ehci_pci.c revision 1.3
1 /* $NetBSD: ehci_pci.c,v 1.3 2000/12/28 22:59:12 sommerfeld Exp $ */ 2 3 /* 4 * Copyright (c) 2000 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 (at) augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/device.h> 43 #include <sys/proc.h> 44 #include <sys/queue.h> 45 46 #include <machine/bus.h> 47 48 #include <dev/pci/pcivar.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/ehcireg.h> 56 #include <dev/usb/ehcivar.h> 57 58 int ehci_pci_match(struct device *, struct cfdata *, void *); 59 void ehci_pci_attach(struct device *, struct device *, void *); 60 int ehci_pci_detach(device_ptr_t, int); 61 62 struct ehci_pci_softc { 63 ehci_softc_t sc; 64 pci_chipset_tag_t sc_pc; 65 pcitag_t sc_tag; 66 void *sc_ih; /* interrupt vectoring */ 67 }; 68 69 struct cfattach ehci_pci_ca = { 70 sizeof(struct ehci_pci_softc), ehci_pci_match, ehci_pci_attach, 71 ehci_pci_detach, ehci_activate 72 }; 73 74 int 75 ehci_pci_match(struct device *parent, struct cfdata *match, void *aux) 76 { 77 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 78 79 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 80 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 81 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_EHCI) 82 return (1); 83 84 return (0); 85 } 86 87 void 88 ehci_pci_attach(struct device *parent, struct device *self, void *aux) 89 { 90 struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self; 91 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 92 pci_chipset_tag_t pc = pa->pa_pc; 93 pcitag_t tag = pa->pa_tag; 94 char const *intrstr; 95 pci_intr_handle_t ih; 96 pcireg_t csr; 97 char *vendor; 98 char *devname = sc->sc.sc_bus.bdev.dv_xname; 99 char devinfo[256]; 100 usbd_status r; 101 102 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 103 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 104 105 /* Map I/O registers */ 106 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 107 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 108 printf("%s: can't map i/o space\n", devname); 109 return; 110 } 111 112 /* Disable interrupts, so we don't get any spurious ones. */ 113 /* bus_space_write_2(sc->sc.iot, sc->sc.ioh, EHCI_INTR, 0); */ 114 115 sc->sc_pc = pc; 116 sc->sc_tag = tag; 117 sc->sc.sc_bus.dmatag = pa->pa_dmat; 118 119 /* Enable the device. */ 120 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 121 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 122 csr | PCI_COMMAND_MASTER_ENABLE); 123 124 /* Map and establish the interrupt. */ 125 if (pci_intr_map(pa, &ih)) { 126 printf("%s: couldn't map interrupt\n", devname); 127 return; 128 } 129 intrstr = pci_intr_string(pc, ih); 130 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ehci_intr, sc); 131 if (sc->sc_ih == NULL) { 132 printf("%s: couldn't establish interrupt", devname); 133 if (intrstr != NULL) 134 printf(" at %s", intrstr); 135 printf("\n"); 136 return; 137 } 138 printf("%s: interrupting at %s\n", devname, intrstr); 139 140 switch(pci_conf_read(pc, tag, PCI_USBREV) & PCI_USBREV_MASK) { 141 case PCI_USBREV_PRE_1_0: 142 sc->sc.sc_bus.usbrev = USBREV_PRE_1_0; 143 break; 144 case PCI_USBREV_1_0: 145 sc->sc.sc_bus.usbrev = USBREV_1_0; 146 break; 147 case PCI_USBREV_1_1: 148 sc->sc.sc_bus.usbrev = USBREV_1_1; 149 break; 150 case PCI_USBREV_2_0: 151 sc->sc.sc_bus.usbrev = USBREV_2_0; 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(pa->pa_id); 160 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 161 if (vendor) 162 strncpy(sc->sc.sc_vendor, vendor, 163 sizeof(sc->sc.sc_vendor) - 1); 164 else 165 sprintf(sc->sc.sc_vendor, "vendor 0x%04x", 166 PCI_VENDOR(pa->pa_id)); 167 168 r = ehci_init(&sc->sc); 169 if (r != USBD_NORMAL_COMPLETION) { 170 printf("%s: init failed, error=%d\n", devname, r); 171 return; 172 } 173 174 /* Attach usb device. */ 175 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 176 usbctlprint); 177 } 178 179 int 180 ehci_pci_detach(device_ptr_t self, int flags) 181 { 182 struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self; 183 int rv; 184 185 rv = ehci_detach(&sc->sc, flags); 186 if (rv) 187 return (rv); 188 if (sc->sc_ih != NULL) { 189 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 190 sc->sc_ih = NULL; 191 } 192 if (sc->sc.sc_size) { 193 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 194 sc->sc.sc_size = 0; 195 } 196 return (0); 197 } 198
Indexes created Tue Sep 30 20:09:53 GMT 2025