1 /* $OpenBSD: ehci_cardbus.c,v 1.22 2015/11/11 02:29:14 jsg Exp $ */ 2 /* $NetBSD: ehci_cardbus.c,v 1.6.6.3 2004/09/21 13:27:25 skrll Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/rwlock.h> 38 #include <sys/device.h> 39 40 #include <machine/bus.h> 41 42 #include <dev/cardbus/cardbusvar.h> 43 44 #include <dev/usb/usb.h> 45 #include <dev/usb/usbdi.h> 46 #include <dev/usb/usbdivar.h> 47 #include <dev/usb/usb_mem.h> 48 49 #include <dev/usb/ehcireg.h> 50 #include <dev/usb/ehcivar.h> 51 52 int ehci_cardbus_match(struct device *, void *, void *); 53 void ehci_cardbus_attach(struct device *, struct device *, void *); 54 int ehci_cardbus_detach(struct device *, int); 55 56 struct ehci_cardbus_softc { 57 struct ehci_softc sc; 58 cardbus_chipset_tag_t sc_cc; 59 cardbus_function_tag_t sc_cf; 60 cardbus_devfunc_t sc_ct; 61 void *sc_ih; /* interrupt vectoring */ 62 }; 63 64 struct cfattach ehci_cardbus_ca = { 65 sizeof(struct ehci_cardbus_softc), ehci_cardbus_match, 66 ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate 67 }; 68 69 #define CARDBUS_CBMEM PCI_CBMEM 70 #define cardbus_findvendor pci_findvendor 71 72 int 73 ehci_cardbus_match(struct device *parent, void *match, void *aux) 74 { 75 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 76 77 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && 78 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && 79 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI) 80 return (1); 81 82 return (0); 83 } 84 85 void 86 ehci_cardbus_attach(struct device *parent, struct device *self, void *aux) 87 { 88 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 89 struct cardbus_attach_args *ca = aux; 90 cardbus_devfunc_t ct = ca->ca_ct; 91 cardbus_chipset_tag_t cc = ct->ct_cc; 92 pci_chipset_tag_t pc = ca->ca_pc; 93 cardbus_function_tag_t cf = ct->ct_cf; 94 pcireg_t csr; 95 usbd_status r; 96 const char *vendor; 97 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 98 99 /* Map I/O registers */ 100 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 101 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 102 printf(": can't map mem space\n"); 103 return; 104 } 105 106 sc->sc_cc = cc; 107 sc->sc_cf = cf; 108 sc->sc_ct = ct; 109 sc->sc.sc_bus.dmatag = ca->ca_dmat; 110 111 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 112 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 113 114 /* Enable the device. */ 115 csr = pci_conf_read(pc, ca->ca_tag, 116 PCI_COMMAND_STATUS_REG); 117 pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG, 118 csr | PCI_COMMAND_MASTER_ENABLE 119 | PCI_COMMAND_MEM_ENABLE); 120 121 /* Disable interrupts, so we don't get any spurious ones. */ 122 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 123 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 124 125 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, 126 IPL_USB | IPL_MPSAFE, ehci_intr, sc, devname); 127 if (sc->sc_ih == NULL) { 128 printf(": unable to establish interrupt\n"); 129 return; 130 } 131 printf(": irq %d\n", ca->ca_intrline); 132 133 /* Figure out vendor for root hub descriptor. */ 134 vendor = cardbus_findvendor(ca->ca_id); 135 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); 136 if (vendor) 137 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 138 else 139 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 140 "vendor 0x%04x", PCI_VENDOR(ca->ca_id)); 141 142 r = ehci_init(&sc->sc); 143 if (r != USBD_NORMAL_COMPLETION) { 144 printf("%s: init failed, error=%d\n", devname, r); 145 146 /* Avoid spurious interrupts. */ 147 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 148 sc->sc_ih = NULL; 149 150 return; 151 } 152 153 /* Attach usb device. */ 154 config_found(self, &sc->sc.sc_bus, usbctlprint); 155 } 156 157 int 158 ehci_cardbus_detach(struct device *self, int flags) 159 { 160 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self; 161 struct cardbus_devfunc *ct = sc->sc_ct; 162 int rv; 163 164 rv = ehci_detach(self, flags); 165 if (rv) 166 return (rv); 167 if (sc->sc_ih != NULL) { 168 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 169 sc->sc_ih = NULL; 170 } 171 if (sc->sc.sc_size) { 172 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot, 173 sc->sc.ioh, sc->sc.sc_size); 174 sc->sc.sc_size = 0; 175 } 176 return (0); 177 } 178