ehci_cardbus.c revision 1.33
1 /* $NetBSD: ehci_cardbus.c,v 1.33 2016/04/23 10:15:31 skrll 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 (at) 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: ehci_cardbus.c,v 1.33 2016/04/23 10:15:31 skrll Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/proc.h> 41 42 #include <sys/bus.h> 43 44 #if defined pciinc 45 #include <dev/pci/pcidevs.h> 46 #endif 47 48 #include <dev/cardbus/cardbusvar.h> 49 #include <dev/pci/pcidevs.h> 50 51 #include <dev/cardbus/usb_cardbus.h> 52 53 #include <dev/usb/usb.h> 54 #include <dev/usb/usbdi.h> 55 #include <dev/usb/usbdivar.h> 56 #include <dev/usb/usb_mem.h> 57 58 #include <dev/usb/ehcireg.h> 59 #include <dev/usb/ehcivar.h> 60 61 #ifdef EHCI_DEBUG 62 #define DPRINTF(x) if (ehcidebug) printf x 63 extern int ehcidebug; 64 #else 65 #define DPRINTF(x) 66 #endif 67 68 int ehci_cardbus_match(device_t, cfdata_t, void *); 69 void ehci_cardbus_attach(device_t, device_t, void *); 70 int ehci_cardbus_detach(device_t, int); 71 72 struct ehci_cardbus_softc { 73 ehci_softc_t sc; 74 cardbus_chipset_tag_t sc_cc; 75 cardbus_function_tag_t sc_cf; 76 cardbus_devfunc_t sc_ct; 77 void *sc_ih; /* interrupt vectoring */ 78 }; 79 80 CFATTACH_DECL_NEW(ehci_cardbus, sizeof(struct ehci_cardbus_softc), 81 ehci_cardbus_match, ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate); 82 83 static TAILQ_HEAD(, usb_cardbus) ehci_cardbus_alldevs = 84 TAILQ_HEAD_INITIALIZER(ehci_cardbus_alldevs); 85 86 int 87 ehci_cardbus_match(device_t parent, cfdata_t match, void *aux) 88 { 89 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 90 91 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && 92 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && 93 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI) 94 return 1; 95 96 return 0; 97 } 98 99 static bool 100 ehci_cardbus_suspend(device_t dv, const pmf_qual_t *qual) 101 { 102 ehci_suspend(dv, qual); 103 #if 0 104 struct ehci_cardbus_softc *sc = device_private(dv); 105 ehci_release_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 106 #endif 107 108 return true; 109 } 110 111 static bool 112 ehci_cardbus_resume(device_t dv, const pmf_qual_t *qual) 113 { 114 #if 0 115 struct ehci_cardbus_softc *sc = device_private(dv); 116 ehci_get_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 117 #endif 118 return ehci_resume(dv, qual); 119 } 120 121 void 122 ehci_cardbus_attach(device_t parent, device_t self, void *aux) 123 { 124 struct ehci_cardbus_softc *sc = device_private(self); 125 struct cardbus_attach_args *ca = aux; 126 cardbus_devfunc_t ct = ca->ca_ct; 127 cardbus_chipset_tag_t cc = ct->ct_cc; 128 cardbus_function_tag_t cf = ct->ct_cf; 129 pcireg_t csr; 130 char devinfo[256]; 131 u_int ncomp; 132 const char *devname = device_xname(self); 133 struct usb_cardbus *up; 134 135 sc->sc.sc_dev = self; 136 sc->sc.sc_bus.ub_hcpriv = sc; 137 138 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 139 printf(": %s (rev. 0x%02x)\n", devinfo, 140 PCI_REVISION(ca->ca_class)); 141 142 /* Map I/O registers */ 143 if (Cardbus_mapreg_map(ct, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 144 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 145 printf("%s: can't map mem space\n", devname); 146 return; 147 } 148 149 sc->sc_cc = cc; 150 sc->sc_cf = cf; 151 sc->sc_ct = ct; 152 sc->sc.sc_bus.ub_dmatag = ca->ca_dmat; 153 154 /* Enable the device. */ 155 csr = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG); 156 Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, 157 csr | PCI_COMMAND_MASTER_ENABLE 158 | PCI_COMMAND_MEM_ENABLE); 159 160 /* Disable interrupts, so we don't get any spurious ones. */ 161 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 162 DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs)); 163 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 164 165 sc->sc_ih = Cardbus_intr_establish(ct, IPL_USB, ehci_intr, sc); 166 if (sc->sc_ih == NULL) { 167 printf("%s: couldn't establish interrupt\n", devname); 168 return; 169 } 170 171 /* Figure out vendor for root hub descriptor. */ 172 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); 173 pci_findvendor(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 174 sc->sc.sc_id_vendor); 175 176 /* 177 * Find companion controllers. According to the spec they always 178 * have lower function numbers so they should be enumerated already. 179 */ 180 ncomp = 0; 181 TAILQ_FOREACH(up, &ehci_cardbus_alldevs, next) { 182 if (up->bus == ca->ca_bus) { 183 DPRINTF(("ehci_cardbus_attach: companion %s\n", 184 device_xname(up->usb))); 185 sc->sc.sc_comps[ncomp++] = up->usb; 186 if (ncomp >= EHCI_COMPANION_MAX) 187 break; 188 } 189 } 190 sc->sc.sc_ncomp = ncomp; 191 192 int err = ehci_init(&sc->sc); 193 if (err) { 194 printf("%s: init failed, error=%d\n", devname, err); 195 196 /* Avoid spurious interrupts. */ 197 Cardbus_intr_disestablish(ct, sc->sc_ih); 198 sc->sc_ih = NULL; 199 200 return; 201 } 202 203 if (!pmf_device_register1(self, ehci_cardbus_suspend, 204 ehci_cardbus_resume, ehci_shutdown)) 205 aprint_error_dev(self, "couldn't establish power handler\n"); 206 207 /* Attach usb device. */ 208 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 209 } 210 211 int 212 ehci_cardbus_detach(device_t self, int flags) 213 { 214 struct ehci_cardbus_softc *sc = device_private(self); 215 struct cardbus_devfunc *ct = sc->sc_ct; 216 int rv; 217 218 rv = ehci_detach(&sc->sc, flags); 219 if (rv) 220 return rv; 221 if (sc->sc_ih != NULL) { 222 Cardbus_intr_disestablish(ct, sc->sc_ih); 223 sc->sc_ih = NULL; 224 } 225 if (sc->sc.sc_size) { 226 Cardbus_mapreg_unmap(ct, PCI_CBMEM, sc->sc.iot, 227 sc->sc.ioh, sc->sc.sc_size); 228 sc->sc.sc_size = 0; 229 } 230 return 0; 231 } 232 233 void 234 usb_cardbus_add(struct usb_cardbus *up, struct cardbus_attach_args *ca, device_t bu) 235 { 236 TAILQ_INSERT_TAIL(&ehci_cardbus_alldevs, up, next); 237 up->bus = ca->ca_bus; 238 up->function = ca->ca_function; 239 up->usb = bu; 240 } 241 242 void 243 usb_cardbus_rem(struct usb_cardbus *up) 244 { 245 TAILQ_REMOVE(&ehci_cardbus_alldevs, up, next); 246 } 247
Indexes created Thu Oct 02 01:09:59 GMT 2025