ehci_cardbus.c revision 1.26
1 /* $NetBSD: ehci_cardbus.c,v 1.26 2010/02/25 23:40:39 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 (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 1.26 2010/02/25 23:40:39 dyoung 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 #define CARDBUS_INTERFACE_EHCI PCI_INTERFACE_EHCI 84 #define CARDBUS_CBMEM PCI_CBMEM 85 #define cardbus_findvendor pci_findvendor 86 #define cardbus_devinfo pci_devinfo 87 88 static TAILQ_HEAD(, usb_cardbus) ehci_cardbus_alldevs = 89 TAILQ_HEAD_INITIALIZER(ehci_cardbus_alldevs); 90 91 int 92 ehci_cardbus_match(device_t parent, cfdata_t match, void *aux) 93 { 94 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 95 96 if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS && 97 CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB && 98 CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_EHCI) 99 return (1); 100 101 return (0); 102 } 103 104 static bool 105 ehci_cardbus_suspend(device_t dv, const pmf_qual_t *qual) 106 { 107 ehci_suspend(dv, qual); 108 #if 0 109 struct ehci_cardbus_softc *sc = device_private(dv); 110 ehci_release_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 111 #endif 112 113 return true; 114 } 115 116 static bool 117 ehci_cardbus_resume(device_t dv, const pmf_qual_t *qual) 118 { 119 #if 0 120 struct ehci_cardbus_softc *sc = device_private(dv); 121 ehci_get_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 122 #endif 123 return ehci_resume(dv, qual); 124 } 125 126 void 127 ehci_cardbus_attach(device_t parent, device_t self, void *aux) 128 { 129 struct ehci_cardbus_softc *sc = device_private(self); 130 struct cardbus_attach_args *ca = aux; 131 cardbus_devfunc_t ct = ca->ca_ct; 132 cardbus_chipset_tag_t cc = ct->ct_cc; 133 cardbus_function_tag_t cf = ct->ct_cf; 134 pcireg_t csr; 135 char devinfo[256]; 136 usbd_status r; 137 const char *vendor; 138 u_int ncomp; 139 const char *devname = device_xname(self); 140 struct usb_cardbus *up; 141 142 sc->sc.sc_dev = self; 143 sc->sc.sc_bus.hci_private = sc; 144 145 cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 146 printf(": %s (rev. 0x%02x)\n", devinfo, 147 CARDBUS_REVISION(ca->ca_class)); 148 149 /* Map I/O registers */ 150 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 151 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 152 printf("%s: can't map mem space\n", devname); 153 return; 154 } 155 156 sc->sc_cc = cc; 157 sc->sc_cf = cf; 158 sc->sc_ct = ct; 159 sc->sc.sc_bus.dmatag = ca->ca_dmat; 160 161 #if rbus 162 #else 163 XXX (ct->ct_cf->cardbus_mem_open)(cc, 0, iob, iob + 0x40); 164 #endif 165 166 /* Enable the device. */ 167 csr = cardbus_conf_read(cc, cf, ca->ca_tag, 168 CARDBUS_COMMAND_STATUS_REG); 169 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 170 csr | CARDBUS_COMMAND_MASTER_ENABLE 171 | CARDBUS_COMMAND_MEM_ENABLE); 172 173 /* Disable interrupts, so we don't get any spurious ones. */ 174 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 175 DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs)); 176 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 177 178 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, 179 IPL_USB, ehci_intr, sc); 180 if (sc->sc_ih == NULL) { 181 printf("%s: couldn't establish interrupt\n", devname); 182 return; 183 } 184 185 /* Figure out vendor for root hub descriptor. */ 186 vendor = cardbus_findvendor(ca->ca_id); 187 sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id); 188 if (vendor) 189 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 190 else 191 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 192 "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id)); 193 194 /* 195 * Find companion controllers. According to the spec they always 196 * have lower function numbers so they should be enumerated already. 197 */ 198 ncomp = 0; 199 TAILQ_FOREACH(up, &ehci_cardbus_alldevs, next) { 200 if (up->bus == ca->ca_bus) { 201 DPRINTF(("ehci_cardbus_attach: companion %s\n", 202 device_xname(up->usb))); 203 sc->sc.sc_comps[ncomp++] = up->usb; 204 if (ncomp >= EHCI_COMPANION_MAX) 205 break; 206 } 207 } 208 sc->sc.sc_ncomp = ncomp; 209 210 r = ehci_init(&sc->sc); 211 if (r != USBD_NORMAL_COMPLETION) { 212 printf("%s: init failed, error=%d\n", devname, r); 213 214 /* Avoid spurious interrupts. */ 215 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 216 sc->sc_ih = NULL; 217 218 return; 219 } 220 221 if (!pmf_device_register1(self, ehci_cardbus_suspend, 222 ehci_cardbus_resume, ehci_shutdown)) 223 aprint_error_dev(self, "couldn't establish power handler\n"); 224 225 /* Attach usb device. */ 226 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 227 } 228 229 int 230 ehci_cardbus_detach(device_t self, int flags) 231 { 232 struct ehci_cardbus_softc *sc = device_private(self); 233 struct cardbus_devfunc *ct = sc->sc_ct; 234 int rv; 235 236 rv = ehci_detach(&sc->sc, flags); 237 if (rv) 238 return (rv); 239 if (sc->sc_ih != NULL) { 240 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 241 sc->sc_ih = NULL; 242 } 243 if (sc->sc.sc_size) { 244 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot, 245 sc->sc.ioh, sc->sc.sc_size); 246 sc->sc.sc_size = 0; 247 } 248 return (0); 249 } 250 251 void 252 usb_cardbus_add(struct usb_cardbus *up, struct cardbus_attach_args *ca, device_t bu) 253 { 254 TAILQ_INSERT_TAIL(&ehci_cardbus_alldevs, up, next); 255 up->bus = ca->ca_bus; 256 up->function = ca->ca_function; 257 up->usb = bu; 258 } 259 260 void 261 usb_cardbus_rem(struct usb_cardbus *up) 262 { 263 TAILQ_REMOVE(&ehci_cardbus_alldevs, up, next); 264 } 265
Indexes created Tue Oct 28 12:10:06 GMT 2025