ehci_cardbus.c revision 1.18
1 /* $NetBSD: ehci_cardbus.c,v 1.18 2008/03/07 22:32:52 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 * 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/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: ehci_cardbus.c,v 1.18 2008/03/07 22:32:52 dyoung Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/proc.h> 48 49 #include <sys/bus.h> 50 51 #if defined pciinc 52 #include <dev/pci/pcidevs.h> 53 #endif 54 55 #include <dev/cardbus/cardbusvar.h> 56 #include <dev/pci/pcidevs.h> 57 58 #include <dev/cardbus/usb_cardbus.h> 59 60 #include <dev/usb/usb.h> 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdivar.h> 63 #include <dev/usb/usb_mem.h> 64 65 #include <dev/usb/ehcireg.h> 66 #include <dev/usb/ehcivar.h> 67 68 #ifdef EHCI_DEBUG 69 #define DPRINTF(x) if (ehcidebug) printf x 70 extern int ehcidebug; 71 #else 72 #define DPRINTF(x) 73 #endif 74 75 int ehci_cardbus_match(device_t, struct cfdata *, void *); 76 void ehci_cardbus_attach(device_t, device_t, void *); 77 int ehci_cardbus_detach(device_t, int); 78 79 struct ehci_cardbus_softc { 80 ehci_softc_t sc; 81 cardbus_chipset_tag_t sc_cc; 82 cardbus_function_tag_t sc_cf; 83 cardbus_devfunc_t sc_ct; 84 void *sc_ih; /* interrupt vectoring */ 85 }; 86 87 CFATTACH_DECL(ehci_cardbus, sizeof(struct ehci_cardbus_softc), 88 ehci_cardbus_match, ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate); 89 90 #define CARDBUS_INTERFACE_EHCI PCI_INTERFACE_EHCI 91 #define CARDBUS_CBMEM PCI_CBMEM 92 #define cardbus_findvendor pci_findvendor 93 #define cardbus_devinfo pci_devinfo 94 95 static TAILQ_HEAD(, usb_cardbus) ehci_cardbus_alldevs = 96 TAILQ_HEAD_INITIALIZER(ehci_cardbus_alldevs); 97 98 int 99 ehci_cardbus_match(device_t parent, struct cfdata *match, void *aux) 100 { 101 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; 102 103 if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS && 104 CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB && 105 CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_EHCI) 106 return (1); 107 108 return (0); 109 } 110 111 static bool 112 ehci_cardbus_suspend(device_t dv PMF_FN_ARGS) 113 { 114 ehci_suspend(dv PMF_FN_CALL); 115 #if 0 116 struct ehci_cardbus_softc *sc = device_private(dv); 117 ehci_release_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 118 #endif 119 120 return true; 121 } 122 123 static bool 124 ehci_cardbus_resume(device_t dv PMF_FN_ARGS) 125 { 126 #if 0 127 struct ehci_cardbus_softc *sc = device_private(dv); 128 ehci_get_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); 129 #endif 130 return ehci_resume(dv PMF_FN_CALL); 131 } 132 133 void 134 ehci_cardbus_attach(device_t parent, device_t self, void *aux) 135 { 136 struct ehci_cardbus_softc *sc = device_private(self); 137 struct cardbus_attach_args *ca = aux; 138 cardbus_devfunc_t ct = ca->ca_ct; 139 cardbus_chipset_tag_t cc = ct->ct_cc; 140 cardbus_function_tag_t cf = ct->ct_cf; 141 cardbusreg_t csr; 142 char devinfo[256]; 143 usbd_status r; 144 const char *vendor; 145 u_int ncomp; 146 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 147 struct usb_cardbus *up; 148 149 cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 150 printf(": %s (rev. 0x%02x)\n", devinfo, 151 CARDBUS_REVISION(ca->ca_class)); 152 153 /* Map I/O registers */ 154 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 155 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 156 printf("%s: can't map mem space\n", devname); 157 return; 158 } 159 160 sc->sc_cc = cc; 161 sc->sc_cf = cf; 162 sc->sc_ct = ct; 163 sc->sc.sc_bus.dmatag = ca->ca_dmat; 164 165 #if rbus 166 #else 167 XXX (ct->ct_cf->cardbus_mem_open)(cc, 0, iob, iob + 0x40); 168 #endif 169 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 170 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 171 172 /* Enable the device. */ 173 csr = cardbus_conf_read(cc, cf, ca->ca_tag, 174 CARDBUS_COMMAND_STATUS_REG); 175 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 176 csr | CARDBUS_COMMAND_MASTER_ENABLE 177 | CARDBUS_COMMAND_MEM_ENABLE); 178 179 /* Disable interrupts, so we don't get any spurious ones. */ 180 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); 181 DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs)); 182 EOWRITE2(&sc->sc, EHCI_USBINTR, 0); 183 184 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, 185 IPL_USB, ehci_intr, sc); 186 if (sc->sc_ih == NULL) { 187 printf("%s: couldn't establish interrupt\n", devname); 188 return; 189 } 190 printf("%s: interrupting at %d\n", devname, ca->ca_intrline); 191 192 /* Figure out vendor for root hub descriptor. */ 193 vendor = cardbus_findvendor(ca->ca_id); 194 sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id); 195 if (vendor) 196 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 197 else 198 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 199 "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id)); 200 201 /* 202 * Find companion controllers. According to the spec they always 203 * have lower function numbers so they should be enumerated already. 204 */ 205 ncomp = 0; 206 TAILQ_FOREACH(up, &ehci_cardbus_alldevs, next) { 207 if (up->bus == ca->ca_bus) { 208 DPRINTF(("ehci_cardbus_attach: companion %s\n", 209 USBDEVNAME(up->usb->bdev))); 210 sc->sc.sc_comps[ncomp++] = up->usb; 211 if (ncomp >= EHCI_COMPANION_MAX) 212 break; 213 } 214 } 215 sc->sc.sc_ncomp = ncomp; 216 217 r = ehci_init(&sc->sc); 218 if (r != USBD_NORMAL_COMPLETION) { 219 printf("%s: init failed, error=%d\n", devname, r); 220 221 /* Avoid spurious interrupts. */ 222 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 223 sc->sc_ih = NULL; 224 225 return; 226 } 227 228 if (!pmf_device_register1(self, ehci_cardbus_suspend, 229 ehci_cardbus_resume, ehci_shutdown)) 230 aprint_error_dev(self, "couldn't establish power handler\n"); 231 232 /* Attach usb device. */ 233 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 234 } 235 236 int 237 ehci_cardbus_detach(device_t self, int flags) 238 { 239 struct ehci_cardbus_softc *sc = device_private(self); 240 struct cardbus_devfunc *ct = sc->sc_ct; 241 int rv; 242 243 rv = ehci_detach(&sc->sc, flags); 244 if (rv) 245 return (rv); 246 if (sc->sc_ih != NULL) { 247 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih); 248 sc->sc_ih = NULL; 249 } 250 if (sc->sc.sc_size) { 251 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot, 252 sc->sc.ioh, sc->sc.sc_size); 253 sc->sc.sc_size = 0; 254 } 255 return (0); 256 } 257 258 void 259 usb_cardbus_add(struct usb_cardbus *up, struct cardbus_attach_args *ca, struct usbd_bus *bu) 260 { 261 TAILQ_INSERT_TAIL(&ehci_cardbus_alldevs, up, next); 262 up->bus = ca->ca_bus; 263 up->function = ca->ca_function; 264 up->usb = bu; 265 } 266 267 void 268 usb_cardbus_rem(struct usb_cardbus *up) 269 { 270 TAILQ_REMOVE(&ehci_cardbus_alldevs, up, next); 271 } 272
Indexes created Wed Oct 01 07:09:59 GMT 2025