ralink_ohci.c revision 1.1.2.1
1 /* $NetBSD: ralink_ohci.c,v 1.1.2.1 2011/07/01 05:45:45 matt Exp $ */ 2 /*- 3 * Copyright (c) 2011 CradlePoint Technology, Inc. 4 * All rights reserved. 5 * 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY CRADLEPOINT TECHNOLOGY, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* ralink_ohci.c -- Ralink OHCI USB Driver */ 30 31 #include "ehci.h" 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: ralink_ohci.c,v 1.1.2.1 2011/07/01 05:45:45 matt Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/bus.h> 38 39 #include <dev/usb/usb.h> 40 #include <dev/usb/usbdi.h> 41 #include <dev/usb/usbdivar.h> 42 #include <dev/usb/usb_mem.h> 43 44 #include <dev/usb/ohcireg.h> 45 #include <dev/usb/ohcivar.h> 46 47 #include <mips/ralink/ralink_var.h> 48 #include <mips/ralink/ralink_reg.h> 49 #include <mips/ralink/ralink_usbhcvar.h> 50 51 #define OREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (a)) 52 #define OWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (a), (x)) 53 54 #define RT3XXX_OHCI_BASE 0x101c1000 55 #define RT3XXX_BLOCK_SIZE 0x1000 56 57 struct ralink_ohci_softc { 58 struct ohci_softc sc_ohci; 59 #if NEHCI > 0 60 struct ralink_usb_hc sc_hc; 61 #endif 62 void *sc_ih; 63 }; 64 65 static int ralink_ohci_match(device_t, cfdata_t, void *); 66 static void ralink_ohci_attach(device_t, device_t, void *); 67 static int ralink_ohci_detach(device_t, int); 68 static bool ralink_ohci_suspend(device_t PMF_FN_PROTO); 69 static bool ralink_ohci_resume(device_t PMF_FN_PROTO); 70 71 CFATTACH_DECL2_NEW(ralink_ohci, sizeof(struct ralink_ohci_softc), 72 ralink_ohci_match, ralink_ohci_attach, ralink_ohci_detach, 73 ohci_activate, NULL, ohci_childdet); 74 75 /* 76 * ralink_ohci_match 77 */ 78 static int 79 ralink_ohci_match(device_t parent, cfdata_t cf, void *aux) 80 { 81 return 1; 82 } 83 84 /* 85 * ralink_ohci_attach 86 */ 87 static void 88 ralink_ohci_attach(device_t parent, device_t self, void *aux) 89 { 90 struct ralink_ohci_softc * const sc = device_private(self); 91 const struct mainbus_attach_args *ma = aux; 92 usbd_status status; 93 int error; 94 #ifdef RALINK_OHCI_DEBUG 95 const char * const devname = device_xname(self); 96 #endif 97 98 aprint_naive(": OHCI USB controller\n"); 99 aprint_normal(": OHCI USB controller\n"); 100 101 sc->sc_ohci.sc_dev = self; 102 sc->sc_ohci.sc_bus.hci_private = sc; 103 sc->sc_ohci.iot = ma->ma_memt; 104 sc->sc_ohci.sc_bus.dmatag = ma->ma_dmat; 105 106 /* Map I/O registers */ 107 if ((error = bus_space_map(sc->sc_ohci.iot, RT3XXX_OHCI_BASE, 108 RT3XXX_BLOCK_SIZE, 0, &sc->sc_ohci.ioh)) != 0) { 109 aprint_error_dev(self, "can't map OHCI registers, " 110 "error=%d\n", error); 111 return; 112 } 113 114 sc->sc_ohci.sc_size = RT3XXX_BLOCK_SIZE; 115 116 #ifdef RALINK_OHCI_DEBUG 117 printf("%s sc: %p ma: %p\n", devname, sc, ma); 118 printf("%s memt: %p dmat: %p\n", devname, ma->ma_memt, ma->ma_dmat); 119 120 printf("%s: OHCI HcRevision=0x%x\n", devname, 121 OREAD4(&sc->sc_ohci, OHCI_REVISION)); 122 printf("%s: OHCI HcControl=0x%x\n", devname, 123 OREAD4(&sc->sc_ohci, OHCI_CONTROL)); 124 printf("%s: OHCI HcCommandStatus=0x%x\n", devname, 125 OREAD4(&sc->sc_ohci, OHCI_COMMAND_STATUS)); 126 printf("%s: OHCI HcInterruptStatus=0x%x\n", devname, 127 OREAD4(&sc->sc_ohci, OHCI_INTERRUPT_STATUS)); 128 #endif 129 130 /* Disable OHCI interrupts. */ 131 OWRITE4(&sc->sc_ohci, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 132 133 /* establish the MIPS level interrupt */ 134 sc->sc_ih = ra_intr_establish(RA_IRQ_USB, ohci_intr, sc, 0); 135 if (sc->sc_ih == NULL) { 136 aprint_error_dev(self, "unable to establish irq %d\n", 137 RA_IRQ_USB); 138 goto fail_0; 139 } 140 141 /* Set vendor for root hub descriptor. */ 142 sc->sc_ohci.sc_id_vendor = 0x1814; 143 strlcpy(sc->sc_ohci.sc_vendor, "Ralink", sizeof(sc->sc_ohci.sc_vendor)); 144 145 /* Initialize OHCI */ 146 status = ohci_init(&sc->sc_ohci); 147 if (status != USBD_NORMAL_COMPLETION) { 148 aprint_error_dev(self, "init failed, error=%d\n", status); 149 goto fail_0; 150 } 151 152 #if NEHCI > 0 153 ralink_usb_hc_add(&sc->sc_hc, self); 154 #endif 155 156 if (!pmf_device_register1(self, ralink_ohci_suspend, ralink_ohci_resume, 157 ohci_shutdown)) 158 aprint_error_dev(self, "couldn't establish power handler\n"); 159 160 /* Attach usb device. */ 161 sc->sc_ohci.sc_child = config_found(self, &sc->sc_ohci.sc_bus, 162 usbctlprint); 163 164 return; 165 166 fail_0: 167 bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh, sc->sc_ohci.sc_size); 168 sc->sc_ohci.sc_size = 0; 169 } 170 171 static int 172 ralink_ohci_detach(device_t self, int flags) 173 { 174 struct ralink_ohci_softc *sc = device_private(self); 175 int rv; 176 177 pmf_device_deregister(self); 178 179 rv = ohci_detach(&sc->sc_ohci, flags); 180 if (rv != 0) 181 return rv; 182 183 if (sc->sc_ih != NULL) { 184 ra_intr_disestablish(sc->sc_ih); 185 sc->sc_ih = NULL; 186 } 187 188 if (sc->sc_ohci.sc_size == 0) { 189 bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh, 190 sc->sc_ohci.sc_size); 191 sc->sc_ohci.sc_size = 0; 192 } 193 194 #if NEHCI > 0 195 ralink_usb_hc_rem(&sc->sc_hc); 196 #endif 197 198 return 0; 199 } 200 201 /* 202 * ralink_ohci_suspend 203 */ 204 static bool 205 ralink_ohci_suspend(device_t dv PMF_FN_ARGS) 206 { 207 ohci_suspend(dv PMF_FN_CALL); 208 209 return true; 210 } 211 212 /* 213 * ralink_ohci_resume 214 */ 215 static bool 216 ralink_ohci_resume(device_t dv PMF_FN_ARGS) 217 { 218 return ohci_resume(dv PMF_FN_CALL); 219 } 220
Indexes created Tue Oct 14 11:09:46 GMT 2025