1 /* $NetBSD: if_ath_arbus.c,v 1.18 2010/02/24 22:37:55 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_ath_arbus.c,v 1.18 2010/02/24 22:37:55 dyoung Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/mbuf.h> 43 #include <sys/malloc.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <net/if.h> 51 #include <net/if_media.h> 52 #include <net/if_ether.h> 53 #include <net/if_llc.h> 54 #include <net/if_arp.h> 55 56 #include <netinet/in.h> 57 58 #include <net80211/ieee80211_netbsd.h> 59 #include <net80211/ieee80211_var.h> 60 61 #include <mips/atheros/include/ar531xvar.h> 62 #include <mips/atheros/include/arbusvar.h> 63 64 #include <dev/pci/pcidevs.h> 65 #include <dev/ic/ath_netbsd.h> 66 #include <dev/ic/athvar.h> 67 68 #include <ah.h> 69 #include <ah_soc.h> /* XXX really doesn't belong in hal */ 70 71 struct ath_arbus_softc { 72 struct ath_softc sc_ath; 73 bus_space_tag_t sc_iot; 74 bus_space_handle_t sc_ioh; 75 void *sc_ih; 76 struct ar531x_config sc_config; 77 }; 78 79 static int ath_arbus_match(device_t, cfdata_t, void *); 80 static void ath_arbus_attach(device_t, device_t, void *); 81 static int ath_arbus_detach(device_t, int); 82 83 CFATTACH_DECL_NEW(ath_arbus, sizeof(struct ath_arbus_softc), 84 ath_arbus_match, ath_arbus_attach, ath_arbus_detach, NULL); 85 86 static int 87 ath_arbus_match(device_t parent, cfdata_t cf, void *opaque) 88 { 89 struct arbus_attach_args *aa; 90 91 aa = (struct arbus_attach_args *)opaque; 92 if (strcmp(aa->aa_name, "ath") == 0) 93 return 1; 94 95 return 0; 96 } 97 98 static bool 99 ath_arbus_resume(device_t dv, const pmf_qual_t *qual) 100 { 101 struct ath_arbus_softc *asc = device_private(dv); 102 ath_resume(&asc->sc_ath); 103 104 return true; 105 } 106 107 108 static void 109 ath_arbus_attach(device_t parent, device_t self, void *opaque) 110 { 111 struct ath_arbus_softc *asc; 112 struct ath_softc *sc; 113 struct arbus_attach_args *aa; 114 const char *name; 115 prop_number_t prop; 116 int rv; 117 uint16_t devid; 118 119 asc = device_private(self); 120 sc = &asc->sc_ath; 121 sc->sc_dev = self; 122 aa = (struct arbus_attach_args *)opaque; 123 124 prop = prop_dictionary_get(device_properties(sc->sc_dev), 125 "wmac-rev"); 126 if (prop == NULL) { 127 printf(": unable to get wmac-rev property\n"); 128 return; 129 } 130 KDASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER); 131 132 devid = (uint16_t)prop_number_integer_value(prop); 133 name = ath_hal_probe(PCI_VENDOR_ATHEROS, devid); 134 135 printf(": %s\n", name ? name : "Unknown AR531X WLAN"); 136 137 asc->sc_iot = aa->aa_bst; 138 rv = bus_space_map(asc->sc_iot, aa->aa_addr, aa->aa_size, 0, 139 &asc->sc_ioh); 140 if (rv) { 141 aprint_error_dev(self, "unable to map registers\n"); 142 return; 143 } 144 /* 145 * Setup HAL configuration state for use by the driver. 146 */ 147 rv = ar531x_board_config(&asc->sc_config); 148 if (rv) { 149 aprint_error_dev(self, "unable to locate board configuration\n"); 150 return; 151 } 152 asc->sc_config.unit = device_unit(sc->sc_dev); 153 asc->sc_config.tag = asc->sc_iot; 154 155 /* NB: the HAL expects the config state passed as the tag */ 156 sc->sc_st = (HAL_BUS_TAG) &asc->sc_config; 157 sc->sc_sh = (HAL_BUS_HANDLE) asc->sc_ioh; 158 sc->sc_dmat = aa->aa_dmat; 159 160 asc->sc_ih = arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, ath_intr, 161 sc); 162 if (asc->sc_ih == NULL) { 163 aprint_error_dev(self, "couldn't establish interrupt\n"); 164 return; 165 } 166 167 ATH_LOCK_INIT(sc); 168 169 if (!pmf_device_register(self, NULL, ath_arbus_resume)) 170 aprint_error_dev(self, "couldn't establish power handler\n"); 171 else 172 pmf_class_network_register(self, &sc->sc_if); 173 174 if (ath_attach(devid, sc) != 0) { 175 aprint_error_dev(self, "ath_attach failed\n"); 176 goto err; 177 } 178 179 return; 180 181 err: 182 arbus_intr_disestablish(asc->sc_ih); 183 } 184 185 static int 186 ath_arbus_detach(device_t self, int flags) 187 { 188 struct ath_arbus_softc *asc = device_private(self); 189 190 ath_detach(&asc->sc_ath); 191 arbus_intr_disestablish(asc->sc_ih); 192 193 return (0); 194 } 195