1 /* $NetBSD: if_ral_cardbus.c,v 1.26 2022/09/25 17:33:19 thorpej Exp $ */ 2 /* $OpenBSD: if_ral_cardbus.c,v 1.6 2006/01/09 20:03:31 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2005, 2006 6 * Damien Bergamini <damien.bergamini (at) free.fr> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 /* 22 * CardBus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 23 */ 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.26 2022/09/25 17:33:19 thorpej Exp $"); 26 27 28 #include <sys/param.h> 29 #include <sys/sockio.h> 30 #include <sys/mbuf.h> 31 #include <sys/kernel.h> 32 #include <sys/socket.h> 33 #include <sys/systm.h> 34 #include <sys/callout.h> 35 #include <sys/device.h> 36 37 #include <sys/bus.h> 38 #include <sys/intr.h> 39 40 #include <net/if.h> 41 #include <net/if_dl.h> 42 #include <net/if_media.h> 43 #include <net/if_ether.h> 44 45 #include <netinet/in.h> 46 47 #include <net80211/ieee80211_var.h> 48 #include <net80211/ieee80211_amrr.h> 49 #include <net80211/ieee80211_rssadapt.h> 50 #include <net80211/ieee80211_radiotap.h> 51 52 #include <dev/ic/rt2560var.h> 53 #include <dev/ic/rt2661var.h> 54 55 #include <dev/pci/pcireg.h> 56 #include <dev/pci/pcivar.h> 57 #include <dev/pci/pcidevs.h> 58 59 #include <dev/cardbus/cardbusvar.h> 60 61 static struct ral_opns { 62 int (*attach)(void *, int); 63 int (*detach)(void *); 64 int (*intr)(void *); 65 66 } ral_rt2560_opns = { 67 rt2560_attach, 68 rt2560_detach, 69 rt2560_intr 70 71 }, ral_rt2661_opns = { 72 rt2661_attach, 73 rt2661_detach, 74 rt2661_intr 75 }; 76 77 struct ral_cardbus_softc { 78 union { 79 struct rt2560_softc sc_rt2560; 80 struct rt2661_softc sc_rt2661; 81 } u; 82 #define sc_sc u.sc_rt2560 83 84 /* cardbus specific goo */ 85 struct ral_opns *sc_opns; 86 cardbus_devfunc_t sc_ct; 87 pcitag_t sc_tag; 88 void *sc_ih; 89 bus_size_t sc_mapsize; 90 pcireg_t sc_bar_val; 91 }; 92 93 int ral_cardbus_match(device_t, cfdata_t, void *); 94 void ral_cardbus_attach(device_t, device_t, void *); 95 int ral_cardbus_detach(device_t, int); 96 97 CFATTACH_DECL_NEW(ral_cardbus, sizeof (struct ral_cardbus_softc), 98 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 99 100 int ral_cardbus_enable(struct rt2560_softc *); 101 void ral_cardbus_disable(struct rt2560_softc *); 102 void ral_cardbus_power(struct rt2560_softc *, int); 103 void ral_cardbus_setup(struct ral_cardbus_softc *); 104 105 int 106 ral_cardbus_match(device_t parent, cfdata_t cfdata, void *aux) 107 { 108 struct cardbus_attach_args *ca = aux; 109 110 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { 111 switch (PCI_PRODUCT(ca->ca_id)) { 112 case PCI_PRODUCT_RALINK_RT2560: 113 case PCI_PRODUCT_RALINK_RT2561: 114 case PCI_PRODUCT_RALINK_RT2561S: 115 case PCI_PRODUCT_RALINK_RT2661: 116 return 1; 117 default: 118 return 0; 119 } 120 } 121 122 return 0; 123 } 124 125 void 126 ral_cardbus_attach(device_t parent, device_t self, void *aux) 127 { 128 struct ral_cardbus_softc *csc = device_private(self); 129 struct rt2560_softc *sc = &csc->sc_sc; 130 struct cardbus_attach_args *ca = aux; 131 cardbus_devfunc_t ct = ca->ca_ct; 132 char devinfo[256]; 133 bus_addr_t base; 134 int error, revision; 135 136 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 137 revision = PCI_REVISION(ca->ca_class); 138 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 139 140 csc->sc_opns = 141 (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 142 &ral_rt2560_opns : &ral_rt2661_opns; 143 144 sc->sc_dev = self; 145 sc->sc_dmat = ca->ca_dmat; 146 csc->sc_ct = ct; 147 csc->sc_tag = ca->ca_tag; 148 149 /* power management hooks */ 150 sc->sc_enable = ral_cardbus_enable; 151 sc->sc_disable = ral_cardbus_disable; 152 153 /* map control/status registers */ 154 error = Cardbus_mapreg_map(ct, PCI_BAR0, 155 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 156 &csc->sc_mapsize); 157 if (error != 0) { 158 aprint_error(": could not map memory space\n"); 159 return; 160 } 161 162 csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; 163 164 /* set up the PCI configuration registers */ 165 ral_cardbus_setup(csc); 166 167 (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); 168 169 Cardbus_function_disable(ct); 170 } 171 172 int 173 ral_cardbus_detach(device_t self, int flags) 174 { 175 struct ral_cardbus_softc *csc = device_private(self); 176 struct rt2560_softc *sc = &csc->sc_sc; 177 cardbus_devfunc_t ct = csc->sc_ct; 178 int error; 179 180 error = (*csc->sc_opns->detach)(sc); 181 if (error != 0) 182 return error; 183 184 /* unhook the interrupt handler */ 185 if (csc->sc_ih != NULL) { 186 Cardbus_intr_disestablish(ct, csc->sc_ih); 187 csc->sc_ih = NULL; 188 } 189 190 /* release bus space and close window */ 191 Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, 192 csc->sc_mapsize); 193 194 return 0; 195 } 196 197 int 198 ral_cardbus_enable(struct rt2560_softc *sc) 199 { 200 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 201 cardbus_devfunc_t ct = csc->sc_ct; 202 203 /* power on the socket */ 204 Cardbus_function_enable(ct); 205 206 /* setup the PCI configuration registers */ 207 ral_cardbus_setup(csc); 208 209 /* map and establish the interrupt handler */ 210 csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, 211 csc->sc_opns->intr, sc); 212 if (csc->sc_ih == NULL) { 213 aprint_error_dev(sc->sc_dev, 214 "could not establish interrupt\n"); 215 Cardbus_function_disable(ct); 216 return 1; 217 } 218 219 return 0; 220 } 221 222 void 223 ral_cardbus_disable(struct rt2560_softc *sc) 224 { 225 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 226 cardbus_devfunc_t ct = csc->sc_ct; 227 228 /* unhook the interrupt handler */ 229 Cardbus_intr_disestablish(ct, csc->sc_ih); 230 csc->sc_ih = NULL; 231 232 /* power down the socket */ 233 Cardbus_function_disable(ct); 234 } 235 236 void 237 ral_cardbus_setup(struct ral_cardbus_softc *csc) 238 { 239 cardbus_devfunc_t ct = csc->sc_ct; 240 pcireg_t reg; 241 242 /* program the BAR */ 243 Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); 244 245 /* enable the appropriate bits in the PCI CSR */ 246 reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 247 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 248 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); 249 } 250
Indexes created Sat Sep 20 22:09:52 GMT 2025