1 /* $NetBSD: if_ral_cardbus.c,v 1.25 2018/12/14 21:27:03 jakllsch 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@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 1.25 2018/12/14 21:27:03 jakllsch 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/malloc.h> 35 #include <sys/callout.h> 36 #include <sys/device.h> 37 38 #include <sys/bus.h> 39 #include <sys/intr.h> 40 41 #include <net/if.h> 42 #include <net/if_dl.h> 43 #include <net/if_media.h> 44 #include <net/if_ether.h> 45 46 #include <netinet/in.h> 47 48 #include <net80211/ieee80211_var.h> 49 #include <net80211/ieee80211_amrr.h> 50 #include <net80211/ieee80211_rssadapt.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/ic/rt2560var.h> 54 #include <dev/ic/rt2661var.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcidevs.h> 59 60 #include <dev/cardbus/cardbusvar.h> 61 62 static struct ral_opns { 63 int (*attach)(void *, int); 64 int (*detach)(void *); 65 int (*intr)(void *); 66 67 } ral_rt2560_opns = { 68 rt2560_attach, 69 rt2560_detach, 70 rt2560_intr 71 72 }, ral_rt2661_opns = { 73 rt2661_attach, 74 rt2661_detach, 75 rt2661_intr 76 }; 77 78 struct ral_cardbus_softc { 79 union { 80 struct rt2560_softc sc_rt2560; 81 struct rt2661_softc sc_rt2661; 82 } u; 83 #define sc_sc u.sc_rt2560 84 85 /* cardbus specific goo */ 86 struct ral_opns *sc_opns; 87 cardbus_devfunc_t sc_ct; 88 pcitag_t sc_tag; 89 void *sc_ih; 90 bus_size_t sc_mapsize; 91 pcireg_t sc_bar_val; 92 }; 93 94 int ral_cardbus_match(device_t, cfdata_t, void *); 95 void ral_cardbus_attach(device_t, device_t, void *); 96 int ral_cardbus_detach(device_t, int); 97 98 CFATTACH_DECL_NEW(ral_cardbus, sizeof (struct ral_cardbus_softc), 99 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 100 101 int ral_cardbus_enable(struct rt2560_softc *); 102 void ral_cardbus_disable(struct rt2560_softc *); 103 void ral_cardbus_power(struct rt2560_softc *, int); 104 void ral_cardbus_setup(struct ral_cardbus_softc *); 105 106 int 107 ral_cardbus_match(device_t parent, cfdata_t cfdata, void *aux) 108 { 109 struct cardbus_attach_args *ca = aux; 110 111 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { 112 switch (PCI_PRODUCT(ca->ca_id)) { 113 case PCI_PRODUCT_RALINK_RT2560: 114 case PCI_PRODUCT_RALINK_RT2561: 115 case PCI_PRODUCT_RALINK_RT2561S: 116 case PCI_PRODUCT_RALINK_RT2661: 117 return 1; 118 default: 119 return 0; 120 } 121 } 122 123 return 0; 124 } 125 126 void 127 ral_cardbus_attach(device_t parent, device_t self, void *aux) 128 { 129 struct ral_cardbus_softc *csc = device_private(self); 130 struct rt2560_softc *sc = &csc->sc_sc; 131 struct cardbus_attach_args *ca = aux; 132 cardbus_devfunc_t ct = ca->ca_ct; 133 char devinfo[256]; 134 bus_addr_t base; 135 int error, revision; 136 137 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 138 revision = PCI_REVISION(ca->ca_class); 139 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 140 141 csc->sc_opns = 142 (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 143 &ral_rt2560_opns : &ral_rt2661_opns; 144 145 sc->sc_dev = self; 146 sc->sc_dmat = ca->ca_dmat; 147 csc->sc_ct = ct; 148 csc->sc_tag = ca->ca_tag; 149 150 /* power management hooks */ 151 sc->sc_enable = ral_cardbus_enable; 152 sc->sc_disable = ral_cardbus_disable; 153 154 /* map control/status registers */ 155 error = Cardbus_mapreg_map(ct, PCI_BAR0, 156 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 157 &csc->sc_mapsize); 158 if (error != 0) { 159 aprint_error(": could not map memory space\n"); 160 return; 161 } 162 163 csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; 164 165 /* set up the PCI configuration registers */ 166 ral_cardbus_setup(csc); 167 168 (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); 169 170 Cardbus_function_disable(ct); 171 } 172 173 int 174 ral_cardbus_detach(device_t self, int flags) 175 { 176 struct ral_cardbus_softc *csc = device_private(self); 177 struct rt2560_softc *sc = &csc->sc_sc; 178 cardbus_devfunc_t ct = csc->sc_ct; 179 int error; 180 181 error = (*csc->sc_opns->detach)(sc); 182 if (error != 0) 183 return error; 184 185 /* unhook the interrupt handler */ 186 if (csc->sc_ih != NULL) { 187 Cardbus_intr_disestablish(ct, csc->sc_ih); 188 csc->sc_ih = NULL; 189 } 190 191 /* release bus space and close window */ 192 Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, 193 csc->sc_mapsize); 194 195 return 0; 196 } 197 198 int 199 ral_cardbus_enable(struct rt2560_softc *sc) 200 { 201 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 202 cardbus_devfunc_t ct = csc->sc_ct; 203 204 /* power on the socket */ 205 Cardbus_function_enable(ct); 206 207 /* setup the PCI configuration registers */ 208 ral_cardbus_setup(csc); 209 210 /* map and establish the interrupt handler */ 211 csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, 212 csc->sc_opns->intr, sc); 213 if (csc->sc_ih == NULL) { 214 aprint_error_dev(sc->sc_dev, 215 "could not establish interrupt\n"); 216 Cardbus_function_disable(ct); 217 return 1; 218 } 219 220 return 0; 221 } 222 223 void 224 ral_cardbus_disable(struct rt2560_softc *sc) 225 { 226 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 227 cardbus_devfunc_t ct = csc->sc_ct; 228 229 /* unhook the interrupt handler */ 230 Cardbus_intr_disestablish(ct, csc->sc_ih); 231 csc->sc_ih = NULL; 232 233 /* power down the socket */ 234 Cardbus_function_disable(ct); 235 } 236 237 void 238 ral_cardbus_setup(struct ral_cardbus_softc *csc) 239 { 240 cardbus_devfunc_t ct = csc->sc_ct; 241 pcireg_t reg; 242 243 /* program the BAR */ 244 Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); 245 246 /* enable the appropriate bits in the PCI CSR */ 247 reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 248 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 249 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); 250 } 251