1/* $OpenBSD: if_bwi_cardbus.c,v 1.17 2024/05/24 06:26:47 jsg Exp $ */ 2 3/* 4 * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org> 5 * Copyright (c) 2006 Claudio Jeker <claudio@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* 21 * Cardbus front-end for the Broadcom AirForce 22 */ 23 24#include "bpfilter.h" 25 26#include <sys/param.h> 27#include <sys/systm.h> 28#include <sys/timeout.h> 29 30#include <net/if.h> 31#include <net/if_media.h> 32 33#include <netinet/in.h> 34#include <netinet/if_ether.h> 35 36#include <net80211/ieee80211_var.h> 37#include <net80211/ieee80211_amrr.h> 38#include <net80211/ieee80211_radiotap.h> 39 40#include <dev/pci/pcireg.h> 41#include <dev/pci/pcivar.h> 42#include <dev/pci/pcidevs.h> 43 44#include <dev/cardbus/cardbusvar.h> 45 46#include <dev/ic/bwivar.h> 47 48struct bwi_cardbus_softc { 49 struct bwi_softc csc_bwi; 50 51 /* cardbus specific goo */ 52 cardbus_devfunc_t csc_ct; 53 pcitag_t csc_tag; 54 void *csc_ih; 55 56 bus_size_t csc_mapsize; 57 pcireg_t csc_bar_val; 58 int csc_intrline; 59 pci_chipset_tag_t csc_pc; 60}; 61 62int bwi_cardbus_match(struct device *, void *, void*); 63void bwi_cardbus_attach(struct device *, struct device *, void *); 64int bwi_cardbus_detach(struct device *, int); 65void bwi_cardbus_setup(struct bwi_cardbus_softc *); 66int bwi_cardbus_enable(struct bwi_softc *); 67void bwi_cardbus_disable(struct bwi_softc *); 68void bwi_cardbus_conf_write(void *, uint32_t, uint32_t); 69uint32_t bwi_cardbus_conf_read(void *, uint32_t); 70 71const struct cfattach bwi_cardbus_ca = { 72 sizeof (struct bwi_cardbus_softc), bwi_cardbus_match, 73 bwi_cardbus_attach, bwi_cardbus_detach 74}; 75 76static const struct pci_matchid bwi_cardbus_devices[] = { 77 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4303 }, 78 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4306 }, 79 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4306_2 }, 80 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4307 }, 81 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4309 }, 82 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4318 }, 83 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM4319 }, 84 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM43XG } 85}; 86 87int 88bwi_cardbus_match(struct device *parent, void *match, void *aux) 89{ 90 return (cardbus_matchbyid(aux, bwi_cardbus_devices, 91 sizeof (bwi_cardbus_devices) / sizeof (bwi_cardbus_devices[0]))); 92} 93 94void 95bwi_cardbus_attach(struct device *parent, struct device *self, void *aux) 96{ 97 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self; 98 struct cardbus_attach_args *ca = aux; 99 struct bwi_softc *sc = &csc->csc_bwi; 100 cardbus_devfunc_t ct = ca->ca_ct; 101 pcireg_t reg; 102 bus_addr_t base; 103 int error; 104 105 sc->sc_dmat = ca->ca_dmat; 106 csc->csc_ct = ct; 107 csc->csc_tag = ca->ca_tag; 108 csc->csc_intrline = ca->ca_intrline; 109 csc->csc_pc = ca->ca_pc; 110 111 /* power management hooks */ 112 sc->sc_enable = bwi_cardbus_enable; 113 sc->sc_disable = bwi_cardbus_disable; 114 //sc->sc_power = bwi_cardbus_power; 115 116 /* map control/status registers */ 117 error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, 118 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_mem_bt, 119 &sc->sc_mem_bh, &base, &csc->csc_mapsize); 120 if (error != 0) { 121 printf(": can't map mem space\n"); 122 return; 123 } 124 csc->csc_bar_val = base | PCI_MAPREG_TYPE_MEM; 125 126 /* set up the PCI configuration registers */ 127 bwi_cardbus_setup(csc); 128 129 printf(": irq %d", csc->csc_intrline); 130 131 /* we need to access Cardbus config space from the driver */ 132 sc->sc_conf_read = bwi_cardbus_conf_read; 133 sc->sc_conf_write = bwi_cardbus_conf_write; 134 135 reg = (sc->sc_conf_read)(sc, PCI_SUBSYS_ID_REG); 136 137 sc->sc_pci_revid = PCI_REVISION(ca->ca_class); 138 sc->sc_pci_did = PCI_PRODUCT(ca->ca_id); 139 sc->sc_pci_subvid = PCI_VENDOR(reg); 140 sc->sc_pci_subdid = PCI_PRODUCT(reg); 141 142 error = bwi_attach(sc); 143 if (error != 0) 144 bwi_cardbus_detach(&sc->sc_dev, 0); 145 146 Cardbus_function_disable(ct); 147} 148 149int 150bwi_cardbus_detach(struct device *self, int flags) 151{ 152 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self; 153 struct bwi_softc *sc = &csc->csc_bwi; 154 cardbus_devfunc_t ct = csc->csc_ct; 155 cardbus_chipset_tag_t cc = ct->ct_cc; 156 cardbus_function_tag_t cf = ct->ct_cf; 157 int error; 158 159 error = bwi_detach(sc); 160 if (error != 0) 161 return (error); 162 163 /* unhook the interrupt handler */ 164 if (csc->csc_ih != NULL) { 165 cardbus_intr_disestablish(cc, cf, csc->csc_ih); 166 csc->csc_ih = NULL; 167 } 168 169 /* release bus space and close window */ 170 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_mem_bt, 171 sc->sc_mem_bh, csc->csc_mapsize); 172 173 return (0); 174} 175 176void 177bwi_cardbus_setup(struct bwi_cardbus_softc *csc) 178{ 179 cardbus_devfunc_t ct = csc->csc_ct; 180 cardbus_chipset_tag_t cc = ct->ct_cc; 181 pci_chipset_tag_t pc = csc->csc_pc; 182 cardbus_function_tag_t cf = ct->ct_cf; 183 pcireg_t reg; 184 185 /* program the BAR */ 186 pci_conf_write(pc, csc->csc_tag, CARDBUS_BASE0_REG, 187 csc->csc_bar_val); 188 189 /* make sure the right access type is on the cardbus bridge */ 190 (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 191 (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 192 193 /* enable the appropriate bits in the PCI CSR */ 194 reg = pci_conf_read(pc, csc->csc_tag, 195 PCI_COMMAND_STATUS_REG); 196 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 197 pci_conf_write(pc, csc->csc_tag, PCI_COMMAND_STATUS_REG, 198 reg); 199} 200 201int 202bwi_cardbus_enable(struct bwi_softc *sc) 203{ 204 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc; 205 cardbus_devfunc_t ct = csc->csc_ct; 206 cardbus_chipset_tag_t cc = ct->ct_cc; 207 cardbus_function_tag_t cf = ct->ct_cf; 208 209 /* power on the socket */ 210 Cardbus_function_enable(ct); 211 212 /* setup the PCI configuration registers */ 213 bwi_cardbus_setup(csc); 214 215 /* map and establish the interrupt handler */ 216 csc->csc_ih = cardbus_intr_establish(cc, cf, csc->csc_intrline, IPL_NET, 217 bwi_intr, sc, sc->sc_dev.dv_xname); 218 if (csc->csc_ih == NULL) { 219 printf("%s: could not establish interrupt at %d\n", 220 sc->sc_dev.dv_xname, csc->csc_intrline); 221 Cardbus_function_disable(ct); 222 return (1); 223 } 224 225 return (0); 226} 227 228void 229bwi_cardbus_disable(struct bwi_softc *sc) 230{ 231 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc; 232 cardbus_devfunc_t ct = csc->csc_ct; 233 cardbus_chipset_tag_t cc = ct->ct_cc; 234 cardbus_function_tag_t cf = ct->ct_cf; 235 236 /* unhook the interrupt handler */ 237 cardbus_intr_disestablish(cc, cf, csc->csc_ih); 238 csc->csc_ih = NULL; 239 240 /* power down the socket */ 241 Cardbus_function_disable(ct); 242} 243 244void 245bwi_cardbus_conf_write(void *self, uint32_t reg, uint32_t val) 246{ 247 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self; 248 pci_chipset_tag_t pc = csc->csc_pc; 249 250 pci_conf_write(pc, csc->csc_tag, reg, val); 251} 252 253uint32_t 254bwi_cardbus_conf_read(void *self, uint32_t reg) 255{ 256 struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self; 257 pci_chipset_tag_t pc = csc->csc_pc; 258 259 return (pci_conf_read(pc, csc->csc_tag, reg)); 260} 261