Annotation of sys/dev/cardbus/if_dc_cardbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_dc_cardbus.c,v 1.24 2007/05/08 00:04:47 deraadt Exp $ */
! 2:
! 3: #include <sys/param.h>
! 4: #include <sys/systm.h>
! 5: #include <sys/mbuf.h>
! 6: #include <sys/socket.h>
! 7: #include <sys/ioctl.h>
! 8: #include <sys/errno.h>
! 9: #include <sys/malloc.h>
! 10: #include <sys/kernel.h>
! 11: #include <sys/proc.h>
! 12: #include <sys/device.h>
! 13:
! 14: #include <net/if.h>
! 15: #include <net/if_dl.h>
! 16: #include <net/if_types.h>
! 17: #include <net/if_media.h>
! 18:
! 19: #include <netinet/in.h>
! 20: #include <netinet/if_ether.h>
! 21:
! 22: #include <dev/mii/mii.h>
! 23: #include <dev/mii/miivar.h>
! 24:
! 25: #include <machine/bus.h>
! 26:
! 27: #include <dev/pci/pcivar.h>
! 28: #include <dev/pci/pcireg.h>
! 29: #include <dev/pci/pcidevs.h>
! 30:
! 31: #include <dev/cardbus/cardbusvar.h>
! 32:
! 33: #include <dev/ic/dcreg.h>
! 34:
! 35: /* PCI configuration regs */
! 36: #define PCI_CBIO 0x10
! 37: #define PCI_CBMEM 0x14
! 38: #define PCI_CFDA 0x40
! 39:
! 40: #define DC_CFDA_SUSPEND 0x80000000
! 41: #define DC_CFDA_STANDBY 0x40000000
! 42:
! 43: struct dc_cardbus_softc {
! 44: struct dc_softc sc_dc;
! 45: int sc_intrline;
! 46:
! 47: cardbus_devfunc_t sc_ct;
! 48: cardbustag_t sc_tag;
! 49: bus_size_t sc_mapsize;
! 50: int sc_actype;
! 51: };
! 52:
! 53: int dc_cardbus_match(struct device *, void *, void *);
! 54: void dc_cardbus_attach(struct device *, struct device *,void *);
! 55: int dc_cardbus_detach(struct device *, int);
! 56:
! 57: void dc_cardbus_setup(struct dc_cardbus_softc *csc);
! 58:
! 59: struct cfattach dc_cardbus_ca = {
! 60: sizeof(struct dc_cardbus_softc), dc_cardbus_match, dc_cardbus_attach,
! 61: dc_cardbus_detach
! 62: };
! 63:
! 64: const struct cardbus_matchid dc_cardbus_devices[] = {
! 65: { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
! 66: { PCI_VENDOR_XIRCOM, PCI_PRODUCT_XIRCOM_X3201_3_21143 },
! 67: { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN985 },
! 68: { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
! 69: { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500 },
! 70: { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500MX },
! 71: { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_PCM200 },
! 72: { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DRP32TXD },
! 73: { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCMPC200 },
! 74: { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCM200 },
! 75: { PCI_VENDOR_HAWKING, PCI_PRODUCT_HAWKING_PN672TX },
! 76: { PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN120 },
! 77: };
! 78:
! 79: int
! 80: dc_cardbus_match(parent, match, aux)
! 81: struct device *parent;
! 82: void *match, *aux;
! 83: {
! 84: return (cardbus_matchbyid((struct cardbus_attach_args *)aux,
! 85: dc_cardbus_devices,
! 86: sizeof(dc_cardbus_devices)/sizeof(dc_cardbus_devices[0])));
! 87: }
! 88:
! 89: void
! 90: dc_cardbus_attach(parent, self, aux)
! 91: struct device *parent, *self;
! 92: void *aux;
! 93: {
! 94: struct dc_cardbus_softc *csc = (struct dc_cardbus_softc *)self;
! 95: struct dc_softc *sc = &csc->sc_dc;
! 96: struct cardbus_attach_args *ca = aux;
! 97: struct cardbus_devfunc *ct = ca->ca_ct;
! 98: cardbus_chipset_tag_t cc = ct->ct_cc;
! 99: cardbus_function_tag_t cf = ct->ct_cf;
! 100: cardbusreg_t reg;
! 101: bus_addr_t addr;
! 102:
! 103: sc->sc_dmat = ca->ca_dmat;
! 104: csc->sc_ct = ct;
! 105: csc->sc_tag = ca->ca_tag;
! 106:
! 107: Cardbus_function_enable(ct);
! 108:
! 109: if (Cardbus_mapreg_map(ct, PCI_CBIO,
! 110: PCI_MAPREG_TYPE_IO, 0, &sc->dc_btag, &sc->dc_bhandle, &addr,
! 111: &csc->sc_mapsize) == 0) {
! 112:
! 113: csc->sc_actype = CARDBUS_IO_ENABLE;
! 114: } else if (Cardbus_mapreg_map(ct, PCI_CBMEM,
! 115: PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
! 116: &sc->dc_btag, &sc->dc_bhandle, &addr, &csc->sc_mapsize) == 0) {
! 117: csc->sc_actype = CARDBUS_MEM_ENABLE;
! 118: } else {
! 119: printf(": can\'t map device registers\n");
! 120: return;
! 121: }
! 122:
! 123: csc->sc_intrline = ca->ca_intrline;
! 124:
! 125: sc->dc_cachesize = cardbus_conf_read(cc, cf, ca->ca_tag, DC_PCI_CFLT)
! 126: & 0xFF;
! 127:
! 128: dc_cardbus_setup(csc);
! 129:
! 130: /* Get the eeprom width, but XIRCOM has no eeprom */
! 131: if (!(PCI_VENDOR(ca->ca_id) == PCI_VENDOR_XIRCOM &&
! 132: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143))
! 133: dc_eeprom_width(sc);
! 134:
! 135: switch (PCI_VENDOR(ca->ca_id)) {
! 136: case PCI_VENDOR_DEC:
! 137: if (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_DEC_21142) {
! 138: sc->dc_type = DC_TYPE_21143;
! 139: sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
! 140: sc->dc_flags |= DC_REDUCED_MII_POLL;
! 141: dc_read_srom(sc, sc->dc_romwidth);
! 142: dc_parse_21143_srom(sc);
! 143: }
! 144: break;
! 145: case PCI_VENDOR_XIRCOM:
! 146: if (PCI_PRODUCT(ca->ca_id) ==
! 147: PCI_PRODUCT_XIRCOM_X3201_3_21143) {
! 148: sc->dc_type = DC_TYPE_XIRCOM;
! 149: sc->dc_flags |= DC_TX_INTR_ALWAYS|DC_TX_COALESCE |
! 150: DC_TX_ALIGN;
! 151: sc->dc_pmode = DC_PMODE_MII;
! 152:
! 153: bcopy(ca->ca_cis.funce.network.netid,
! 154: &sc->sc_arpcom.ac_enaddr,
! 155: sizeof sc->sc_arpcom.ac_enaddr);
! 156: }
! 157: break;
! 158: case PCI_VENDOR_ADMTEK:
! 159: case PCI_VENDOR_ACCTON:
! 160: case PCI_VENDOR_ABOCOM:
! 161: case PCI_VENDOR_DLINK:
! 162: case PCI_VENDOR_LINKSYS:
! 163: case PCI_VENDOR_HAWKING:
! 164: case PCI_VENDOR_MICROSOFT:
! 165: if (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADMTEK_AN985 ||
! 166: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ACCTON_EN2242 ||
! 167: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ABOCOM_FE2500 ||
! 168: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ABOCOM_FE2500MX ||
! 169: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ABOCOM_PCM200 ||
! 170: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_DLINK_DRP32TXD ||
! 171: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_LINKSYS_PCMPC200 ||
! 172: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_LINKSYS_PCM200 ||
! 173: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_HAWKING_PN672TX ||
! 174: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_MICROSOFT_MN120) {
! 175: sc->dc_type = DC_TYPE_AN983;
! 176: sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_ADMTEK_WAR |
! 177: DC_64BIT_HASH;
! 178: sc->dc_pmode = DC_PMODE_MII;
! 179: /* Don't read SROM for - auto-loaded on reset */
! 180: }
! 181: break;
! 182: default:
! 183: printf(": unknown device\n");
! 184: return;
! 185: }
! 186:
! 187: /*
! 188: * set latency timer, do we really need this?
! 189: */
! 190: reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG);
! 191: if (PCI_LATTIMER(reg) < 0x20) {
! 192: reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
! 193: reg |= (0x20 << PCI_LATTIMER_SHIFT);
! 194: cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg);
! 195: }
! 196:
! 197: sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET,
! 198: dc_intr, csc, sc->sc_dev.dv_xname);
! 199: if (sc->sc_ih == NULL) {
! 200: printf(": can't establish interrupt at %d\n",
! 201: ca->ca_intrline);
! 202: return;
! 203: } else
! 204: printf(" irq %d", ca->ca_intrline);
! 205:
! 206: dc_reset(sc);
! 207:
! 208: sc->dc_revision = PCI_REVISION(ca->ca_class);
! 209: dc_attach(sc);
! 210: }
! 211:
! 212: int
! 213: dc_detach(sc)
! 214: struct dc_softc *sc;
! 215: {
! 216: struct ifnet *ifp = &sc->sc_arpcom.ac_if;
! 217:
! 218: if (LIST_FIRST(&sc->sc_mii.mii_phys) != NULL)
! 219: mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
! 220:
! 221: if (sc->dc_srom)
! 222: free(sc->dc_srom, M_DEVBUF);
! 223:
! 224: timeout_del(&sc->dc_tick_tmo);
! 225:
! 226: ether_ifdetach(ifp);
! 227: if_detach(ifp);
! 228:
! 229: if (sc->sc_dhook != NULL)
! 230: shutdownhook_disestablish(sc->sc_dhook);
! 231: if (sc->sc_pwrhook != NULL)
! 232: powerhook_disestablish(sc->sc_pwrhook);
! 233:
! 234: return (0);
! 235: }
! 236:
! 237: int
! 238: dc_cardbus_detach(self, flags)
! 239: struct device *self;
! 240: int flags;
! 241: {
! 242: struct dc_cardbus_softc *csc = (struct dc_cardbus_softc *)self;
! 243: struct dc_softc *sc = &csc->sc_dc;
! 244: struct cardbus_devfunc *ct = csc->sc_ct;
! 245: int rv = 0;
! 246:
! 247: rv = dc_detach(sc);
! 248: if (rv)
! 249: return (rv);
! 250:
! 251: cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
! 252:
! 253: /* unmap cardbus resources */
! 254: Cardbus_mapreg_unmap(ct,
! 255: csc->sc_actype == CARDBUS_IO_ENABLE ? PCI_CBIO : PCI_CBMEM,
! 256: sc->dc_btag, sc->dc_bhandle, csc->sc_mapsize);
! 257:
! 258: return (rv);
! 259: }
! 260:
! 261: void
! 262: dc_cardbus_setup(csc)
! 263: struct dc_cardbus_softc *csc;
! 264: {
! 265: cardbus_devfunc_t ct = csc->sc_ct;
! 266: cardbus_chipset_tag_t cc = ct->ct_cc;
! 267: cardbus_function_tag_t cf = ct->ct_cf;
! 268: cardbusreg_t reg;
! 269: int r;
! 270:
! 271: /* wakeup the card if needed */
! 272: reg = cardbus_conf_read(cc, cf, csc->sc_tag, PCI_CFDA);
! 273: if (reg | (DC_CFDA_SUSPEND|DC_CFDA_STANDBY)) {
! 274: cardbus_conf_write(cc, cf, csc->sc_tag, PCI_CFDA,
! 275: reg & ~(DC_CFDA_SUSPEND|DC_CFDA_STANDBY));
! 276: }
! 277:
! 278: if (cardbus_get_capability(cc, cf, csc->sc_tag, PCI_CAP_PWRMGMT, &r,
! 279: 0)) {
! 280: r = cardbus_conf_read(cc, cf, csc->sc_tag, r + 4) & 3;
! 281: if (r) {
! 282: printf("%s: awakening from state D%d\n",
! 283: csc->sc_dc.sc_dev.dv_xname, r);
! 284: cardbus_conf_write(cc, cf, csc->sc_tag, r + 4, 0);
! 285: }
! 286: }
! 287:
! 288: (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_actype);
! 289: (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
! 290:
! 291: reg = cardbus_conf_read(cc, cf, csc->sc_tag, PCI_COMMAND_STATUS_REG);
! 292: reg |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
! 293: PCI_COMMAND_MASTER_ENABLE;
! 294: cardbus_conf_write(cc, cf, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg);
! 295: reg = cardbus_conf_read(cc, cf, csc->sc_tag, PCI_COMMAND_STATUS_REG);
! 296: }
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