/* $OpenBSD: if_pgt_cardbus.c,v 1.5 2006/10/12 16:35:52 grange Exp $ */ /* * Copyright (c) 2006 Marcus Glocker * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * CardBus front-end for the PrismGT */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct pgt_cardbus_softc { struct pgt_softc sc_pgt; cardbus_devfunc_t sc_ct; cardbustag_t sc_tag; int sc_intrline; void *sc_ih; bus_size_t sc_mapsize; pcireg_t sc_bar0_val; }; int pgt_cardbus_match(struct device *, void *, void *); void pgt_cardbus_attach(struct device *, struct device *, void *); int pgt_cardbus_detach(struct device *, int); int pgt_cardbus_enable(struct pgt_softc *); void pgt_cardbus_disable(struct pgt_softc *); void pgt_cardbus_power(struct pgt_softc *, int); void pgt_cardbus_setup(struct pgt_cardbus_softc *); struct cfattach pgt_cardbus_ca = { sizeof(struct pgt_cardbus_softc), pgt_cardbus_match, pgt_cardbus_attach, pgt_cardbus_detach }; const struct cardbus_matchid pgt_cardbus_devices[] = { { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3877 }, { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3890 } }; int pgt_cardbus_match(struct device *parent, void *match, void *aux) { return (cardbus_matchbyid((struct cardbus_attach_args *)aux, pgt_cardbus_devices, sizeof(pgt_cardbus_devices) / sizeof(pgt_cardbus_devices[0]))); } void pgt_cardbus_attach(struct device *parent, struct device *self, void *aux) { struct pgt_cardbus_softc *csc = (struct pgt_cardbus_softc *)self; struct pgt_softc *sc = &csc->sc_pgt; struct cardbus_attach_args *ca = aux; cardbus_devfunc_t ct = ca->ca_ct; bus_addr_t base; int error; sc->sc_dmat = ca->ca_dmat; csc->sc_ct = ct; csc->sc_tag = ca->ca_tag; csc->sc_intrline = ca->ca_intrline; /* power management hooks */ sc->sc_enable = pgt_cardbus_enable; sc->sc_disable = pgt_cardbus_disable; sc->sc_power = pgt_cardbus_power; /* remember chipset */ if (CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTERSIL_ISL3877) sc->sc_flags |= SC_ISL3877; /* map control / status registers */ error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_iotag, &sc->sc_iohandle, &base, &csc->sc_mapsize); if (error != 0) { printf(": could not map memory space\n"); return; } csc->sc_bar0_val = base | CARDBUS_MAPREG_TYPE_MEM; /* disable all interrupts */ bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN, 0); (void)bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN); DELAY(PGT_WRITEIO_DELAY); /* set up the PCI configuration registers */ pgt_cardbus_setup(csc); printf(": irq %d\n", csc->sc_intrline); if (rootvp == NULL) mountroothook_establish(pgt_attach, sc); else pgt_attach(sc); } int pgt_cardbus_detach(struct device *self, int flags) { struct pgt_cardbus_softc *csc = (struct pgt_cardbus_softc *)self; struct pgt_softc *sc = &csc->sc_pgt; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; int error; error = pgt_detach(sc); if (error != 0) return (error); /* unhook the interrupt handler */ if (csc->sc_ih != NULL) { cardbus_intr_disestablish(cc, cf, csc->sc_ih); csc->sc_ih = NULL; } /* release bus space and close window */ Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_iotag, sc->sc_iohandle, csc->sc_mapsize); return (0); } int pgt_cardbus_enable(struct pgt_softc *sc) { struct pgt_cardbus_softc *csc = (struct pgt_cardbus_softc *)sc; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; /* power on the socket */ Cardbus_function_enable(ct); /* setup the PCI configuration registers */ pgt_cardbus_setup(csc); /* map and establish the interrupt handler */ csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, pgt_intr, sc, sc->sc_dev.dv_xname); if (csc->sc_ih == NULL) { printf("%s: could not establish interrupt at %d\n", sc->sc_dev.dv_xname, csc->sc_intrline); Cardbus_function_disable(ct); return (1); } return (0); } void pgt_cardbus_disable(struct pgt_softc *sc) { struct pgt_cardbus_softc *csc = (struct pgt_cardbus_softc *)sc; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; /* unhook the interrupt handler */ cardbus_intr_disestablish(cc, cf, csc->sc_ih); csc->sc_ih = NULL; /* power down the socket */ Cardbus_function_disable(ct); } void pgt_cardbus_power(struct pgt_softc *sc, int why) { if (why == PWR_RESUME) if (sc->sc_enable != NULL) (*sc->sc_enable)(sc); if (why == PWR_SUSPEND) if (sc->sc_disable != NULL) (*sc->sc_disable)(sc); } void pgt_cardbus_setup(struct pgt_cardbus_softc *csc) { cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; pcireg_t reg; /* program the BAR */ cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG, csc->sc_bar0_val); /* make sure the right access type is on the cardbus bridge */ (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); /* enable the appropriate bits in the PCI CSR */ reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG); reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE; cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, reg); }