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- /* $OpenBSD: if_pgt_cardbus.c,v 1.16 2015/03/14 03:38:47 jsg Exp $ */
- /*
- * Copyright (c) 2006 Marcus Glocker <mglocker@openbsd.org>
- *
- * 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 <sys/param.h>
- #include <sys/sockio.h>
- #include <sys/mbuf.h>
- #include <sys/kernel.h>
- #include <sys/socket.h>
- #include <sys/systm.h>
- #include <sys/malloc.h>
- #include <sys/timeout.h>
- #include <sys/device.h>
- #include <machine/bus.h>
- #include <net/if.h>
- #include <net/if_dl.h>
- #include <net/if_media.h>
- #include <netinet/in.h>
- #include <netinet/if_ether.h>
- #include <net80211/ieee80211_var.h>
- #include <net80211/ieee80211_radiotap.h>
- #include <dev/ic/pgtreg.h>
- #include <dev/ic/pgtvar.h>
- #include <dev/pci/pcireg.h>
- #include <dev/pci/pcivar.h>
- #include <dev/pci/pcidevs.h>
- #include <dev/cardbus/cardbusvar.h>
- struct pgt_cardbus_softc {
- struct pgt_softc sc_pgt;
- cardbus_devfunc_t sc_ct;
- pcitag_t sc_tag;
- int sc_intrline;
- void *sc_ih;
- bus_size_t sc_mapsize;
- pcireg_t sc_bar0_val;
- pci_chipset_tag_t sc_pc;
- };
- 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 pci_matchid pgt_cardbus_devices[] = {
- { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3877 },
- { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3890 },
- { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRWE154G72 }
- };
- 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;
- csc->sc_pc = ca->ca_pc;
- /* power management hooks */
- sc->sc_enable = pgt_cardbus_enable;
- sc->sc_disable = pgt_cardbus_disable;
- sc->sc_power = pgt_cardbus_power;
- /* remember chipset */
- if (PCI_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(": can't map mem space\n");
- return;
- }
- csc->sc_bar0_val = base | PCI_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 == DVACT_RESUME)
- if (sc->sc_enable != NULL)
- (*sc->sc_enable)(sc);
- if (why == DVACT_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;
- pci_chipset_tag_t pc = csc->sc_pc;
- cardbus_function_tag_t cf = ct->ct_cf;
- pcireg_t reg;
- /* program the BAR */
- pci_conf_write(pc, 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 = pci_conf_read(pc, csc->sc_tag,
- PCI_COMMAND_STATUS_REG);
- reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
- pci_conf_write(pc, csc->sc_tag, PCI_COMMAND_STATUS_REG,
- reg);
- }
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