/* $NetBSD: if_ral_cardbus.c,v 1.26 2022/09/25 17:33:19 thorpej Exp $ */ /* $OpenBSD: if_ral_cardbus.c,v 1.6 2006/01/09 20:03:31 damien Exp $ */ /*- * Copyright (c) 2005, 2006 * Damien Bergamini * * 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 Ralink RT2560/RT2561/RT2561S/RT2661 driver. */ #include __KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.26 2022/09/25 17:33:19 thorpej Exp $"); #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 static struct ral_opns { int (*attach)(void *, int); int (*detach)(void *); int (*intr)(void *); } ral_rt2560_opns = { rt2560_attach, rt2560_detach, rt2560_intr }, ral_rt2661_opns = { rt2661_attach, rt2661_detach, rt2661_intr }; struct ral_cardbus_softc { union { struct rt2560_softc sc_rt2560; struct rt2661_softc sc_rt2661; } u; #define sc_sc u.sc_rt2560 /* cardbus specific goo */ struct ral_opns *sc_opns; cardbus_devfunc_t sc_ct; pcitag_t sc_tag; void *sc_ih; bus_size_t sc_mapsize; pcireg_t sc_bar_val; }; int ral_cardbus_match(device_t, cfdata_t, void *); void ral_cardbus_attach(device_t, device_t, void *); int ral_cardbus_detach(device_t, int); CFATTACH_DECL_NEW(ral_cardbus, sizeof (struct ral_cardbus_softc), ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); int ral_cardbus_enable(struct rt2560_softc *); void ral_cardbus_disable(struct rt2560_softc *); void ral_cardbus_power(struct rt2560_softc *, int); void ral_cardbus_setup(struct ral_cardbus_softc *); int ral_cardbus_match(device_t parent, cfdata_t cfdata, void *aux) { struct cardbus_attach_args *ca = aux; if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { switch (PCI_PRODUCT(ca->ca_id)) { case PCI_PRODUCT_RALINK_RT2560: case PCI_PRODUCT_RALINK_RT2561: case PCI_PRODUCT_RALINK_RT2561S: case PCI_PRODUCT_RALINK_RT2661: return 1; default: return 0; } } return 0; } void ral_cardbus_attach(device_t parent, device_t self, void *aux) { struct ral_cardbus_softc *csc = device_private(self); struct rt2560_softc *sc = &csc->sc_sc; struct cardbus_attach_args *ca = aux; cardbus_devfunc_t ct = ca->ca_ct; char devinfo[256]; bus_addr_t base; int error, revision; pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); revision = PCI_REVISION(ca->ca_class); aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); csc->sc_opns = (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? &ral_rt2560_opns : &ral_rt2661_opns; sc->sc_dev = self; sc->sc_dmat = ca->ca_dmat; csc->sc_ct = ct; csc->sc_tag = ca->ca_tag; /* power management hooks */ sc->sc_enable = ral_cardbus_enable; sc->sc_disable = ral_cardbus_disable; /* map control/status registers */ error = Cardbus_mapreg_map(ct, PCI_BAR0, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, &csc->sc_mapsize); if (error != 0) { aprint_error(": could not map memory space\n"); return; } csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; /* set up the PCI configuration registers */ ral_cardbus_setup(csc); (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); Cardbus_function_disable(ct); } int ral_cardbus_detach(device_t self, int flags) { struct ral_cardbus_softc *csc = device_private(self); struct rt2560_softc *sc = &csc->sc_sc; cardbus_devfunc_t ct = csc->sc_ct; int error; error = (*csc->sc_opns->detach)(sc); if (error != 0) return error; /* unhook the interrupt handler */ if (csc->sc_ih != NULL) { Cardbus_intr_disestablish(ct, csc->sc_ih); csc->sc_ih = NULL; } /* release bus space and close window */ Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, csc->sc_mapsize); return 0; } int ral_cardbus_enable(struct rt2560_softc *sc) { struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; cardbus_devfunc_t ct = csc->sc_ct; /* power on the socket */ Cardbus_function_enable(ct); /* setup the PCI configuration registers */ ral_cardbus_setup(csc); /* map and establish the interrupt handler */ csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, csc->sc_opns->intr, sc); if (csc->sc_ih == NULL) { aprint_error_dev(sc->sc_dev, "could not establish interrupt\n"); Cardbus_function_disable(ct); return 1; } return 0; } void ral_cardbus_disable(struct rt2560_softc *sc) { struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; cardbus_devfunc_t ct = csc->sc_ct; /* unhook the interrupt handler */ Cardbus_intr_disestablish(ct, csc->sc_ih); csc->sc_ih = NULL; /* power down the socket */ Cardbus_function_disable(ct); } void ral_cardbus_setup(struct ral_cardbus_softc *csc) { cardbus_devfunc_t ct = csc->sc_ct; pcireg_t reg; /* program the BAR */ Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); /* enable the appropriate bits in the PCI CSR */ reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); }