/* $NetBSD: if_ex_cardbus.c,v 1.56 2016/07/07 06:55:41 msaitoh Exp $ */ /* * Copyright (c) 1998 and 1999 * HAYAKAWA Koichi. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY HAYAKAWA KOICHI ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL TAKESHI OHASHI OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * CardBus specific routines for 3Com 3C575-family CardBus ethernet adapter */ #include __KERNEL_RCSID(0, "$NetBSD: if_ex_cardbus.c,v 1.56 2016/07/07 06:55:41 msaitoh Exp $"); /* #define EX_DEBUG 4 */ /* define to report information for debugging */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined DEBUG && !defined EX_DEBUG #define EX_DEBUG #endif #if defined EX_DEBUG #define DPRINTF(a) printf a #else #define DPRINTF(a) #endif #define CARDBUS_3C575BTX_FUNCSTAT_PCIREG PCI_BAR2 /* means 0x18 */ #define EX_CB_INTR 4 /* intr acknowledge reg. CardBus only */ #define EX_CB_INTR_ACK 0x8000 /* intr acknowledge bit */ int ex_cardbus_match(device_t, cfdata_t, void *); void ex_cardbus_attach(device_t, device_t, void *); int ex_cardbus_detach(device_t, int); void ex_cardbus_intr_ack(struct ex_softc *); int ex_cardbus_enable(struct ex_softc *); void ex_cardbus_disable(struct ex_softc *); struct ex_cardbus_softc { struct ex_softc sc_softc; cardbus_devfunc_t sc_ct; uint8_t sc_cardbus_flags; #define EX_REATTACH 0x01 #define EX_ABSENT 0x02 uint8_t sc_cardtype; #define EX_CB_BOOMERANG 1 #define EX_CB_CYCLONE 2 /* CardBus function status space. 575B requests it. */ bus_space_tag_t sc_funct; bus_space_handle_t sc_funch; bus_size_t sc_funcsize; bus_size_t sc_mapsize; /* the size of mapped bus space region */ pcitag_t sc_tag; pcireg_t sc_csr; int sc_bar_reg; /* which BAR to use */ pcireg_t sc_bar_val; /* value of the BAR */ int sc_bar_reg1; /* which BAR to use */ pcireg_t sc_bar_val1; /* value of the BAR */ }; CFATTACH_DECL3_NEW(ex_cardbus, sizeof(struct ex_cardbus_softc), ex_cardbus_match, ex_cardbus_attach, ex_cardbus_detach, ex_activate, NULL, NULL, DVF_DETACH_SHUTDOWN); const struct ex_cardbus_product { uint32_t ecp_prodid; /* CardBus product ID */ int ecp_flags; /* initial softc flags */ pcireg_t ecp_csr; /* PCI CSR flags */ int ecp_cardtype; /* card type */ const char *ecp_name; /* device name */ } ex_cardbus_products[] = { { PCI_PRODUCT_3COM_3C575TX, EX_CONF_MII | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_BOOMERANG, "3c575-TX Ethernet" }, { PCI_PRODUCT_3COM_3C575BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INV_LED_POLARITY | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_CYCLONE, "3c575B-TX Ethernet" }, { PCI_PRODUCT_3COM_3C575CTX, EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_CYCLONE, "3c575CT Ethernet" }, { PCI_PRODUCT_3COM_3C656_E, EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT | EX_CONF_INV_LED_POLARITY, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_CYCLONE, "3c656-TX Ethernet" }, { PCI_PRODUCT_3COM_3C656B_E, EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT | EX_CONF_INV_LED_POLARITY, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_CYCLONE, "3c656B-TX Ethernet" }, { PCI_PRODUCT_3COM_3C656C_E, EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE, EX_CB_CYCLONE, "3c656C-TX Ethernet" }, { 0, 0, 0, 0, NULL }, }; void ex_cardbus_setup(struct ex_cardbus_softc *); const struct ex_cardbus_product *ex_cardbus_lookup (const struct cardbus_attach_args *); const struct ex_cardbus_product * ex_cardbus_lookup(const struct cardbus_attach_args *ca) { const struct ex_cardbus_product *ecp; if (PCI_VENDOR(ca->ca_id) != PCI_VENDOR_3COM) return (NULL); for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) if (PCI_PRODUCT(ca->ca_id) == ecp->ecp_prodid) return (ecp); return (NULL); } int ex_cardbus_match(device_t parent, cfdata_t cf, void *aux) { struct cardbus_attach_args *ca = aux; if (ex_cardbus_lookup(ca) != NULL) return (1); return (0); } void ex_cardbus_attach(device_t parent, device_t self, void *aux) { struct ex_cardbus_softc *csc = device_private(self); struct ex_softc *sc = &csc->sc_softc; struct cardbus_attach_args *ca = aux; cardbus_devfunc_t ct = ca->ca_ct; const struct ex_cardbus_product *ecp; bus_addr_t adr, adr1; sc->sc_dev = self; sc->sc_dmat = ca->ca_dmat; csc->sc_ct = ca->ca_ct; csc->sc_tag = ca->ca_tag; ecp = ex_cardbus_lookup(ca); if (ecp == NULL) { printf("\n"); panic("ex_cardbus_attach: impossible"); } aprint_normal(": 3Com %s\n", ecp->ecp_name); sc->ex_conf = ecp->ecp_flags; csc->sc_cardtype = ecp->ecp_cardtype; csc->sc_csr = ecp->ecp_csr; if (Cardbus_mapreg_map(ct, PCI_BAR0, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot, &sc->sc_ioh, &adr, &csc->sc_mapsize) == 0) { csc->sc_bar_reg = PCI_BAR0; csc->sc_bar_val = adr | PCI_MAPREG_TYPE_IO; if (csc->sc_cardtype == EX_CB_CYCLONE) { /* Map CardBus function status window. */ if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, PCI_MAPREG_TYPE_MEM, 0, &csc->sc_funct, &csc->sc_funch, &adr1, &csc->sc_funcsize) == 0) { csc->sc_bar_reg1 = CARDBUS_3C575BTX_FUNCSTAT_PCIREG; csc->sc_bar_val1 = adr1 | PCI_MAPREG_TYPE_MEM; } else { aprint_error_dev(self, "unable to map function status window\n"); return; } /* Setup interrupt acknowledge hook */ sc->intr_ack = ex_cardbus_intr_ack; } } else { aprint_naive(": can't map i/o space\n"); return; } /* Power management hooks. */ sc->enable = ex_cardbus_enable; sc->disable = ex_cardbus_disable; /* * Handle power management nonsense and * initialize the configuration registers. */ ex_cardbus_setup(csc); ex_config(sc); if (csc->sc_cardtype == EX_CB_CYCLONE) bus_space_write_4(csc->sc_funct, csc->sc_funch, EX_CB_INTR, EX_CB_INTR_ACK); Cardbus_function_disable(csc->sc_ct); } void ex_cardbus_intr_ack(struct ex_softc *sc) { struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; bus_space_write_4(csc->sc_funct, csc->sc_funch, EX_CB_INTR, EX_CB_INTR_ACK); } int ex_cardbus_detach(device_t self, int flags) { struct ex_cardbus_softc *csc = device_private(self); struct ex_softc *sc = &csc->sc_softc; struct cardbus_devfunc *ct = csc->sc_ct; int rv; #if defined(DIAGNOSTIC) if (ct == NULL) { panic("%s: data structure lacks", device_xname(self)); } #endif if ((rv = ex_detach(sc)) != 0) return rv; /* * Unhook the interrupt handler. */ Cardbus_intr_disestablish(ct, sc->sc_ih); if (csc->sc_cardtype == EX_CB_CYCLONE) { Cardbus_mapreg_unmap(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, csc->sc_funct, csc->sc_funch, csc->sc_funcsize); } Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_iot, sc->sc_ioh, csc->sc_mapsize); return 0; } int ex_cardbus_enable(struct ex_softc *sc) { struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; Cardbus_function_enable(csc->sc_ct); ex_cardbus_setup(csc); sc->sc_ih = Cardbus_intr_establish(csc->sc_ct, IPL_NET, ex_intr, sc); if (NULL == sc->sc_ih) { aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n"); return (1); } return (0); } void ex_cardbus_disable(struct ex_softc *sc) { struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; if (sc->sc_ih != NULL) { Cardbus_intr_disestablish(csc->sc_ct, sc->sc_ih); sc->sc_ih = NULL; } Cardbus_function_disable(csc->sc_ct); } void ex_cardbus_setup(struct ex_cardbus_softc *csc) { cardbus_devfunc_t ct = csc->sc_ct; pcireg_t reg; (void)cardbus_set_powerstate(ct, csc->sc_tag, PCI_PWR_D0); /* Program the BAR */ Cardbus_conf_write(ct, csc->sc_tag, csc->sc_bar_reg, csc->sc_bar_val); /* Make sure the right access type is on the CardBus bridge. */ if (csc->sc_cardtype == EX_CB_CYCLONE) { /* Program the BAR */ Cardbus_conf_write(ct, csc->sc_tag, csc->sc_bar_reg1, csc->sc_bar_val1); /* * Make sure CardBus brigde can access memory space. Usually * memory access is enabled by BIOS, but some BIOSes do not * enable it. */ } /* Enable the appropriate bits in the CARDBUS CSR. */ reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); reg |= csc->sc_csr; Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); /* * set latency timer */ reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_BHLC_REG); if (PCI_LATTIMER(reg) < 0x20) { /* at least the value of latency timer should 0x20. */ DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", PCI_LATTIMER(reg))); reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); reg |= (0x20 << PCI_LATTIMER_SHIFT); Cardbus_conf_write(ct, csc->sc_tag, PCI_BHLC_REG, reg); } }