/* $FabBSD$ */ /* $OpenBSD: if_xl_pci.c,v 1.22 2006/08/10 20:10:19 brad Exp $ */ /* * Copyright (c) 1997, 1998, 1999 * Bill Paul . 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``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 Bill Paul OR THE VOICES IN HIS HEAD * 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. * * $FreeBSD: if_xl.c,v 1.72 2000/01/09 21:12:59 wpaul Exp $ */ #include #include #include #include #include #include #include #include #include #include /* only for declaration of wakeup() used by vm.h */ #include #include #include #include #include #ifdef INET #include #include #include #include #include #endif #include #include #include #include #include /* * The following #define causes the code to use PIO to access the * chip's registers instead of memory mapped mode. The reason PIO mode * is on by default is that the Etherlink XL manual seems to indicate * that only the newer revision chips (3c905B) support both PIO and * memory mapped access. Since we want to be compatible with the older * bus master chips, we use PIO here. If you comment this out, the * driver will use memory mapped I/O, which may be faster but which * might not work on some devices. */ #define XL_USEIOSPACE #define XL_PCI_FUNCMEM 0x0018 #define XL_PCI_INTR 0x0004 #define XL_PCI_INTRACK 0x8000 #include int xl_pci_match(struct device *, void *, void *); void xl_pci_attach(struct device *, struct device *, void *); void xl_pci_intr_ack(struct xl_softc *); struct cfattach xl_pci_ca = { sizeof(struct xl_softc), xl_pci_match, xl_pci_attach, }; const struct pci_matchid xl_pci_devices[] = { { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSOHO100TX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900TPO }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900COMBO }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900B }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900BCOMBO }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900BTPC }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C900BFL }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905TX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905T4 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905BTX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905BT4 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905BCOMBO }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905BFX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C980TX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C980CTX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C905CTX }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C450 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C555 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C556 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C556B }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C9201 }, { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C920BEMBW }, }; int xl_pci_match(struct device *parent, void *match, void *aux) { return (pci_matchbyid((struct pci_attach_args *)aux, xl_pci_devices, sizeof(xl_pci_devices)/sizeof(xl_pci_devices[0]))); } void xl_pci_attach(struct device *parent, struct device *self, void *aux) { struct xl_softc *sc = (struct xl_softc *)self; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; pci_intr_handle_t ih; const char *intrstr = NULL; bus_size_t iosize, funsize; u_int32_t command; sc->sc_dmat = pa->pa_dmat; sc->xl_flags = 0; /* set required flags */ switch (PCI_PRODUCT(pa->pa_id)) { case TC_DEVICEID_HURRICANE_555: sc->xl_flags |= XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_8BITROM; break; case TC_DEVICEID_HURRICANE_556: sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK | XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_WEIRDRESET; sc->xl_flags |= XL_FLAG_INVERT_LED_PWR|XL_FLAG_INVERT_MII_PWR; sc->xl_flags |= XL_FLAG_8BITROM; break; case TC_DEVICEID_HURRICANE_556B: sc->xl_flags |= XL_FLAG_FUNCREG | XL_FLAG_PHYOK | XL_FLAG_EEPROM_OFFSET_30 | XL_FLAG_WEIRDRESET; sc->xl_flags |= XL_FLAG_INVERT_LED_PWR|XL_FLAG_INVERT_MII_PWR; break; case PCI_PRODUCT_3COM_3C9201: case PCI_PRODUCT_3COM_3C920BEMBW: sc->xl_flags |= XL_FLAG_PHYOK; break; case TC_DEVICEID_BOOMERANG_10_100BT: sc->xl_flags |= XL_FLAG_NO_MMIO; break; default: break; } /* * If this is a 3c905B, we have to check one extra thing. * The 905B supports power management and may be placed in * a low-power mode (D3 mode), typically by certain operating * systems which shall not be named. The PCI BIOS is supposed * to reset the NIC and bring it out of low-power mode, but * some do not. Consequently, we have to see if this chip * supports power management, and if so, make sure it's not * in low-power mode. If power management is available, the * capid byte will be 0x01. * * I _think_ that what actually happens is that the chip * loses its PCI configuration during the transition from * D3 back to D0; this means that it should be possible for * us to save the PCI iobase, membase and IRQ, put the chip * back in the D0 state, then restore the PCI config ourselves. */ command = pci_conf_read(pc, pa->pa_tag, XL_PCI_CAPID) & 0xff; if (command == 0x01) { command = pci_conf_read(pc, pa->pa_tag, XL_PCI_PWRMGMTCTRL); if (command & XL_PSTATE_MASK) { u_int32_t io, mem, irq; /* Save PCI config */ io = pci_conf_read(pc, pa->pa_tag, XL_PCI_LOIO); mem = pci_conf_read(pc, pa->pa_tag, XL_PCI_LOMEM); irq = pci_conf_read(pc, pa->pa_tag, XL_PCI_INTLINE); /* Reset the power state. */ printf("%s: chip is in D%d power mode " "-- setting to D0\n", sc->sc_dev.dv_xname, command & XL_PSTATE_MASK); command &= 0xFFFFFFFC; pci_conf_write(pc, pa->pa_tag, XL_PCI_PWRMGMTCTRL, command); pci_conf_write(pc, pa->pa_tag, XL_PCI_LOIO, io); pci_conf_write(pc, pa->pa_tag, XL_PCI_LOMEM, mem); pci_conf_write(pc, pa->pa_tag, XL_PCI_INTLINE, irq); } } /* * Map control/status registers. */ #ifdef XL_USEIOSPACE if (pci_mapreg_map(pa, XL_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, &sc->xl_btag, &sc->xl_bhandle, NULL, &iosize, 0)) { printf(": can't map i/o space\n"); return; } #else if (pci_mapreg_map(pa, XL_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, &sc->xl_btag, &sc->xl_bhandle, NULL, &iosize, 0)) { printf(": can't map i/o space\n"); return; } #endif if (sc->xl_flags & XL_FLAG_FUNCREG) { if (pci_mapreg_map(pa, XL_PCI_FUNCMEM, PCI_MAPREG_TYPE_MEM, 0, &sc->xl_funct, &sc->xl_funch, NULL, &funsize, 0)) { printf(": can't map i/o space\n"); bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize); return; } sc->intr_ack = xl_pci_intr_ack; } /* * Allocate our interrupt. */ if (pci_intr_map(pa, &ih)) { printf(": couldn't map interrupt\n"); bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize); if (sc->xl_flags & XL_FLAG_FUNCREG) bus_space_unmap(sc->xl_funct, sc->xl_funch, funsize); return; } intrstr = pci_intr_string(pc, ih); sc->xl_intrhand = pci_intr_establish(pc, ih, IPL_NET, xl_intr, sc, self->dv_xname); if (sc->xl_intrhand == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize); if (sc->xl_flags & XL_FLAG_FUNCREG) bus_space_unmap(sc->xl_funct, sc->xl_funch, funsize); return; } printf(": %s", intrstr); xl_attach(sc); } void xl_pci_intr_ack(struct xl_softc *sc) { bus_space_write_4(sc->xl_funct, sc->xl_funch, XL_PCI_INTR, XL_PCI_INTRACK); }