/* $NetBSD: if_hme_pci.c,v 1.7 2001/10/05 17:49:43 thorpej Exp $ */ /* * Copyright (c) 2000 Matthew R. Green * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. */ /* * PCI front-end device driver for the HME ethernet device. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct hme_pci_softc { struct hme_softc hsc_hme; /* HME device */ bus_space_tag_t hsc_memt; bus_space_handle_t hsc_memh; void *hsc_ih; }; int hmematch_pci __P((struct device *, struct cfdata *, void *)); void hmeattach_pci __P((struct device *, struct device *, void *)); struct cfattach hme_pci_ca = { sizeof(struct hme_pci_softc), hmematch_pci, hmeattach_pci }; int hmematch_pci(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct pci_attach_args *pa = aux; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_HMENETWORK) return (1); return (0); } void hmeattach_pci(parent, self, aux) struct device *parent, *self; void *aux; { struct pci_attach_args *pa = aux; struct hme_pci_softc *hsc = (void *)self; struct hme_softc *sc = &hsc->hsc_hme; pci_intr_handle_t ih; pcireg_t csr; const char *intrstr; int type; /* XXX the following declarations should be elsewhere */ extern void myetheraddr __P((u_char *)); printf(": Sun Happy Meal Ethernet, rev. %d\n", PCI_REVISION(pa->pa_class)); /* * enable io/memory-space accesses. this is kinda of gross; but # the hme comes up with neither IO space enabled, or memory space. */ if (pa->pa_memt) pa->pa_flags |= PCI_FLAGS_MEM_ENABLED; if (pa->pa_iot) pa->pa_flags |= PCI_FLAGS_IO_ENABLED; csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); if (pa->pa_memt) { type = PCI_MAPREG_TYPE_MEM; csr |= PCI_COMMAND_MEM_ENABLE; sc->sc_bustag = pa->pa_memt; } else { type = PCI_MAPREG_TYPE_IO; csr |= PCI_COMMAND_IO_ENABLE; sc->sc_bustag = pa->pa_iot; } pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MEM_ENABLE); sc->sc_dmatag = pa->pa_dmat; sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ /* * Map five register banks: * * bank 0: HME SEB registers: +0x0000 * bank 1: HME ETX registers: +0x2000 * bank 2: HME ERX registers: +0x4000 * bank 3: HME MAC registers: +0x6000 * bank 4: HME MIF registers: +0x7000 * */ #define PCI_HME_BASEADDR 0x10 if (pci_mapreg_map(pa, PCI_HME_BASEADDR, type, 0, &hsc->hsc_memt, &hsc->hsc_memh, NULL, NULL) != 0) { printf("%s: unable to map device registers\n", sc->sc_dev.dv_xname); return; } sc->sc_seb = hsc->hsc_memh; if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x2000, 0x1000, &sc->sc_etx)) { printf("%s: unable to subregion ETX registers\n", sc->sc_dev.dv_xname); return; } if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x4000, 0x1000, &sc->sc_erx)) { printf("%s: unable to subregion ERX registers\n", sc->sc_dev.dv_xname); return; } if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x6000, 0x1000, &sc->sc_mac)) { printf("%s: unable to subregion MAC registers\n", sc->sc_dev.dv_xname); return; } if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x7000, 0x1000, &sc->sc_mif)) { printf("%s: unable to subregion MIF registers\n", sc->sc_dev.dv_xname); return; } myetheraddr(sc->sc_enaddr); /* * Map and establish our interrupt. */ if (pci_intr_map(pa, &ih) != 0) { printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname); return; } intrstr = pci_intr_string(pa->pa_pc, ih); hsc->hsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, hme_intr, sc); if (hsc->hsc_ih == NULL) { printf("%s: unable to establish interrupt", sc->sc_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); } printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); #if 0 /* * Get transfer burst size from PROM and pass it on * to the back-end driver. */ sbusburst = ((struct sbus_softc *)parent)->sc_burst; if (sbusburst == 0) sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ burst = PROM_getpropint(node, "burst-sizes", -1); if (burst == -1) /* take SBus burst sizes */ burst = sbusburst; /* Clamp at parent's burst sizes */ burst &= sbusburst; /* Translate into plain numerical format */ sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : (burst & SBUS_BURST_16) ? 16 : 0; #endif sc->sc_burst = 16; /* XXX */ /* Finish off the attach. */ hme_config(sc); }