/* $NetBSD: if_le.c,v 1.62 2010/01/19 22:06:20 pooka Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum and by Jason R. Thorpe. * * 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 THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION 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. */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. * * @(#)if_le.c 8.2 (Berkeley) 11/16/93 */ #include __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.62 2010/01/19 22:06:20 pooka Exp $"); #include "opt_inet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "opt_useleds.h" #ifdef USELEDS #include #endif struct le_softc { struct am7990_softc sc_am7990; /* glue to MI code */ bus_space_tag_t sc_bst; bus_space_handle_t sc_bsh0; /* DIO registers */ bus_space_handle_t sc_bsh1; /* LANCE registers */ bus_space_handle_t sc_bsh2; /* buffer area */ }; static int lematch(device_t, cfdata_t, void *); static void leattach(device_t, device_t, void *); CFATTACH_DECL_NEW(le, sizeof(struct le_softc), lematch, leattach, NULL, NULL); static int leintr(void *); #if defined(_KERNEL_OPT) #include "opt_ddb.h" #endif static void le_copytobuf(struct lance_softc *, void *, int, int); static void le_copyfrombuf(struct lance_softc *, void *, int, int); static void le_zerobuf(struct lance_softc *, int, int); /* offsets for: ID, REGS, MEM, NVRAM */ static const int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; static void lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t bst = lesc->sc_bst; bus_space_handle_t bsh0 = lesc->sc_bsh0; bus_space_handle_t bsh1 = lesc->sc_bsh1; do { bus_space_write_2(bst, bsh1, LER1_RAP, port); } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); do { bus_space_write_2(bst, bsh1, LER1_RDP, val); } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); } static uint16_t lerdcsr(struct lance_softc *sc, uint16_t port) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_tag_t bst = lesc->sc_bst; bus_space_handle_t bsh0 = lesc->sc_bsh0; bus_space_handle_t bsh1 = lesc->sc_bsh1; uint16_t val; do { bus_space_write_2(bst, bsh1, LER1_RAP, port); } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); do { val = bus_space_read_2(bst, bsh1, LER1_RDP); } while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0); return val; } static int lematch(device_t parent, cfdata_t cf, void *aux) { struct dio_attach_args *da = aux; if (da->da_id == DIO_DEVICE_ID_LAN) return 1; return 0; } /* * Interface exists: make available by filling in network interface * record. System will initialize the interface when it is ready * to accept packets. */ static void leattach(device_t parent, device_t self, void *aux) { struct le_softc *lesc = device_private(self); struct lance_softc *sc = &lesc->sc_am7990.lsc; struct dio_attach_args *da = aux; bus_space_tag_t bst = da->da_bst; bus_space_handle_t bsh0, bsh1, bsh2; bus_size_t offset; int i; sc->sc_dev = self; if (bus_space_map(bst, (bus_addr_t)dio_scodetopa(da->da_scode), da->da_size, 0, &bsh0)) { aprint_error(": can't map LANCE registers\n"); return; } if (bus_space_subregion(bst, bsh0, lestd[1], LER1_SIZE, &bsh1)) { aprint_error(": can't subregion LANCE space\n"); return; } if (bus_space_subregion(bst, bsh0, lestd[2], LE_BUFSIZE, &bsh2)) { aprint_error(": can't subregion buffer space\n"); return; } lesc->sc_bst = bst; lesc->sc_bsh0 = bsh0; lesc->sc_bsh1 = bsh1; lesc->sc_bsh2 = bsh2; bus_space_write_1(bst, bsh0, LER0_ID, 0xff); DELAY(100); sc->sc_conf3 = LE_C3_BSWP; sc->sc_addr = 0; sc->sc_memsize = LE_BUFSIZE; /* * Read the ethernet address off the board, one nibble at a time. */ offset = lestd[3]; for (i = 0; i < sizeof(sc->sc_enaddr); i++) { sc->sc_enaddr[i] = (bus_space_read_1(bst, bsh0, ++offset) & 0xf) << 4; offset++; sc->sc_enaddr[i] |= (bus_space_read_1(bst, bsh0, ++offset) & 0xf); offset++; } sc->sc_copytodesc = le_copytobuf; sc->sc_copyfromdesc = le_copyfrombuf; sc->sc_copytobuf = le_copytobuf; sc->sc_copyfrombuf = le_copyfrombuf; sc->sc_zerobuf = le_zerobuf; sc->sc_rdcsr = lerdcsr; sc->sc_wrcsr = lewrcsr; sc->sc_hwinit = NULL; am7990_config(&lesc->sc_am7990); /* Establish the interrupt handler. */ (void) dio_intr_establish(leintr, sc, da->da_ipl, IPL_NET); bus_space_write_1(bst, bsh0, LER0_STATUS, LE_IE); } static int leintr(void *arg) { struct lance_softc *sc = arg; #ifdef USELEDS uint16_t isr; isr = lerdcsr(sc, LE_CSR0); if ((isr & LE_C0_INTR) == 0) return 0; if (isr & LE_C0_RINT) ledcontrol(0, 0, LED_LANRCV); if (isr & LE_C0_TINT) ledcontrol(0, 0, LED_LANXMT); #endif /* USELEDS */ return am7990_intr(sc); } static void le_copytobuf(struct lance_softc *sc, void *from, int boff, int len) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_write_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, from, len); } static void le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_read_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, to, len); } static void le_zerobuf(struct lance_softc *sc, int boff, int len) { struct le_softc *lesc = (struct le_softc *)sc; bus_space_set_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, 0, len); }