if_le_sbdio.c revision 1.4.2.1
1 /* $NetBSD: if_le_sbdio.c,v 1.4.2.1 2008/05/18 12:31:54 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Adam Glass and Gordon W. Ross. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: if_le_sbdio.c,v 1.4.2.1 2008/05/18 12:31:54 yamt Exp $"); 34 35 #include "opt_inet.h" 36 #include "bpfilter.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/mbuf.h> 41 #include <sys/syslog.h> 42 #include <sys/socket.h> 43 #include <sys/device.h> 44 45 #include <net/if.h> 46 #include <net/if_ether.h> 47 #include <net/if_media.h> 48 49 #ifdef INET 50 #include <netinet/in.h> 51 #include <netinet/if_inarp.h> 52 #endif 53 54 #include <machine/bus.h> 55 #include <machine/intr.h> 56 #include <machine/sbdiovar.h> 57 #include <machine/sbdvar.h> /* for ether_addr() */ 58 59 #include <dev/ic/lancereg.h> 60 #include <dev/ic/lancevar.h> 61 #include <dev/ic/am7990reg.h> 62 #include <dev/ic/am7990var.h> 63 64 #define LEREG1_RDP 0 /* offset to lance data register */ 65 #define LEREG1_RAP 6 /* offset to lance address regsiter */ 66 #define LE_MEMSIZE (64 * 1024) 67 68 struct le_sbdio_softc { 69 struct am7990_softc sc_am7990; 70 71 bus_space_tag_t sc_bst; 72 bus_space_handle_t sc_bsh; 73 bus_dma_tag_t sc_dmat; 74 bus_dmamap_t sc_dmamap; 75 }; 76 77 int le_sbdio_match(device_t, struct cfdata *, void *); 78 void le_sbdio_attach(device_t, struct device *, void *); 79 static void le_sbdio_wrcsr(struct lance_softc *, uint16_t, uint16_t); 80 static uint16_t le_sbdio_rdcsr(struct lance_softc *, uint16_t); 81 82 CFATTACH_DECL_NEW(le_sbdio, sizeof(struct le_sbdio_softc), 83 le_sbdio_match, le_sbdio_attach, NULL, NULL); 84 85 int 86 le_sbdio_match(device_t parent, cfdata_t cf, void *aux) 87 { 88 struct sbdio_attach_args *sa = aux; 89 90 return strcmp(sa->sa_name, "lance") ? 0 : 1; 91 } 92 93 void 94 le_sbdio_attach(device_t parent, device_t self, void *aux) 95 { 96 struct le_sbdio_softc *lesc = device_private(self); 97 struct sbdio_attach_args *sa = aux; 98 struct lance_softc *sc = &lesc->sc_am7990.lsc; 99 bus_dma_segment_t seg; 100 int rseg; 101 102 sc->sc_dev = self; 103 lesc->sc_dmat = sa->sa_dmat; 104 lesc->sc_bst = sa->sa_bust; 105 106 if (bus_space_map(lesc->sc_bst, sa->sa_addr1, 8 /* XXX */, 107 BUS_SPACE_MAP_LINEAR, &lesc->sc_bsh) != 0) { 108 aprint_error(": cannot map registers\n"); 109 return; 110 } 111 112 /* Allocate DMA memory for the chip. */ 113 if (bus_dmamem_alloc(lesc->sc_dmat, LE_MEMSIZE, 0, 0, &seg, 1, &rseg, 114 BUS_DMA_NOWAIT) != 0) { 115 aprint_error(": can't allocate DMA memory\n"); 116 return; 117 } 118 if (bus_dmamem_map(lesc->sc_dmat, &seg, rseg, LE_MEMSIZE, 119 (void **)&sc->sc_mem, BUS_DMA_NOWAIT|BUS_DMA_COHERENT) != 0) { 120 aprint_error(": can't map DMA memory\n"); 121 return; 122 } 123 if (bus_dmamap_create(lesc->sc_dmat, LE_MEMSIZE, 1, LE_MEMSIZE, 124 0, BUS_DMA_NOWAIT, &lesc->sc_dmamap) != 0) { 125 aprint_error(": can't create DMA map\n"); 126 return; 127 } 128 if (bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmamap, sc->sc_mem, 129 LE_MEMSIZE, NULL, BUS_DMA_NOWAIT) != 0) { 130 aprint_error(": can't load DMA map\n"); 131 return; 132 } 133 134 sc->sc_memsize = LE_MEMSIZE; 135 sc->sc_addr = lesc->sc_dmamap->dm_segs[0].ds_addr; 136 sc->sc_conf3 = LE_C3_BSWP | LE_C3_BCON; 137 (*platform.ether_addr)(sc->sc_enaddr); 138 139 sc->sc_copytodesc = lance_copytobuf_contig; 140 sc->sc_copyfromdesc = lance_copyfrombuf_contig; 141 sc->sc_copytobuf = lance_copytobuf_contig; 142 sc->sc_copyfrombuf = lance_copyfrombuf_contig; 143 sc->sc_zerobuf = lance_zerobuf_contig; 144 #ifdef LEDEBUG 145 sc->sc_debug = 0xff; 146 #endif 147 sc->sc_rdcsr = le_sbdio_rdcsr; 148 sc->sc_wrcsr = le_sbdio_wrcsr; 149 150 am7990_config(&lesc->sc_am7990); 151 intr_establish(sa->sa_irq, am7990_intr, sc); 152 } 153 154 static void 155 le_sbdio_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 156 { 157 struct le_sbdio_softc *lesc = (struct le_sbdio_softc *)sc; 158 159 bus_space_write_2(lesc->sc_bst, lesc->sc_bsh, LEREG1_RAP, port); 160 bus_space_write_2(lesc->sc_bst, lesc->sc_bsh, LEREG1_RDP, val); 161 } 162 163 static uint16_t 164 le_sbdio_rdcsr(struct lance_softc *sc, uint16_t port) 165 { 166 struct le_sbdio_softc *lesc = (struct le_sbdio_softc *)sc; 167 168 bus_space_write_2(lesc->sc_bst, lesc->sc_bsh, LEREG1_RAP, port); 169 return bus_space_read_2(lesc->sc_bst, lesc->sc_bsh, LEREG1_RDP); 170 } 171
Indexes created Thu Oct 23 22:10:10 GMT 2025