1 /* $NetBSD: if_le_vsbus.c,v 1.29 2022/05/29 10:45:05 rin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 /*- 33 * Copyright (c) 1992, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * Ralph Campbell and Rick Macklem. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: if_le_vsbus.c,v 1.29 2022/05/29 10:45:05 rin Exp $"); 68 69 #include "opt_inet.h" 70 71 #include <sys/param.h> 72 #include <sys/bus.h> 73 #include <sys/cpu.h> 74 #include <sys/device.h> 75 #include <sys/socket.h> 76 77 #include <uvm/uvm_extern.h> 78 79 #include <net/if.h> 80 #include <net/if_ether.h> 81 #include <net/if_media.h> 82 83 #ifdef INET 84 #include <netinet/in.h> 85 #include <netinet/if_inarp.h> 86 #endif 87 88 #include <machine/sid.h> 89 #include <machine/scb.h> 90 #include <machine/vsbus.h> 91 92 #include <dev/ic/lancereg.h> 93 #include <dev/ic/lancevar.h> 94 #include <dev/ic/am7990reg.h> 95 #include <dev/ic/am7990var.h> 96 97 #include "ioconf.h" 98 99 struct le_softc { 100 struct am7990_softc sc_am7990; /* Must be first */ 101 struct evcnt sc_intrcnt; 102 bus_dmamap_t sc_dm; 103 volatile uint16_t *sc_rap; 104 volatile uint16_t *sc_rdp; 105 }; 106 107 static int le_vsbus_match(device_t, cfdata_t, void *); 108 static void le_vsbus_attach(device_t, device_t, void *); 109 static void lewrcsr(struct lance_softc *, uint16_t, uint16_t); 110 static uint16_t lerdcsr(struct lance_softc *, uint16_t); 111 112 CFATTACH_DECL_NEW(le_vsbus, sizeof(struct le_softc), 113 le_vsbus_match, le_vsbus_attach, NULL, NULL); 114 115 void 116 lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val) 117 { 118 struct le_softc * const sc = (void *)ls; 119 120 *sc->sc_rap = port; 121 *sc->sc_rdp = val; 122 } 123 124 uint16_t 125 lerdcsr(struct lance_softc *ls, uint16_t port) 126 { 127 struct le_softc * const sc = (void *)ls; 128 129 *sc->sc_rap = port; 130 return *sc->sc_rdp; 131 } 132 133 static int 134 le_vsbus_match(device_t parent, cfdata_t cf, void *aux) 135 { 136 struct vsbus_attach_args * const va = aux; 137 volatile uint16_t *rdp, *rap; 138 struct leinit initblock; 139 bus_dmamap_t map; 140 int i; 141 int rv = 0; 142 int error; 143 144 if (vax_boardtype == VAX_BTYP_49 || vax_boardtype == VAX_BTYP_53) 145 return 0; 146 147 error = bus_dmamap_create(va->va_dmat, sizeof(initblock), 1, 148 sizeof(initblock), 0, BUS_DMA_NOWAIT, &map); 149 if (error) { 150 return 0; 151 } 152 153 error = bus_dmamap_load(va->va_dmat, map, &initblock, 154 sizeof(initblock), NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 155 if (error) { 156 bus_dmamap_destroy(va->va_dmat, map); 157 return 0; 158 } 159 160 memset(&initblock, 0, sizeof(initblock)); 161 162 rdp = (uint16_t *)va->va_addr; 163 rap = rdp + 2; 164 165 /* Make sure the chip is stopped. */ 166 *rap = LE_CSR0; 167 *rdp = LE_C0_STOP; 168 DELAY(100); 169 *rap = LE_CSR1; 170 *rdp = map->dm_segs->ds_addr & 0xffff; 171 *rap = LE_CSR2; 172 *rdp = (map->dm_segs->ds_addr >> 16) & 0xffff; 173 *rap = LE_CSR0; 174 *rdp = LE_C0_INIT|LE_C0_INEA; 175 176 /* Wait for initialization to finish. */ 177 for (i = 100; i >= 0; i--) { 178 DELAY(1000); 179 /* Should have interrupted by now */ 180 if (*rdp & LE_C0_IDON) 181 rv = 1; 182 } 183 *rap = LE_CSR0; 184 *rdp = LE_C0_STOP; 185 186 bus_dmamap_unload(va->va_dmat, map); 187 bus_dmamap_destroy(va->va_dmat, map); 188 return rv; 189 } 190 191 static void 192 le_vsbus_attach(device_t parent, device_t self, void *aux) 193 { 194 struct vsbus_attach_args * const va = aux; 195 struct le_softc * const sc = device_private(self); 196 bus_dma_segment_t seg; 197 int *lance_addr; 198 int i, err, rseg; 199 200 sc->sc_am7990.lsc.sc_dev = self; 201 sc->sc_rdp = (uint16_t *) vax_map_physmem(NI_BASE, 1); 202 sc->sc_rap = sc->sc_rdp + 2; 203 204 /* 205 * MD functions. 206 */ 207 sc->sc_am7990.lsc.sc_rdcsr = lerdcsr; 208 sc->sc_am7990.lsc.sc_wrcsr = lewrcsr; 209 sc->sc_am7990.lsc.sc_nocarrier = NULL; 210 211 scb_vecalloc(va->va_cvec, (void (*)(void *)) am7990_intr, sc, 212 SCB_ISTACK, &sc->sc_intrcnt); 213 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 214 device_xname(self), "intr"); 215 216 /* 217 * Allocate a (DMA-safe) block for all descriptors and buffers. 218 */ 219 220 #define ALLOCSIZ (64 * 1024) 221 err = bus_dmamem_alloc(va->va_dmat, ALLOCSIZ, PAGE_SIZE, 0, 222 &seg, 1, &rseg, BUS_DMA_NOWAIT); 223 if (err) { 224 aprint_error(": unable to alloc buffer block: err %d\n", err); 225 return; 226 } 227 err = bus_dmamem_map(va->va_dmat, &seg, rseg, ALLOCSIZ, 228 (void **)&sc->sc_am7990.lsc.sc_mem, 229 BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 230 if (err) { 231 aprint_error(": unable to map buffer block: err %d\n", err); 232 goto bad_free; 233 } 234 bus_dmamap_create(va->va_dmat, ALLOCSIZ, rseg, ALLOCSIZ, 235 0, BUS_DMA_NOWAIT, &sc->sc_dm); 236 if (err) { 237 aprint_error(": unable to create DMA map: err %d\n", err); 238 goto bad_unmap; 239 } 240 err = bus_dmamap_load(va->va_dmat, sc->sc_dm, sc->sc_am7990.lsc.sc_mem, 241 ALLOCSIZ, NULL, BUS_DMA_NOWAIT); 242 if (err) { 243 aprint_error(": unable to load DMA map: err %d\n", err); 244 goto bad_destroy; 245 } 246 aprint_normal(" buf 0x%lx-0x%lx", sc->sc_dm->dm_segs->ds_addr, 247 sc->sc_dm->dm_segs->ds_addr + sc->sc_dm->dm_segs->ds_len - 1); 248 sc->sc_am7990.lsc.sc_addr = sc->sc_dm->dm_segs->ds_addr & 0xffffff; 249 sc->sc_am7990.lsc.sc_memsize = sc->sc_dm->dm_segs->ds_len; 250 251 sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_contig; 252 sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_contig; 253 sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_contig; 254 sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_contig; 255 sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_contig; 256 257 #ifdef LEDEBUG 258 sc->sc_am7990.lsc.sc_debug = 1; 259 #endif 260 /* 261 * Get the ethernet address out of rom 262 */ 263 lance_addr = (int *)vax_map_physmem(NI_ADDR, 1); 264 for (i = 0; i < ETHER_ADDR_LEN; i++) 265 sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i]; 266 vax_unmap_physmem((vaddr_t)lance_addr, 1); 267 268 memcpy(sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, device_xname(self), 269 IFNAMSIZ); 270 271 /* Prettier printout */ 272 aprint_normal("\n%s", device_xname(self)); 273 274 am7990_config(&sc->sc_am7990); 275 276 return; 277 278 bad_destroy: 279 bus_dmamap_destroy(va->va_dmat, sc->sc_dm); 280 bad_unmap: 281 bus_dmamem_unmap(va->va_dmat, sc->sc_am7990.lsc.sc_mem, ALLOCSIZ); 282 bad_free: 283 bus_dmamem_free(va->va_dmat, &seg, rseg); 284 } 285
Indexes created Tue Oct 14 11:09:46 GMT 2025