if_ei.c revision 1.3.2.2
1 1.3.2.2 nathanw /* $NetBSD: if_ei.c,v 1.3.2.2 2002/01/08 00:31:31 nathanw Exp $ */ 2 1.3.2.2 nathanw 3 1.3.2.2 nathanw /*- 4 1.3.2.2 nathanw * Copyright (c) 2000, 2001 Ben Harris 5 1.3.2.2 nathanw * All rights reserved. 6 1.3.2.2 nathanw * 7 1.3.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.3.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.3.2.2 nathanw * are met: 10 1.3.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.3.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.3.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.3.2.2 nathanw * 3. The name of the author may not be used to endorse or promote products 16 1.3.2.2 nathanw * derived from this software without specific prior written permission. 17 1.3.2.2 nathanw * 18 1.3.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.3.2.2 nathanw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.3.2.2 nathanw * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.3.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.3.2.2 nathanw * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 1.3.2.2 nathanw * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 1.3.2.2 nathanw * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 1.3.2.2 nathanw * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 1.3.2.2 nathanw * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 1.3.2.2 nathanw * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 1.3.2.2 nathanw */ 29 1.3.2.2 nathanw /* 30 1.3.2.2 nathanw * if_ei.c -- driver for Acorn AKA25 Ether1 card 31 1.3.2.2 nathanw */ 32 1.3.2.2 nathanw /* 33 1.3.2.2 nathanw * This is not directly based on the arm32 ie driver, as that doesn't 34 1.3.2.2 nathanw * use the MI 82586 driver, and generally looks a mess (not to mention 35 1.3.2.2 nathanw * having dodgy copyright status). Let's try again. 36 1.3.2.2 nathanw */ 37 1.3.2.2 nathanw 38 1.3.2.2 nathanw #include <sys/cdefs.h> 39 1.3.2.2 nathanw __KERNEL_RCSID(0, "$NetBSD: if_ei.c,v 1.3.2.2 2002/01/08 00:31:31 nathanw Exp $"); 40 1.3.2.2 nathanw 41 1.3.2.2 nathanw #include <sys/param.h> 42 1.3.2.2 nathanw 43 1.3.2.2 nathanw #include <sys/device.h> 44 1.3.2.2 nathanw #include <sys/malloc.h> 45 1.3.2.2 nathanw #include <sys/reboot.h> /* For bootverbose */ 46 1.3.2.2 nathanw #include <sys/socket.h> 47 1.3.2.2 nathanw #include <sys/syslog.h> 48 1.3.2.2 nathanw #include <sys/systm.h> 49 1.3.2.2 nathanw #include <net/if.h> 50 1.3.2.2 nathanw #include <net/if_ether.h> 51 1.3.2.2 nathanw #include <net/if_media.h> 52 1.3.2.2 nathanw #include <machine/bus.h> 53 1.3.2.2 nathanw #include <dev/ic/i82586reg.h> 54 1.3.2.2 nathanw #include <dev/ic/i82586var.h> 55 1.3.2.2 nathanw #include <dev/podulebus/podulebus.h> 56 1.3.2.2 nathanw #include <dev/podulebus/podules.h> 57 1.3.2.2 nathanw #include <dev/podulebus/if_eireg.h> 58 1.3.2.2 nathanw 59 1.3.2.2 nathanw /* Callbacks from the MI 82586 driver */ 60 1.3.2.2 nathanw static void ei_hwreset(struct ie_softc *, int); 61 1.3.2.2 nathanw /* static void ei_hwinit(struct ie_softc *); */ 62 1.3.2.2 nathanw static void ei_attn(struct ie_softc *, int); 63 1.3.2.2 nathanw static int ei_intrhook(struct ie_softc *, int); 64 1.3.2.2 nathanw 65 1.3.2.2 nathanw static void ei_copyin(struct ie_softc *, void *, int, size_t); 66 1.3.2.2 nathanw static void ei_copyout(struct ie_softc *, const void *, int, size_t); 67 1.3.2.2 nathanw static u_int16_t ei_read16(struct ie_softc *, int); 68 1.3.2.2 nathanw static void ei_write16(struct ie_softc *, int, u_int16_t); 69 1.3.2.2 nathanw static void ei_write24(struct ie_softc *, int, int); 70 1.3.2.2 nathanw 71 1.3.2.2 nathanw /* autoconfiguration glue */ 72 1.3.2.2 nathanw static int ei_match(struct device *, struct cfdata *, void *); 73 1.3.2.2 nathanw static void ei_attach(struct device *, struct device *, void *); 74 1.3.2.2 nathanw 75 1.3.2.2 nathanw struct ei_softc { 76 1.3.2.2 nathanw struct ie_softc sc_ie; 77 1.3.2.2 nathanw bus_space_tag_t sc_ctl_t; 78 1.3.2.2 nathanw bus_space_handle_t sc_ctl_h; 79 1.3.2.2 nathanw bus_space_tag_t sc_mem_t; 80 1.3.2.2 nathanw bus_space_handle_t sc_mem_h; 81 1.3.2.2 nathanw bus_space_tag_t sc_rom_t; 82 1.3.2.2 nathanw bus_space_handle_t sc_rom_h; 83 1.3.2.2 nathanw u_int8_t sc_idrom[EI_ROMSIZE]; 84 1.3.2.2 nathanw void *sc_ih; 85 1.3.2.2 nathanw struct evcnt sc_intrcnt; 86 1.3.2.2 nathanw }; 87 1.3.2.2 nathanw 88 1.3.2.2 nathanw struct cfattach ei_ca = { 89 1.3.2.2 nathanw sizeof(struct ei_softc), ei_match, ei_attach 90 1.3.2.2 nathanw }; 91 1.3.2.2 nathanw 92 1.3.2.2 nathanw static inline void 93 1.3.2.2 nathanw ei_setpage(struct ei_softc *sc, int page) 94 1.3.2.2 nathanw { 95 1.3.2.2 nathanw 96 1.3.2.2 nathanw bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_PAGE, page); 97 1.3.2.2 nathanw } 98 1.3.2.2 nathanw 99 1.3.2.2 nathanw static inline void 100 1.3.2.2 nathanw ei_cli(struct ei_softc *sc) 101 1.3.2.2 nathanw { 102 1.3.2.2 nathanw 103 1.3.2.2 nathanw bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, EI_CTL_CLI); 104 1.3.2.2 nathanw } 105 1.3.2.2 nathanw 106 1.3.2.2 nathanw static int 107 1.3.2.2 nathanw ei_match(struct device *parent, struct cfdata *cf, void *aux) 108 1.3.2.2 nathanw { 109 1.3.2.2 nathanw struct podulebus_attach_args *pa = aux; 110 1.3.2.2 nathanw 111 1.3.2.2 nathanw return IS_PODULE(pa, MANUFACTURER_ACORN, PODULE_ACORN_ETHER1); 112 1.3.2.2 nathanw } 113 1.3.2.2 nathanw 114 1.3.2.2 nathanw static void 115 1.3.2.2 nathanw ei_attach(struct device *parent, struct device *self, void *aux) 116 1.3.2.2 nathanw { 117 1.3.2.2 nathanw struct podulebus_attach_args *pa = aux; 118 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)self; 119 1.3.2.2 nathanw int i; 120 1.3.2.2 nathanw char descr[16]; 121 1.3.2.2 nathanw 122 1.3.2.2 nathanw /* Set up bus spaces */ 123 1.3.2.2 nathanw sc->sc_ctl_t = sc->sc_mem_t = pa->pa_fast_t; 124 1.3.2.2 nathanw bus_space_map(pa->pa_fast_t, pa->pa_fast_base, EI_MEMOFF, 0, 125 1.3.2.2 nathanw &sc->sc_ctl_h); 126 1.3.2.2 nathanw bus_space_map(pa->pa_fast_t, pa->pa_fast_base + EI_MEMOFF, 127 1.3.2.2 nathanw EI_PAGESIZE * 2, 0, &sc->sc_mem_h); 128 1.3.2.2 nathanw sc->sc_rom_t = pa->pa_sync_t; 129 1.3.2.2 nathanw bus_space_map(pa->pa_sync_t, pa->pa_sync_base, EI_ROMSIZE, 0, 130 1.3.2.2 nathanw &sc->sc_rom_h); 131 1.3.2.2 nathanw 132 1.3.2.2 nathanw /* Set up callbacks */ 133 1.3.2.2 nathanw sc->sc_ie.hwinit = NULL; 134 1.3.2.2 nathanw sc->sc_ie.intrhook = ei_intrhook; 135 1.3.2.2 nathanw sc->sc_ie.hwreset = ei_hwreset; 136 1.3.2.2 nathanw sc->sc_ie.chan_attn = ei_attn; 137 1.3.2.2 nathanw 138 1.3.2.2 nathanw sc->sc_ie.memcopyin = ei_copyin; 139 1.3.2.2 nathanw sc->sc_ie.memcopyout = ei_copyout; 140 1.3.2.2 nathanw 141 1.3.2.2 nathanw sc->sc_ie.ie_bus_barrier = NULL; 142 1.3.2.2 nathanw sc->sc_ie.ie_bus_read16 = ei_read16; 143 1.3.2.2 nathanw sc->sc_ie.ie_bus_write16 = ei_write16; 144 1.3.2.2 nathanw sc->sc_ie.ie_bus_write24 = ei_write24; 145 1.3.2.2 nathanw 146 1.3.2.2 nathanw sc->sc_ie.do_xmitnopchain = 0; /* Does it listen? */ 147 1.3.2.2 nathanw 148 1.3.2.2 nathanw sc->sc_ie.sc_mediachange = NULL; 149 1.3.2.2 nathanw sc->sc_ie.sc_mediastatus = NULL; 150 1.3.2.2 nathanw 151 1.3.2.2 nathanw sc->sc_ie.bt = sc->sc_mem_t; /* XXX hope it doesn't use them */ 152 1.3.2.2 nathanw sc->sc_ie.bh = sc->sc_mem_h; 153 1.3.2.2 nathanw 154 1.3.2.2 nathanw printf(":"); 155 1.3.2.2 nathanw 156 1.3.2.2 nathanw /* All Ether1s are 64k (I believe) */ 157 1.3.2.2 nathanw sc->sc_ie.sc_msize = EI_MEMSIZE; 158 1.3.2.2 nathanw 159 1.3.2.2 nathanw /* set up pointers to important on-card control structures */ 160 1.3.2.2 nathanw sc->sc_ie.iscp = 0; 161 1.3.2.2 nathanw sc->sc_ie.scb = IE_ISCP_SZ; 162 1.3.2.2 nathanw sc->sc_ie.scp = sc->sc_ie.sc_msize + IE_SCP_ADDR - (1 << 24); 163 1.3.2.2 nathanw 164 1.3.2.2 nathanw sc->sc_ie.buf_area = sc->sc_ie.scb + IE_SCB_SZ; 165 1.3.2.2 nathanw sc->sc_ie.buf_area_sz = 166 1.3.2.2 nathanw sc->sc_ie.sc_msize - IE_ISCP_SZ - IE_SCB_SZ - IE_SCP_SZ; 167 1.3.2.2 nathanw 168 1.3.2.2 nathanw /* Wipe the whole of the card's memory */ 169 1.3.2.2 nathanw for (i = 0; i < EI_NPAGES; i++) { 170 1.3.2.2 nathanw ei_setpage(sc, i); 171 1.3.2.2 nathanw bus_space_set_region_2(sc->sc_mem_t, sc->sc_mem_h, 172 1.3.2.2 nathanw 0, 0,EI_PAGESIZE / 2); 173 1.3.2.2 nathanw } 174 1.3.2.2 nathanw 175 1.3.2.2 nathanw /* set up pointers to key structures */ 176 1.3.2.2 nathanw ei_write24(&sc->sc_ie, IE_SCP_ISCP((u_long)sc->sc_ie.scp), 177 1.3.2.2 nathanw (u_long) sc->sc_ie.iscp); 178 1.3.2.2 nathanw ei_write16(&sc->sc_ie, IE_ISCP_SCB((u_long)sc->sc_ie.iscp), 179 1.3.2.2 nathanw (u_long) sc->sc_ie.scb); 180 1.3.2.2 nathanw ei_write24(&sc->sc_ie, IE_ISCP_BASE((u_long)sc->sc_ie.iscp), 181 1.3.2.2 nathanw (u_long) sc->sc_ie.iscp); 182 1.3.2.2 nathanw 183 1.3.2.2 nathanw /* check if chip answers */ 184 1.3.2.2 nathanw if (i82586_proberam(&sc->sc_ie) == 0) { 185 1.3.2.2 nathanw printf(" memory probe failed\n"); 186 1.3.2.2 nathanw return; 187 1.3.2.2 nathanw } 188 1.3.2.2 nathanw 189 1.3.2.2 nathanw /* Read ROM */ 190 1.3.2.2 nathanw bus_space_read_region_1(sc->sc_rom_t, sc->sc_rom_h, 0, 191 1.3.2.2 nathanw sc->sc_idrom, EI_ROMSIZE); 192 1.3.2.2 nathanw 193 1.3.2.2 nathanw snprintf(descr, 15, "AKA25 iss. %d", sc->sc_idrom[EI_ROM_HWREV]); 194 1.3.2.2 nathanw i82586_attach(&sc->sc_ie, descr, sc->sc_idrom + EI_ROM_EADDR, 195 1.3.2.2 nathanw NULL, 0, 0); 196 1.3.2.2 nathanw 197 1.3.2.2 nathanw evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 198 1.3.2.2 nathanw self->dv_xname, "intr"); 199 1.3.2.2 nathanw sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_NET, i82586_intr, 200 1.3.2.2 nathanw self, &sc->sc_intrcnt); 201 1.3.2.2 nathanw ei_cli(sc); 202 1.3.2.2 nathanw } 203 1.3.2.2 nathanw 204 1.3.2.2 nathanw static void 205 1.3.2.2 nathanw ei_hwreset(struct ie_softc *sc_ie, int why) 206 1.3.2.2 nathanw { 207 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 208 1.3.2.2 nathanw 209 1.3.2.2 nathanw bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, EI_CTL_RST); 210 1.3.2.2 nathanw DELAY(1000); 211 1.3.2.2 nathanw bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, 0); 212 1.3.2.2 nathanw DELAY(1000); 213 1.3.2.2 nathanw ei_cli(sc); 214 1.3.2.2 nathanw } 215 1.3.2.2 nathanw 216 1.3.2.2 nathanw static int 217 1.3.2.2 nathanw ei_intrhook(struct ie_softc *sc_ie, int why) 218 1.3.2.2 nathanw { 219 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 220 1.3.2.2 nathanw 221 1.3.2.2 nathanw switch (why) { 222 1.3.2.2 nathanw case INTR_EXIT: 223 1.3.2.2 nathanw case INTR_ACK: 224 1.3.2.2 nathanw ei_cli(sc); 225 1.3.2.2 nathanw break; 226 1.3.2.2 nathanw } 227 1.3.2.2 nathanw return 0; 228 1.3.2.2 nathanw } 229 1.3.2.2 nathanw 230 1.3.2.2 nathanw static void 231 1.3.2.2 nathanw ei_attn(struct ie_softc *sc_ie, int why) 232 1.3.2.2 nathanw { 233 1.3.2.2 nathanw struct ei_softc *sc = (void *)sc_ie; 234 1.3.2.2 nathanw 235 1.3.2.2 nathanw bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, EI_CTL_CA); 236 1.3.2.2 nathanw } 237 1.3.2.2 nathanw 238 1.3.2.2 nathanw /* 239 1.3.2.2 nathanw * Various access functions to allow the MI 82586 driver to get at the 240 1.3.2.2 nathanw * board's memory. All memory accesses must go through these, as 241 1.3.2.2 nathanw * nothing else knows how to manipulate the page register. Note that 242 1.3.2.2 nathanw * all addresses and lengths passed in are in bytes of actual data. 243 1.3.2.2 nathanw * The bus_space functions deal in words, though, so we have to 244 1.3.2.2 nathanw * convert on the way through. 245 1.3.2.2 nathanw */ 246 1.3.2.2 nathanw 247 1.3.2.2 nathanw static void 248 1.3.2.2 nathanw ei_copyin(struct ie_softc *sc_ie, void *dest, int src, size_t size) 249 1.3.2.2 nathanw { 250 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 251 1.3.2.2 nathanw int cnt, s, extra_byte; 252 1.3.2.2 nathanw u_int16_t *wptr; 253 1.3.2.2 nathanw 254 1.3.2.2 nathanw #ifdef DIAGNOSTIC 255 1.3.2.2 nathanw if (src % 2 != 0 || !ALIGNED_POINTER(dest, u_int16_t)) 256 1.3.2.2 nathanw panic("%s: unaligned copyin", sc_ie->sc_dev.dv_xname); 257 1.3.2.2 nathanw #endif 258 1.3.2.2 nathanw wptr = dest; 259 1.3.2.2 nathanw extra_byte = size % 2; 260 1.3.2.2 nathanw size -= extra_byte; 261 1.3.2.2 nathanw while (size > 0) { 262 1.3.2.2 nathanw cnt = EI_PAGESIZE - src % EI_PAGESIZE; 263 1.3.2.2 nathanw if (cnt > size) 264 1.3.2.2 nathanw cnt = size; 265 1.3.2.2 nathanw s = splnet(); 266 1.3.2.2 nathanw ei_setpage(sc, ei_atop(src)); 267 1.3.2.2 nathanw /* bus ops are in words */ 268 1.3.2.2 nathanw bus_space_read_region_2(sc->sc_mem_t, sc->sc_mem_h, 269 1.3.2.2 nathanw ei_atopo(src) / 2, wptr, cnt / 2); 270 1.3.2.2 nathanw splx(s); 271 1.3.2.2 nathanw src += cnt; 272 1.3.2.2 nathanw wptr += cnt / 2; 273 1.3.2.2 nathanw size -= cnt; 274 1.3.2.2 nathanw } 275 1.3.2.2 nathanw if (extra_byte) { 276 1.3.2.2 nathanw /* Do we need to be this careful? */ 277 1.3.2.2 nathanw s = splnet(); 278 1.3.2.2 nathanw ei_setpage(sc, ei_atop(src)); 279 1.3.2.2 nathanw *(u_int8_t *)wptr = 280 1.3.2.2 nathanw bus_space_read_2(sc->sc_mem_t, sc->sc_mem_h, 281 1.3.2.2 nathanw ei_atopo(src) / 2) & 0xff; 282 1.3.2.2 nathanw splx(s); 283 1.3.2.2 nathanw } 284 1.3.2.2 nathanw } 285 1.3.2.2 nathanw 286 1.3.2.2 nathanw static void 287 1.3.2.2 nathanw ei_copyout(struct ie_softc *sc_ie, const void *src, int dest, size_t size) 288 1.3.2.2 nathanw { 289 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 290 1.3.2.2 nathanw int cnt, s; 291 1.3.2.2 nathanw const u_int16_t *wptr; 292 1.3.2.2 nathanw u_int16_t *bounce = NULL; 293 1.3.2.2 nathanw 294 1.3.2.2 nathanw #ifdef DIAGNOSTIC 295 1.3.2.2 nathanw if (dest % 2 != 0) 296 1.3.2.2 nathanw panic("%s: unaligned copyout", sc_ie->sc_dev.dv_xname); 297 1.3.2.2 nathanw #endif 298 1.3.2.2 nathanw if (!ALIGNED_POINTER(src, u_int16_t)) { 299 1.3.2.2 nathanw MALLOC(bounce, u_int16_t *, size, M_DEVBUF, M_NOWAIT); 300 1.3.2.2 nathanw if (bounce == NULL) 301 1.3.2.2 nathanw panic("%s: no memory to align copyout", 302 1.3.2.2 nathanw sc_ie->sc_dev.dv_xname); 303 1.3.2.2 nathanw memcpy(bounce, src, size); 304 1.3.2.2 nathanw src = bounce; 305 1.3.2.2 nathanw } 306 1.3.2.2 nathanw wptr = src; 307 1.3.2.2 nathanw if (size % 2 != 0) 308 1.3.2.2 nathanw size++; /* This is safe, since the buffer is 16bit aligned */ 309 1.3.2.2 nathanw while (size > 0) { 310 1.3.2.2 nathanw cnt = EI_PAGESIZE - dest % EI_PAGESIZE; 311 1.3.2.2 nathanw if (cnt > size) 312 1.3.2.2 nathanw cnt = size; 313 1.3.2.2 nathanw s = splnet(); 314 1.3.2.2 nathanw ei_setpage(sc, ei_atop(dest)); 315 1.3.2.2 nathanw /* bus ops are in words */ 316 1.3.2.2 nathanw bus_space_write_region_2(sc->sc_mem_t, sc->sc_mem_h, 317 1.3.2.2 nathanw ei_atopo(dest) / 2, wptr, cnt / 2); 318 1.3.2.2 nathanw splx(s); 319 1.3.2.2 nathanw wptr += cnt / 2; 320 1.3.2.2 nathanw dest += cnt; 321 1.3.2.2 nathanw size -= cnt; 322 1.3.2.2 nathanw } 323 1.3.2.2 nathanw if (bounce != NULL) 324 1.3.2.2 nathanw FREE(bounce, M_DEVBUF); 325 1.3.2.2 nathanw } 326 1.3.2.2 nathanw 327 1.3.2.2 nathanw static u_int16_t 328 1.3.2.2 nathanw ei_read16(struct ie_softc *sc_ie, int addr) 329 1.3.2.2 nathanw { 330 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 331 1.3.2.2 nathanw int result, s; 332 1.3.2.2 nathanw 333 1.3.2.2 nathanw #ifdef DIAGNOSTIC 334 1.3.2.2 nathanw if (addr % 2 != 0) 335 1.3.2.2 nathanw panic("%s: unaligned read16", sc_ie->sc_dev.dv_xname); 336 1.3.2.2 nathanw #endif 337 1.3.2.2 nathanw s = splnet(); 338 1.3.2.2 nathanw ei_setpage(sc, ei_atop(addr)); 339 1.3.2.2 nathanw result = bus_space_read_2(sc->sc_mem_t, sc->sc_mem_h, 340 1.3.2.2 nathanw ei_atopo(addr) / 2); 341 1.3.2.2 nathanw splx(s); 342 1.3.2.2 nathanw return result; 343 1.3.2.2 nathanw } 344 1.3.2.2 nathanw 345 1.3.2.2 nathanw static void 346 1.3.2.2 nathanw ei_write16(struct ie_softc *sc_ie, int addr, u_int16_t value) 347 1.3.2.2 nathanw { 348 1.3.2.2 nathanw struct ei_softc *sc = (struct ei_softc *)sc_ie; 349 1.3.2.2 nathanw int s; 350 1.3.2.2 nathanw 351 1.3.2.2 nathanw #ifdef DIAGNOSTIC 352 1.3.2.2 nathanw if (addr % 2 != 0) 353 1.3.2.2 nathanw panic("%s: unaligned write16", sc_ie->sc_dev.dv_xname); 354 1.3.2.2 nathanw #endif 355 1.3.2.2 nathanw s = splnet(); 356 1.3.2.2 nathanw ei_setpage(sc, ei_atop(addr)); 357 1.3.2.2 nathanw bus_space_write_2(sc->sc_mem_t, sc->sc_mem_h, ei_atopo(addr) / 2, 358 1.3.2.2 nathanw value); 359 1.3.2.2 nathanw splx(s); 360 1.3.2.2 nathanw } 361 1.3.2.2 nathanw 362 1.3.2.2 nathanw static void 363 1.3.2.2 nathanw ei_write24(struct ie_softc *sc_ie, int addr, int value) 364 1.3.2.2 nathanw { 365 1.3.2.2 nathanw int s; 366 1.3.2.2 nathanw 367 1.3.2.2 nathanw #ifdef DIAGNOSTIC 368 1.3.2.2 nathanw if (addr % 2 != 0) 369 1.3.2.2 nathanw panic("%s: unaligned write24", sc_ie->sc_dev.dv_xname); 370 1.3.2.2 nathanw #endif 371 1.3.2.2 nathanw s = splnet(); 372 1.3.2.2 nathanw ei_write16(sc_ie, addr, value & 0xffff); 373 1.3.2.2 nathanw ei_write16(sc_ie, addr + 2, (value >> 16) & 0xff); 374 1.3.2.2 nathanw splx(s); 375 1.3.2.2 nathanw } 376 1.3.2.2 nathanw 377
Indexes created Thu Oct 02 01:09:59 GMT 2025