bus.h revision 1.15
1 /* $NetBSD: bus.h,v 1.15 2000/07/30 23:17:23 briggs Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (C) 1997 Scott Reynolds. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. The name of the author may not be used to endorse or promote products 52 * derived from this software without specific prior written permission 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 55 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 56 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 57 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 58 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 59 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 63 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 #ifndef _MAC68K_BUS_H_ 67 #define _MAC68K_BUS_H_ 68 69 /* 70 * Value for the mac68k bus space tag, not to be used directly by MI code. 71 */ 72 #define MAC68K_BUS_SPACE_MEM 0 /* space is mem space */ 73 74 /* 75 * Bus address and size types 76 */ 77 typedef u_long bus_addr_t; 78 typedef u_long bus_size_t; 79 80 /* 81 * Access methods for bus resources and address space. 82 */ 83 #define BUS_SPACE_HANDLE_T struct bus_space_handle_s 84 typedef int bus_space_tag_t; 85 typedef struct bus_space_handle_s { 86 u_long base; 87 int swapped; 88 int stride; 89 90 u_int8_t (*bsr1) __P((bus_space_tag_t t, 91 BUS_SPACE_HANDLE_T *h, bus_size_t o)); 92 u_int16_t (*bsr2) __P((bus_space_tag_t t, 93 BUS_SPACE_HANDLE_T *h, bus_size_t o)); 94 u_int32_t (*bsr4) __P((bus_space_tag_t t, 95 BUS_SPACE_HANDLE_T *h, bus_size_t o)); 96 void (*bsrm1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 97 bus_size_t o, u_int8_t *a, size_t c)); 98 void (*bsrm2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 99 bus_size_t o, u_int16_t *a, size_t c)); 100 void (*bsrm4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 101 bus_size_t o, u_int32_t *a, size_t c)); 102 void (*bsrr1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 103 bus_size_t o, u_int8_t *a, size_t c)); 104 void (*bsrr2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 105 bus_size_t o, u_int16_t *a, size_t c)); 106 void (*bsrr4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 107 bus_size_t o, u_int32_t *a, size_t c)); 108 void (*bsw1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 109 bus_size_t o, u_int8_t v)); 110 void (*bsw2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 111 bus_size_t o, u_int16_t v)); 112 void (*bsw4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 113 bus_size_t o, u_int32_t v)); 114 void (*bswm1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 115 bus_size_t o, u_int8_t *a, size_t c)); 116 void (*bswm2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 117 bus_size_t o, u_int16_t *a, size_t c)); 118 void (*bswm4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 119 bus_size_t o, u_int32_t *a, size_t c)); 120 void (*bswr1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 121 bus_size_t o, u_int8_t *a, size_t c)); 122 void (*bswr2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 123 bus_size_t o, u_int16_t *a, size_t c)); 124 void (*bswr4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 125 bus_size_t o, u_int32_t *a, size_t c)); 126 void (*bssm1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 127 bus_size_t o, u_int8_t v, size_t c)); 128 void (*bssm2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 129 bus_size_t o, u_int16_t v, size_t c)); 130 void (*bssm4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 131 bus_size_t o, u_int32_t v, size_t c)); 132 void (*bssr1) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 133 bus_size_t o, u_int8_t v, size_t c)); 134 void (*bssr2) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 135 bus_size_t o, u_int16_t v, size_t c)); 136 void (*bssr4) __P((bus_space_tag_t t, BUS_SPACE_HANDLE_T *h, 137 bus_size_t o, u_int32_t v, size_t c)); 138 } bus_space_handle_t; 139 #undef BUS_SPACE_HANDLE_T 140 141 void mac68k_bus_space_handle_swapped __P((bus_space_tag_t t, 142 bus_space_handle_t *h)); 143 void mac68k_bus_space_handle_set_stride __P((bus_space_tag_t t, 144 bus_space_handle_t *h, int stride)); 145 146 /* 147 * int bus_space_map __P((bus_space_tag_t t, bus_addr_t addr, 148 * bus_size_t size, int flags, bus_space_handle_t *bshp)); 149 * 150 * Map a region of bus space. 151 */ 152 153 #define BUS_SPACE_MAP_CACHEABLE 0x01 154 #define BUS_SPACE_MAP_LINEAR 0x02 155 #define BUS_SPACE_MAP_PREFETCHABLE 0x04 156 157 int bus_space_map __P((bus_space_tag_t, bus_addr_t, bus_size_t, 158 int, bus_space_handle_t *)); 159 160 /* 161 * void bus_space_unmap __P((bus_space_tag_t t, 162 * bus_space_handle_t bsh, bus_size_t size)); 163 * 164 * Unmap a region of bus space. 165 */ 166 167 void bus_space_unmap __P((bus_space_tag_t, bus_space_handle_t, bus_size_t)); 168 169 /* 170 * int bus_space_subregion __P((bus_space_tag_t t, 171 * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, 172 * bus_space_handle_t *nbshp)); 173 * 174 * Get a new handle for a subregion of an already-mapped area of bus space. 175 */ 176 177 int bus_space_subregion __P((bus_space_tag_t t, bus_space_handle_t bsh, 178 bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)); 179 180 /* 181 * int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t, rstart, 182 * bus_addr_t rend, bus_size_t size, bus_size_t align, 183 * bus_size_t boundary, int flags, bus_addr_t *addrp, 184 * bus_space_handle_t *bshp)); 185 * 186 * Allocate a region of bus space. 187 */ 188 189 int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t rstart, 190 bus_addr_t rend, bus_size_t size, bus_size_t align, 191 bus_size_t boundary, int cacheable, bus_addr_t *addrp, 192 bus_space_handle_t *bshp)); 193 194 /* 195 * int bus_space_free __P((bus_space_tag_t t, 196 * bus_space_handle_t bsh, bus_size_t size)); 197 * 198 * Free a region of bus space. 199 */ 200 201 void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, 202 bus_size_t size)); 203 204 /* 205 * int mac68k_bus_space_probe __P((bus_space_tag_t t, 206 * bus_space_handle_t bsh, bus_size_t offset, int sz)); 207 * 208 * Probe the bus at t/bsh/offset, using sz as the size of the load. 209 * 210 * This is a machine-dependent extension, and is not to be used by 211 * machine-independent code. 212 */ 213 214 int mac68k_bus_space_probe __P((bus_space_tag_t t, 215 bus_space_handle_t bsh, bus_size_t offset, int sz)); 216 217 /* 218 * u_intN_t bus_space_read_N __P((bus_space_tag_t tag, 219 * bus_space_handle_t bsh, bus_size_t offset)); 220 * 221 * Read a 1, 2, 4, or 8 byte quantity from bus space 222 * described by tag/handle/offset. 223 */ 224 225 u_int8_t mac68k_bsr1 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 226 bus_size_t offset)); 227 u_int8_t mac68k_bsr1_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 228 bus_size_t offset)); 229 u_int16_t mac68k_bsr2 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 230 bus_size_t offset)); 231 u_int16_t mac68k_bsr2_swap __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 232 bus_size_t offset)); 233 u_int16_t mac68k_bsr2_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 234 bus_size_t offset)); 235 u_int32_t mac68k_bsr4 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 236 bus_size_t offset)); 237 u_int32_t mac68k_bsr4_swap __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 238 bus_size_t offset)); 239 u_int32_t mac68k_bsr4_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 240 bus_size_t offset)); 241 242 #define bus_space_read_1(t,h,o) (h).bsr1((t), &(h), (o)) 243 #define bus_space_read_2(t,h,o) (h).bsr2((t), &(h), (o)) 244 #define bus_space_read_4(t,h,o) (h).bsr4((t), &(h), (o)) 245 246 #if 0 /* Cause a link error for bus_space_read_8 */ 247 #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! 248 #endif 249 250 /* 251 * void bus_space_read_multi_N __P((bus_space_tag_t tag, 252 * bus_space_handle_t bsh, bus_size_t offset, 253 * u_intN_t *addr, size_t count)); 254 * 255 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 256 * described by tag/handle/offset and copy into buffer provided. 257 */ 258 259 void mac68k_bsrm1 __P((bus_space_tag_t t, bus_space_handle_t *h, 260 bus_size_t o, u_int8_t *a, size_t c)); 261 void mac68k_bsrm1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 262 bus_size_t o, u_int8_t *a, size_t c)); 263 void mac68k_bsrm2 __P((bus_space_tag_t t, bus_space_handle_t *h, 264 bus_size_t o, u_int16_t *a, size_t c)); 265 void mac68k_bsrm2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 266 bus_size_t o, u_int16_t *a, size_t c)); 267 void mac68k_bsrm2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 268 bus_size_t o, u_int16_t *a, size_t c)); 269 void mac68k_bsrm4 __P((bus_space_tag_t t, bus_space_handle_t *h, 270 bus_size_t o, u_int32_t *a, size_t c)); 271 void mac68k_bsrm4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 272 bus_size_t o, u_int32_t *a, size_t c)); 273 void mac68k_bsrm4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 274 bus_size_t o, u_int32_t *a, size_t c)); 275 276 #define bus_space_read_multi_1(t, h, o, a, c) \ 277 do { if (c) (h).bsrm1(t, &(h), o, a, c); } while (0) 278 #define bus_space_read_multi_2(t, h, o, a, c) \ 279 do { if (c) (h).bsrm2(t, &(h), o, a, c); } while (0) 280 #define bus_space_read_multi_4(t, h, o, a, c) \ 281 do { if (c) (h).bsrm4(t, &(h), o, a, c); } while (0) 282 283 #if 0 /* Cause a link error for bus_space_read_multi_8 */ 284 #define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! 285 #endif 286 287 /* 288 * void bus_space_read_region_N __P((bus_space_tag_t tag, 289 * bus_space_handle_t bsh, bus_size_t offset, 290 * u_intN_t *addr, size_t count)); 291 * 292 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 293 * described by tag/handle and starting at `offset' and copy into 294 * buffer provided. 295 */ 296 297 void mac68k_bsrr1 __P((bus_space_tag_t t, bus_space_handle_t *h, 298 bus_size_t o, u_int8_t *a, size_t c)); 299 void mac68k_bsrr1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 300 bus_size_t o, u_int8_t *a, size_t c)); 301 void mac68k_bsrr2 __P((bus_space_tag_t t, bus_space_handle_t *h, 302 bus_size_t o, u_int16_t *a, size_t c)); 303 void mac68k_bsrr2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 304 bus_size_t o, u_int16_t *a, size_t c)); 305 void mac68k_bsrr2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 306 bus_size_t o, u_int16_t *a, size_t c)); 307 void mac68k_bsrr4 __P((bus_space_tag_t t, bus_space_handle_t *h, 308 bus_size_t o, u_int32_t *a, size_t c)); 309 void mac68k_bsrr4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 310 bus_size_t o, u_int32_t *a, size_t c)); 311 void mac68k_bsrr4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 312 bus_size_t o, u_int32_t *a, size_t c)); 313 314 #define bus_space_read_region_1(t, h, o, a, c) \ 315 do { if (c) (h).bsrr1(t,&(h),o,a,c); } while (0) 316 #define bus_space_read_region_2(t, h, o, a, c) \ 317 do { if (c) (h).bsrr2(t,&(h),o,a,c); } while (0) 318 #define bus_space_read_region_4(t, h, o, a, c) \ 319 do { if (c) (h).bsrr4(t,&(h),o,a,c); } while (0) 320 321 #if 0 /* Cause a link error for bus_space_read_region_8 */ 322 #define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!! 323 #endif 324 325 /* 326 * void bus_space_write_N __P((bus_space_tag_t tag, 327 * bus_space_handle_t bsh, bus_size_t offset, 328 * u_intN_t value)); 329 * 330 * Write the 1, 2, 4, or 8 byte value `value' to bus space 331 * described by tag/handle/offset. 332 */ 333 334 void mac68k_bsw1 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 335 bus_size_t offset, u_int8_t v)); 336 void mac68k_bsw1_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 337 bus_size_t offset, u_int8_t v)); 338 void mac68k_bsw2 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 339 bus_size_t offset, u_int16_t v)); 340 void mac68k_bsw2_swap __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 341 bus_size_t offset, u_int16_t v)); 342 void mac68k_bsw2_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 343 bus_size_t offset, u_int16_t v)); 344 void mac68k_bsw4 __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 345 bus_size_t offset, u_int32_t v)); 346 void mac68k_bsw4_swap __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 347 bus_size_t offset, u_int32_t v)); 348 void mac68k_bsw4_gen __P((bus_space_tag_t tag, bus_space_handle_t *bsh, 349 bus_size_t offset, u_int32_t v)); 350 351 #define bus_space_write_1(t, h, o, v) (h).bsw1(t, &(h), o, v) 352 #define bus_space_write_2(t, h, o, v) (h).bsw2(t, &(h), o, v) 353 #define bus_space_write_4(t, h, o, v) (h).bsw4(t, &(h), o, v) 354 355 #if 0 /* Cause a link error for bus_space_write_8 */ 356 #define bus_space_write_8 !!! bus_space_write_8 not implemented !!! 357 #endif 358 359 /* 360 * void bus_space_write_multi_N __P((bus_space_tag_t tag, 361 * bus_space_handle_t bsh, bus_size_t offset, 362 * const u_intN_t *addr, size_t count)); 363 * 364 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer 365 * provided to bus space described by tag/handle/offset. 366 */ 367 368 void mac68k_bswm1 __P((bus_space_tag_t t, bus_space_handle_t *h, 369 bus_size_t o, u_int8_t *a, size_t c)); 370 void mac68k_bswm1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 371 bus_size_t o, u_int8_t *a, size_t c)); 372 void mac68k_bswm2 __P((bus_space_tag_t t, bus_space_handle_t *h, 373 bus_size_t o, u_int16_t *a, size_t c)); 374 void mac68k_bswm2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 375 bus_size_t o, u_int16_t *a, size_t c)); 376 void mac68k_bswm2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 377 bus_size_t o, u_int16_t *a, size_t c)); 378 void mac68k_bswm4 __P((bus_space_tag_t t, bus_space_handle_t *h, 379 bus_size_t o, u_int32_t *a, size_t c)); 380 void mac68k_bswm4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 381 bus_size_t o, u_int32_t *a, size_t c)); 382 void mac68k_bswm4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 383 bus_size_t o, u_int32_t *a, size_t c)); 384 385 #define bus_space_write_multi_1(t, h, o, a, c) \ 386 do { if (c) (h).bswm1(t, &(h), o, a, c); } while (0) 387 #define bus_space_write_multi_2(t, h, o, a, c) \ 388 do { if (c) (h).bswm2(t, &(h), o, a, c); } while (0) 389 #define bus_space_write_multi_4(t, h, o, a, c) \ 390 do { if (c) (h).bswm4(t, &(h), o, a, c); } while (0) 391 392 #if 0 /* Cause a link error for bus_space_write_8 */ 393 #define bus_space_write_multi_8(t, h, o, a, c) \ 394 !!! bus_space_write_multi_8 unimplimented !!! 395 #endif 396 397 /* 398 * void bus_space_write_region_N __P((bus_space_tag_t tag, 399 * bus_space_handle_t bsh, bus_size_t offset, 400 * const u_intN_t *addr, size_t count)); 401 * 402 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided 403 * to bus space described by tag/handle starting at `offset'. 404 */ 405 406 void mac68k_bswr1 __P((bus_space_tag_t t, bus_space_handle_t *h, 407 bus_size_t o, u_int8_t *a, size_t c)); 408 void mac68k_bswr1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 409 bus_size_t o, u_int8_t *a, size_t c)); 410 void mac68k_bswr2 __P((bus_space_tag_t t, bus_space_handle_t *h, 411 bus_size_t o, u_int16_t *a, size_t c)); 412 void mac68k_bswr2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 413 bus_size_t o, u_int16_t *a, size_t c)); 414 void mac68k_bswr2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 415 bus_size_t o, u_int16_t *a, size_t c)); 416 void mac68k_bswr4 __P((bus_space_tag_t t, bus_space_handle_t *h, 417 bus_size_t o, u_int32_t *a, size_t c)); 418 void mac68k_bswr4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 419 bus_size_t o, u_int32_t *a, size_t c)); 420 void mac68k_bswr4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 421 bus_size_t o, u_int32_t *a, size_t c)); 422 423 #define bus_space_write_region_1(t, h, o, a, c) \ 424 do { if (c) (h).bswr1(t,&(h),o,a,c); } while (0) 425 #define bus_space_write_region_2(t, h, o, a, c) \ 426 do { if (c) (h).bswr2(t,&(h),o,a,c); } while (0) 427 #define bus_space_write_region_4(t, h, o, a, c) \ 428 do { if (c) (h).bswr4(t,&(h),o,a,c); } while (0) 429 430 #if 0 /* Cause a link error for bus_space_write_region_8 */ 431 #define bus_space_write_region_8 \ 432 !!! bus_space_write_region_8 unimplemented !!! 433 #endif 434 435 /* 436 * void bus_space_set_multi_N __P((bus_space_tag_t tag, 437 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 438 * size_t count)); 439 * 440 * Write the 1, 2, 4, or 8 byte value `val' to bus space described 441 * by tag/handle/offset `count' times. 442 */ 443 444 void mac68k_bssm1 __P((bus_space_tag_t t, bus_space_handle_t *h, 445 bus_size_t o, u_int8_t v, size_t c)); 446 void mac68k_bssm1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 447 bus_size_t o, u_int8_t v, size_t c)); 448 void mac68k_bssm2 __P((bus_space_tag_t t, bus_space_handle_t *h, 449 bus_size_t o, u_int16_t v, size_t c)); 450 void mac68k_bssm2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 451 bus_size_t o, u_int16_t v, size_t c)); 452 void mac68k_bssm2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 453 bus_size_t o, u_int16_t v, size_t c)); 454 void mac68k_bssm4 __P((bus_space_tag_t t, bus_space_handle_t *h, 455 bus_size_t o, u_int32_t v, size_t c)); 456 void mac68k_bssm4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 457 bus_size_t o, u_int32_t v, size_t c)); 458 void mac68k_bssm4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 459 bus_size_t o, u_int32_t v, size_t c)); 460 461 #define bus_space_set_multi_1(t, h, o, val, c) \ 462 do { if (c) (h).bssm1(t,&(h),o,val,c); } while (0) 463 #define bus_space_set_multi_2(t, h, o, val, c) \ 464 do { if (c) (h).bssm2(t,&(h),o,val,c); } while (0) 465 #define bus_space_set_multi_4(t, h, o, val, c) \ 466 do { if (c) (h).bssm4(t,&(h),o,val,c); } while (0) 467 468 #if 0 /* Cause a link error for bus_space_set_multi_8 */ 469 #define bus_space_set_multi_8 \ 470 !!! bus_space_set_multi_8 unimplemented !!! 471 #endif 472 473 /* 474 * void bus_space_set_region_N __P((bus_space_tag_t tag, 475 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 476 * size_t count)); 477 * 478 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 479 * by tag/handle starting at `offset'. 480 */ 481 482 void mac68k_bssr1 __P((bus_space_tag_t t, bus_space_handle_t *h, 483 bus_size_t o, u_int8_t v, size_t c)); 484 void mac68k_bssr1_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 485 bus_size_t o, u_int8_t v, size_t c)); 486 void mac68k_bssr2 __P((bus_space_tag_t t, bus_space_handle_t *h, 487 bus_size_t o, u_int16_t v, size_t c)); 488 void mac68k_bssr2_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 489 bus_size_t o, u_int16_t v, size_t c)); 490 void mac68k_bssr2_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 491 bus_size_t o, u_int16_t v, size_t c)); 492 void mac68k_bssr4 __P((bus_space_tag_t t, bus_space_handle_t *h, 493 bus_size_t o, u_int32_t v, size_t c)); 494 void mac68k_bssr4_swap __P((bus_space_tag_t t, bus_space_handle_t *h, 495 bus_size_t o, u_int32_t v, size_t c)); 496 void mac68k_bssr4_gen __P((bus_space_tag_t t, bus_space_handle_t *h, 497 bus_size_t o, u_int32_t v, size_t c)); 498 499 #define bus_space_set_region_1(t, h, o, val, c) \ 500 do { if (c) (h).bssr1(t,&(h),o,val,c); } while (0) 501 #define bus_space_set_region_2(t, h, o, val, c) \ 502 do { if (c) (h).bssr2(t,&(h),o,val,c); } while (0) 503 #define bus_space_set_region_4(t, h, o, val, c) \ 504 do { if (c) (h).bssr4(t,&(h),o,val,c); } while (0) 505 506 #if 0 /* Cause a link error for bus_space_set_region_8 */ 507 #define bus_space_set_region_8 \ 508 !!! bus_space_set_region_8 unimplemented !!! 509 #endif 510 511 /* 512 * void bus_space_copy_N __P((bus_space_tag_t tag, 513 * bus_space_handle_t bsh1, bus_size_t off1, 514 * bus_space_handle_t bsh2, bus_size_t off2, 515 * size_t count)); 516 * 517 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting 518 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. 519 */ 520 521 #define __MAC68K_copy_region_N(BYTES) \ 522 static __inline void __CONCAT(bus_space_copy_region_,BYTES) \ 523 __P((bus_space_tag_t, \ 524 bus_space_handle_t bsh1, bus_size_t off1, \ 525 bus_space_handle_t bsh2, bus_size_t off2, \ 526 bus_size_t count)); \ 527 \ 528 static __inline void \ 529 __CONCAT(bus_space_copy_region_,BYTES)(t, h1, o1, h2, o2, c) \ 530 bus_space_tag_t t; \ 531 bus_space_handle_t h1, h2; \ 532 bus_size_t o1, o2, c; \ 533 { \ 534 bus_size_t o; \ 535 \ 536 if ((h1.base + o1) >= (h2.base + o2)) { \ 537 /* src after dest: copy forward */ \ 538 for (o = 0; c != 0; c--, o += BYTES) \ 539 __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ 540 __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ 541 } else { \ 542 /* dest after src: copy backwards */ \ 543 for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \ 544 __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ 545 __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ 546 } \ 547 } 548 __MAC68K_copy_region_N(1) 549 __MAC68K_copy_region_N(2) 550 __MAC68K_copy_region_N(4) 551 #if 0 /* Cause a link error for bus_space_copy_8 */ 552 #define bus_space_copy_8 \ 553 !!! bus_space_copy_8 unimplemented !!! 554 #endif 555 556 #undef __MAC68K_copy_region_N 557 558 /* 559 * Bus read/write barrier methods. 560 * 561 * void bus_space_barrier __P((bus_space_tag_t tag, 562 * bus_space_handle_t bsh, bus_size_t offset, 563 * bus_size_t len, int flags)); 564 * 565 * Note: the 680x0 does not currently require barriers, but we must 566 * provide the flags to MI code. 567 */ 568 #define bus_space_barrier(t, h, o, l, f) \ 569 ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f))) 570 #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ 571 #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ 572 573 #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) 574 575 #endif /* _MAC68K_BUS_H_ */ 576
Indexes created Mon Sep 29 21:09:56 GMT 2025