Annotation of sys/arch/vax/include/bus.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bus.h,v 1.9 2007/04/12 12:00:03 miod Exp $ */
! 2: /* $NetBSD: bus.h,v 1.14 2000/06/26 04:56:13 simonb Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
! 10: * NASA Ames Research Center.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. All advertising materials mentioning features or use of this software
! 21: * must display the following acknowledgement:
! 22: * This product includes software developed by the NetBSD
! 23: * Foundation, Inc. and its contributors.
! 24: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 25: * contributors may be used to endorse or promote products derived
! 26: * from this software without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 38: * POSSIBILITY OF SUCH DAMAGE.
! 39: */
! 40:
! 41: /*
! 42: * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
! 43: * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
! 44: *
! 45: * Redistribution and use in source and binary forms, with or without
! 46: * modification, are permitted provided that the following conditions
! 47: * are met:
! 48: * 1. Redistributions of source code must retain the above copyright
! 49: * notice, this list of conditions and the following disclaimer.
! 50: * 2. Redistributions in binary form must reproduce the above copyright
! 51: * notice, this list of conditions and the following disclaimer in the
! 52: * documentation and/or other materials provided with the distribution.
! 53: * 3. All advertising materials mentioning features or use of this software
! 54: * must display the following acknowledgement:
! 55: * This product includes software developed by Christopher G. Demetriou
! 56: * for the NetBSD Project.
! 57: * 4. The name of the author may not be used to endorse or promote products
! 58: * derived from this software without specific prior written permission
! 59: *
! 60: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 61: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 62: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 63: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 64: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 65: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 66: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 67: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 68: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 69: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 70: */
! 71:
! 72: #ifndef _VAX_BUS_H_
! 73: #define _VAX_BUS_H_
! 74:
! 75: /*
! 76: * Bus address and size types
! 77: */
! 78: typedef u_long bus_addr_t;
! 79: typedef u_long bus_size_t;
! 80:
! 81: /*
! 82: * Access methods for bus resources and address space.
! 83: */
! 84: typedef struct vax_bus_space *bus_space_tag_t;
! 85: typedef u_long bus_space_handle_t;
! 86:
! 87: struct vax_bus_space {
! 88: /* cookie */
! 89: void *vbs_cookie;
! 90:
! 91: /* mapping/unmapping */
! 92: int (*vbs_map)(void *, bus_addr_t, bus_size_t,
! 93: int, bus_space_handle_t *, int);
! 94: void (*vbs_unmap)(void *, bus_space_handle_t,
! 95: bus_size_t, int);
! 96: int (*vbs_subregion)(void *, bus_space_handle_t,
! 97: bus_size_t, bus_size_t, bus_space_handle_t *);
! 98:
! 99: /* allocation/deallocation */
! 100: int (*vbs_alloc)(void *, bus_addr_t, bus_addr_t,
! 101: bus_size_t, bus_size_t, bus_size_t, int,
! 102: bus_addr_t *, bus_space_handle_t *);
! 103: void (*vbs_free)(void *, bus_space_handle_t,
! 104: bus_size_t);
! 105: };
! 106:
! 107: /*
! 108: * int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
! 109: * bus_size_t size, int flags, bus_space_handle_t *bshp);
! 110: *
! 111: * Map a region of bus space.
! 112: */
! 113:
! 114: #define BUS_SPACE_MAP_CACHEABLE 0x01
! 115: #define BUS_SPACE_MAP_LINEAR 0x02
! 116: #define BUS_SPACE_MAP_PREFETCHABLE 0x04
! 117:
! 118: #define bus_space_map(t, a, s, f, hp) \
! 119: (*(t)->vbs_map)((t)->vbs_cookie, (a), (s), (f), (hp), 1)
! 120: #define vax_bus_space_map_noacct(t, a, s, f, hp) \
! 121: (*(t)->vbs_map)((t)->vbs_cookie, (a), (s), (f), (hp), 0)
! 122:
! 123: /*
! 124: * int bus_space_unmap(bus_space_tag_t t,
! 125: * bus_space_handle_t bsh, bus_size_t size);
! 126: *
! 127: * Unmap a region of bus space.
! 128: */
! 129:
! 130: #define bus_space_unmap(t, h, s) \
! 131: (*(t)->vbs_unmap)((t)->vbs_cookie, (h), (s), 1)
! 132: #define vax_bus_space_unmap_noacct(t, h, s) \
! 133: (*(t)->vbs_unmap)((t)->vbs_cookie, (h), (s), 0)
! 134:
! 135: /*
! 136: * int bus_space_subregion(bus_space_tag_t t,
! 137: * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
! 138: * bus_space_handle_t *nbshp);
! 139: *
! 140: * Get a new handle for a subregion of an already-mapped area of bus space.
! 141: */
! 142:
! 143: #define bus_space_subregion(t, h, o, s, nhp) \
! 144: (*(t)->vbs_subregion)((t)->vbs_cookie, (h), (o), (s), (nhp))
! 145:
! 146: /*
! 147: * int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
! 148: * bus_addr_t rend, bus_size_t size, bus_size_t align,
! 149: * bus_size_t boundary, int flags, bus_addr_t *addrp,
! 150: * bus_space_handle_t *bshp);
! 151: *
! 152: * Allocate a region of bus space.
! 153: */
! 154:
! 155: #define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \
! 156: (*(t)->vbs_alloc)((t)->vbs_cookie, (rs), (re), (s), (a), (b), \
! 157: (f), (ap), (hp))
! 158:
! 159: /*
! 160: * int bus_space_free(bus_space_tag_t t,
! 161: * bus_space_handle_t bsh, bus_size_t size);
! 162: *
! 163: * Free a region of bus space.
! 164: */
! 165:
! 166: #define bus_space_free(t, h, s) \
! 167: (*(t)->vbs_free)((t)->vbs_cookie, (h), (s))
! 168:
! 169: /*
! 170: * u_intN_t bus_space_read_N(bus_space_tag_t tag,
! 171: * bus_space_handle_t bsh, bus_size_t offset);
! 172: *
! 173: * Read a 1, 2, 4, or 8 byte quantity from bus space
! 174: * described by tag/handle/offset.
! 175: */
! 176:
! 177: #define bus_space_read_1(t, h, o) \
! 178: (*(volatile u_int8_t *)((h) + (o)))
! 179:
! 180: #define bus_space_read_2(t, h, o) \
! 181: (*(volatile u_int16_t *)((h) + (o)))
! 182:
! 183: #define bus_space_read_4(t, h, o) \
! 184: (*(volatile u_int32_t *)((h) + (o)))
! 185:
! 186: #if 0 /* Cause a link error for bus_space_read_8 */
! 187: #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!!
! 188: #endif
! 189:
! 190: /*
! 191: * void bus_space_read_multi_N(bus_space_tag_t tag,
! 192: * bus_space_handle_t bsh, bus_size_t offset,
! 193: * u_intN_t *addr, size_t count);
! 194: *
! 195: * Read `count' 1, 2, 4, or 8 byte quantities from bus space
! 196: * described by tag/handle/offset and copy into buffer provided.
! 197: */
! 198: static __inline void vax_mem_read_multi_1(bus_space_tag_t,
! 199: bus_space_handle_t, bus_size_t, u_int8_t *, size_t);
! 200: static __inline void vax_mem_read_multi_2(bus_space_tag_t,
! 201: bus_space_handle_t, bus_size_t, u_int16_t *, size_t);
! 202: static __inline void vax_mem_read_multi_4(bus_space_tag_t,
! 203: bus_space_handle_t, bus_size_t, u_int32_t *, size_t);
! 204:
! 205: #define bus_space_read_multi_1(t, h, o, a, c) \
! 206: vax_mem_read_multi_1((t), (h), (o), (a), (c))
! 207:
! 208: #define bus_space_read_multi_2(t, h, o, a, c) \
! 209: vax_mem_read_multi_2((t), (h), (o), (a), (c))
! 210:
! 211: #define bus_space_read_multi_4(t, h, o, a, c) \
! 212: vax_mem_read_multi_4((t), (h), (o), (a), (c))
! 213:
! 214: #if 0 /* Cause a link error for bus_space_read_multi_8 */
! 215: #define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!!
! 216: #endif
! 217:
! 218: static __inline void
! 219: vax_mem_read_multi_1(t, h, o, a, c)
! 220: bus_space_tag_t t;
! 221: bus_space_handle_t h;
! 222: bus_size_t o;
! 223: u_int8_t *a;
! 224: size_t c;
! 225: {
! 226: const bus_addr_t addr = h + o;
! 227:
! 228: for (; c != 0; c--, a++)
! 229: *a = *(volatile u_int8_t *)(addr);
! 230: }
! 231:
! 232: static __inline void
! 233: vax_mem_read_multi_2(t, h, o, a, c)
! 234: bus_space_tag_t t;
! 235: bus_space_handle_t h;
! 236: bus_size_t o;
! 237: u_int16_t *a;
! 238: size_t c;
! 239: {
! 240: const bus_addr_t addr = h + o;
! 241:
! 242: for (; c != 0; c--, a++)
! 243: *a = *(volatile u_int16_t *)(addr);
! 244: }
! 245:
! 246: static __inline void
! 247: vax_mem_read_multi_4(t, h, o, a, c)
! 248: bus_space_tag_t t;
! 249: bus_space_handle_t h;
! 250: bus_size_t o;
! 251: u_int32_t *a;
! 252: size_t c;
! 253: {
! 254: const bus_addr_t addr = h + o;
! 255:
! 256: for (; c != 0; c--, a++)
! 257: *a = *(volatile u_int32_t *)(addr);
! 258: }
! 259:
! 260: /*
! 261: * void bus_space_read_region_N(bus_space_tag_t tag,
! 262: * bus_space_handle_t bsh, bus_size_t offset,
! 263: * u_intN_t *addr, size_t count);
! 264: *
! 265: * Read `count' 1, 2, 4, or 8 byte quantities from bus space
! 266: * described by tag/handle and starting at `offset' and copy into
! 267: * buffer provided.
! 268: */
! 269:
! 270: static __inline void vax_mem_read_region_1(bus_space_tag_t,
! 271: bus_space_handle_t, bus_size_t, u_int8_t *, size_t);
! 272: static __inline void vax_mem_read_region_2(bus_space_tag_t,
! 273: bus_space_handle_t, bus_size_t, u_int16_t *, size_t);
! 274: static __inline void vax_mem_read_region_4(bus_space_tag_t,
! 275: bus_space_handle_t, bus_size_t, u_int32_t *, size_t);
! 276:
! 277: #define bus_space_read_region_1(t, h, o, a, c) \
! 278: vax_mem_read_region_1((t), (h), (o), (a), (c))
! 279:
! 280: #define bus_space_read_region_2(t, h, o, a, c) \
! 281: vax_mem_read_region_2((t), (h), (o), (a), (c))
! 282:
! 283: #define bus_space_read_region_4(t, h, o, a, c) \
! 284: vax_mem_read_region_4((t), (h), (o), (a), (c))
! 285:
! 286: #if 0 /* Cause a link error for bus_space_read_region_8 */
! 287: #define bus_space_read_region_8 \
! 288: !!! bus_space_read_region_8 unimplemented !!!
! 289: #endif
! 290:
! 291: static __inline void
! 292: vax_mem_read_region_1(t, h, o, a, c)
! 293: bus_space_tag_t t;
! 294: bus_space_handle_t h;
! 295: bus_size_t o;
! 296: u_int8_t *a;
! 297: size_t c;
! 298: {
! 299: bus_addr_t addr = h + o;
! 300:
! 301: for (; c != 0; c--, addr++, a++)
! 302: *a = *(volatile u_int8_t *)(addr);
! 303: }
! 304:
! 305: static __inline void
! 306: vax_mem_read_region_2(t, h, o, a, c)
! 307: bus_space_tag_t t;
! 308: bus_space_handle_t h;
! 309: bus_size_t o;
! 310: u_int16_t *a;
! 311: size_t c;
! 312: {
! 313: bus_addr_t addr = h + o;
! 314:
! 315: for (; c != 0; c--, addr++, a++)
! 316: *a = *(volatile u_int16_t *)(addr);
! 317: }
! 318:
! 319: static __inline void
! 320: vax_mem_read_region_4(t, h, o, a, c)
! 321: bus_space_tag_t t;
! 322: bus_space_handle_t h;
! 323: bus_size_t o;
! 324: u_int32_t *a;
! 325: size_t c;
! 326: {
! 327: bus_addr_t addr = h + o;
! 328:
! 329: for (; c != 0; c--, addr++, a++)
! 330: *a = *(volatile u_int32_t *)(addr);
! 331: }
! 332:
! 333: /*
! 334: * void bus_space_write_N(bus_space_tag_t tag,
! 335: * bus_space_handle_t bsh, bus_size_t offset,
! 336: * u_intN_t value);
! 337: *
! 338: * Write the 1, 2, 4, or 8 byte value `value' to bus space
! 339: * described by tag/handle/offset.
! 340: */
! 341:
! 342: #define bus_space_write_1(t, h, o, v) \
! 343: ((void)(*(volatile u_int8_t *)((h) + (o)) = (v)))
! 344:
! 345: #define bus_space_write_2(t, h, o, v) \
! 346: ((void)(*(volatile u_int16_t *)((h) + (o)) = (v)))
! 347:
! 348: #define bus_space_write_4(t, h, o, v) \
! 349: ((void)(*(volatile u_int32_t *)((h) + (o)) = (v)))
! 350:
! 351: #if 0 /* Cause a link error for bus_space_write_8 */
! 352: #define bus_space_write_8 !!! bus_space_write_8 not implemented !!!
! 353: #endif
! 354:
! 355: /*
! 356: * void bus_space_write_multi_N(bus_space_tag_t tag,
! 357: * bus_space_handle_t bsh, bus_size_t offset,
! 358: * const u_intN_t *addr, size_t count);
! 359: *
! 360: * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
! 361: * provided to bus space described by tag/handle/offset.
! 362: */
! 363: static __inline void vax_mem_write_multi_1(bus_space_tag_t,
! 364: bus_space_handle_t, bus_size_t, const u_int8_t *, size_t);
! 365: static __inline void vax_mem_write_multi_2(bus_space_tag_t,
! 366: bus_space_handle_t, bus_size_t, const u_int16_t *, size_t);
! 367: static __inline void vax_mem_write_multi_4(bus_space_tag_t,
! 368: bus_space_handle_t, bus_size_t, const u_int32_t *, size_t);
! 369:
! 370: #define bus_space_write_multi_1(t, h, o, a, c) \
! 371: vax_mem_write_multi_1((t), (h), (o), (a), (c))
! 372:
! 373: #define bus_space_write_multi_2(t, h, o, a, c) \
! 374: vax_mem_write_multi_2((t), (h), (o), (a), (c))
! 375:
! 376: #define bus_space_write_multi_4(t, h, o, a, c) \
! 377: vax_mem_write_multi_4((t), (h), (o), (a), (c))
! 378:
! 379: #if 0 /* Cause a link error for bus_space_write_multi_8 */
! 380: #define bus_space_write_multi_8(t, h, o, a, c) \
! 381: !!! bus_space_write_multi_8 unimplemented !!!
! 382: #endif
! 383:
! 384: static __inline void
! 385: vax_mem_write_multi_1(t, h, o, a, c)
! 386: bus_space_tag_t t;
! 387: bus_space_handle_t h;
! 388: bus_size_t o;
! 389: const u_int8_t *a;
! 390: size_t c;
! 391: {
! 392: const bus_addr_t addr = h + o;
! 393:
! 394: for (; c != 0; c--, a++)
! 395: *(volatile u_int8_t *)(addr) = *a;
! 396: }
! 397:
! 398: static __inline void
! 399: vax_mem_write_multi_2(t, h, o, a, c)
! 400: bus_space_tag_t t;
! 401: bus_space_handle_t h;
! 402: bus_size_t o;
! 403: const u_int16_t *a;
! 404: size_t c;
! 405: {
! 406: const bus_addr_t addr = h + o;
! 407:
! 408: for (; c != 0; c--, a++)
! 409: *(volatile u_int16_t *)(addr) = *a;
! 410: }
! 411:
! 412: static __inline void
! 413: vax_mem_write_multi_4(t, h, o, a, c)
! 414: bus_space_tag_t t;
! 415: bus_space_handle_t h;
! 416: bus_size_t o;
! 417: const u_int32_t *a;
! 418: size_t c;
! 419: {
! 420: const bus_addr_t addr = h + o;
! 421:
! 422: for (; c != 0; c--, a++)
! 423: *(volatile u_int32_t *)(addr) = *a;
! 424: }
! 425:
! 426: /*
! 427: * void bus_space_write_region_N(bus_space_tag_t tag,
! 428: * bus_space_handle_t bsh, bus_size_t offset,
! 429: * const u_intN_t *addr, size_t count);
! 430: *
! 431: * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
! 432: * to bus space described by tag/handle starting at `offset'.
! 433: */
! 434: static __inline void vax_mem_write_region_1(bus_space_tag_t,
! 435: bus_space_handle_t, bus_size_t, const u_int8_t *, size_t);
! 436: static __inline void vax_mem_write_region_2(bus_space_tag_t,
! 437: bus_space_handle_t, bus_size_t, const u_int16_t *, size_t);
! 438: static __inline void vax_mem_write_region_4(bus_space_tag_t,
! 439: bus_space_handle_t, bus_size_t, const u_int32_t *, size_t);
! 440:
! 441: #define bus_space_write_region_1(t, h, o, a, c) \
! 442: vax_mem_write_region_1((t), (h), (o), (a), (c))
! 443:
! 444: #define bus_space_write_region_2(t, h, o, a, c) \
! 445: vax_mem_write_region_2((t), (h), (o), (a), (c))
! 446:
! 447: #define bus_space_write_region_4(t, h, o, a, c) \
! 448: vax_mem_write_region_4((t), (h), (o), (a), (c))
! 449:
! 450: #if 0 /* Cause a link error for bus_space_write_region_8 */
! 451: #define bus_space_write_region_8 \
! 452: !!! bus_space_write_region_8 unimplemented !!!
! 453: #endif
! 454:
! 455: static __inline void
! 456: vax_mem_write_region_1(t, h, o, a, c)
! 457: bus_space_tag_t t;
! 458: bus_space_handle_t h;
! 459: bus_size_t o;
! 460: const u_int8_t *a;
! 461: size_t c;
! 462: {
! 463: bus_addr_t addr = h + o;
! 464:
! 465: for (; c != 0; c--, addr++, a++)
! 466: *(volatile u_int8_t *)(addr) = *a;
! 467: }
! 468:
! 469: static __inline void
! 470: vax_mem_write_region_2(t, h, o, a, c)
! 471: bus_space_tag_t t;
! 472: bus_space_handle_t h;
! 473: bus_size_t o;
! 474: const u_int16_t *a;
! 475: size_t c;
! 476: {
! 477: bus_addr_t addr = h + o;
! 478:
! 479: for (; c != 0; c--, addr++, a++)
! 480: *(volatile u_int16_t *)(addr) = *a;
! 481: }
! 482:
! 483: static __inline void
! 484: vax_mem_write_region_4(t, h, o, a, c)
! 485: bus_space_tag_t t;
! 486: bus_space_handle_t h;
! 487: bus_size_t o;
! 488: const u_int32_t *a;
! 489: size_t c;
! 490: {
! 491: bus_addr_t addr = h + o;
! 492:
! 493: for (; c != 0; c--, addr++, a++)
! 494: *(volatile u_int32_t *)(addr) = *a;
! 495: }
! 496:
! 497: /*
! 498: * void bus_space_set_multi_N(bus_space_tag_t tag,
! 499: * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
! 500: * size_t count);
! 501: *
! 502: * Write the 1, 2, 4, or 8 byte value `val' to bus space described
! 503: * by tag/handle/offset `count' times.
! 504: */
! 505:
! 506: static __inline void vax_mem_set_multi_1(bus_space_tag_t,
! 507: bus_space_handle_t, bus_size_t, u_int8_t, size_t);
! 508: static __inline void vax_mem_set_multi_2(bus_space_tag_t,
! 509: bus_space_handle_t, bus_size_t, u_int16_t, size_t);
! 510: static __inline void vax_mem_set_multi_4(bus_space_tag_t,
! 511: bus_space_handle_t, bus_size_t, u_int32_t, size_t);
! 512:
! 513: #define bus_space_set_multi_1(t, h, o, v, c) \
! 514: vax_mem_set_multi_1((t), (h), (o), (v), (c))
! 515:
! 516: #define bus_space_set_multi_2(t, h, o, v, c) \
! 517: vax_mem_set_multi_2((t), (h), (o), (v), (c))
! 518:
! 519: #define bus_space_set_multi_4(t, h, o, v, c) \
! 520: vax_mem_set_multi_4((t), (h), (o), (v), (c))
! 521:
! 522: static __inline void
! 523: vax_mem_set_multi_1(t, h, o, v, c)
! 524: bus_space_tag_t t;
! 525: bus_space_handle_t h;
! 526: bus_size_t o;
! 527: u_int8_t v;
! 528: size_t c;
! 529: {
! 530: bus_addr_t addr = h + o;
! 531:
! 532: while (c--)
! 533: *(volatile u_int8_t *)(addr) = v;
! 534: }
! 535:
! 536: static __inline void
! 537: vax_mem_set_multi_2(t, h, o, v, c)
! 538: bus_space_tag_t t;
! 539: bus_space_handle_t h;
! 540: bus_size_t o;
! 541: u_int16_t v;
! 542: size_t c;
! 543: {
! 544: bus_addr_t addr = h + o;
! 545:
! 546: while (c--)
! 547: *(volatile u_int16_t *)(addr) = v;
! 548: }
! 549:
! 550: static __inline void
! 551: vax_mem_set_multi_4(t, h, o, v, c)
! 552: bus_space_tag_t t;
! 553: bus_space_handle_t h;
! 554: bus_size_t o;
! 555: u_int32_t v;
! 556: size_t c;
! 557: {
! 558: bus_addr_t addr = h + o;
! 559:
! 560: while (c--)
! 561: *(volatile u_int32_t *)(addr) = v;
! 562: }
! 563:
! 564: #if 0 /* Cause a link error for bus_space_set_multi_8 */
! 565: #define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
! 566: #endif
! 567:
! 568: /*
! 569: * void bus_space_set_region_N(bus_space_tag_t tag,
! 570: * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
! 571: * size_t count);
! 572: *
! 573: * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
! 574: * by tag/handle starting at `offset'.
! 575: */
! 576:
! 577: static __inline void vax_mem_set_region_1(bus_space_tag_t,
! 578: bus_space_handle_t, bus_size_t, u_int8_t, size_t);
! 579: static __inline void vax_mem_set_region_2(bus_space_tag_t,
! 580: bus_space_handle_t, bus_size_t, u_int16_t, size_t);
! 581: static __inline void vax_mem_set_region_4(bus_space_tag_t,
! 582: bus_space_handle_t, bus_size_t, u_int32_t, size_t);
! 583:
! 584: #define bus_space_set_region_1(t, h, o, v, c) \
! 585: vax_mem_set_region_1((t), (h), (o), (v), (c))
! 586:
! 587: #define bus_space_set_region_2(t, h, o, v, c) \
! 588: vax_mem_set_region_2((t), (h), (o), (v), (c))
! 589:
! 590: #define bus_space_set_region_4(t, h, o, v, c) \
! 591: vax_mem_set_region_4((t), (h), (o), (v), (c))
! 592:
! 593: static __inline void
! 594: vax_mem_set_region_1(t, h, o, v, c)
! 595: bus_space_tag_t t;
! 596: bus_space_handle_t h;
! 597: bus_size_t o;
! 598: u_int8_t v;
! 599: size_t c;
! 600: {
! 601: bus_addr_t addr = h + o;
! 602:
! 603: for (; c != 0; c--, addr++)
! 604: *(volatile u_int8_t *)(addr) = v;
! 605: }
! 606:
! 607: static __inline void
! 608: vax_mem_set_region_2(t, h, o, v, c)
! 609: bus_space_tag_t t;
! 610: bus_space_handle_t h;
! 611: bus_size_t o;
! 612: u_int16_t v;
! 613: size_t c;
! 614: {
! 615: bus_addr_t addr = h + o;
! 616:
! 617: for (; c != 0; c--, addr += 2)
! 618: *(volatile u_int16_t *)(addr) = v;
! 619: }
! 620:
! 621: static __inline void
! 622: vax_mem_set_region_4(t, h, o, v, c)
! 623: bus_space_tag_t t;
! 624: bus_space_handle_t h;
! 625: bus_size_t o;
! 626: u_int32_t v;
! 627: size_t c;
! 628: {
! 629: bus_addr_t addr = h + o;
! 630:
! 631: for (; c != 0; c--, addr += 4)
! 632: *(volatile u_int32_t *)(addr) = v;
! 633: }
! 634:
! 635: #if 0 /* Cause a link error for bus_space_set_region_8 */
! 636: #define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
! 637: #endif
! 638:
! 639: /*
! 640: * void bus_space_copy_region_N(bus_space_tag_t tag,
! 641: * bus_space_handle_t bsh1, bus_size_t off1,
! 642: * bus_space_handle_t bsh2, bus_size_t off2,
! 643: * size_t count);
! 644: *
! 645: * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
! 646: * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
! 647: */
! 648:
! 649: static __inline void vax_mem_copy_region_1(bus_space_tag_t,
! 650: bus_space_handle_t, bus_size_t, bus_space_handle_t,
! 651: bus_size_t, size_t);
! 652: static __inline void vax_mem_copy_region_2(bus_space_tag_t,
! 653: bus_space_handle_t, bus_size_t, bus_space_handle_t,
! 654: bus_size_t, size_t);
! 655: static __inline void vax_mem_copy_region_4(bus_space_tag_t,
! 656: bus_space_handle_t, bus_size_t, bus_space_handle_t,
! 657: bus_size_t, size_t);
! 658:
! 659: #define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
! 660: vax_mem_copy_region_1((t), (h1), (o1), (h2), (o2), (c))
! 661:
! 662: #define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
! 663: vax_mem_copy_region_2((t), (h1), (o1), (h2), (o2), (c))
! 664:
! 665: #define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
! 666: vax_mem_copy_region_4((t), (h1), (o1), (h2), (o2), (c))
! 667:
! 668: static __inline void
! 669: vax_mem_copy_region_1(t, h1, o1, h2, o2, c)
! 670: bus_space_tag_t t;
! 671: bus_space_handle_t h1;
! 672: bus_size_t o1;
! 673: bus_space_handle_t h2;
! 674: bus_size_t o2;
! 675: size_t c;
! 676: {
! 677: bus_addr_t addr1 = h1 + o1;
! 678: bus_addr_t addr2 = h2 + o2;
! 679:
! 680: if (addr1 >= addr2) {
! 681: /* src after dest: copy forward */
! 682: for (; c != 0; c--, addr1++, addr2++)
! 683: *(volatile u_int8_t *)(addr2) =
! 684: *(volatile u_int8_t *)(addr1);
! 685: } else {
! 686: /* dest after src: copy backwards */
! 687: for (addr1 += (c - 1), addr2 += (c - 1);
! 688: c != 0; c--, addr1--, addr2--)
! 689: *(volatile u_int8_t *)(addr2) =
! 690: *(volatile u_int8_t *)(addr1);
! 691: }
! 692: }
! 693:
! 694: static __inline void
! 695: vax_mem_copy_region_2(t, h1, o1, h2, o2, c)
! 696: bus_space_tag_t t;
! 697: bus_space_handle_t h1;
! 698: bus_size_t o1;
! 699: bus_space_handle_t h2;
! 700: bus_size_t o2;
! 701: size_t c;
! 702: {
! 703: bus_addr_t addr1 = h1 + o1;
! 704: bus_addr_t addr2 = h2 + o2;
! 705:
! 706: if (addr1 >= addr2) {
! 707: /* src after dest: copy forward */
! 708: for (; c != 0; c--, addr1 += 2, addr2 += 2)
! 709: *(volatile u_int16_t *)(addr2) =
! 710: *(volatile u_int16_t *)(addr1);
! 711: } else {
! 712: /* dest after src: copy backwards */
! 713: for (addr1 += 2 * (c - 1), addr2 += 2 * (c - 1);
! 714: c != 0; c--, addr1 -= 2, addr2 -= 2)
! 715: *(volatile u_int16_t *)(addr2) =
! 716: *(volatile u_int16_t *)(addr1);
! 717: }
! 718: }
! 719:
! 720: static __inline void
! 721: vax_mem_copy_region_4(t, h1, o1, h2, o2, c)
! 722: bus_space_tag_t t;
! 723: bus_space_handle_t h1;
! 724: bus_size_t o1;
! 725: bus_space_handle_t h2;
! 726: bus_size_t o2;
! 727: size_t c;
! 728: {
! 729: bus_addr_t addr1 = h1 + o1;
! 730: bus_addr_t addr2 = h2 + o2;
! 731:
! 732: if (addr1 >= addr2) {
! 733: /* src after dest: copy forward */
! 734: for (; c != 0; c--, addr1 += 4, addr2 += 4)
! 735: *(volatile u_int32_t *)(addr2) =
! 736: *(volatile u_int32_t *)(addr1);
! 737: } else {
! 738: /* dest after src: copy backwards */
! 739: for (addr1 += 4 * (c - 1), addr2 += 4 * (c - 1);
! 740: c != 0; c--, addr1 -= 4, addr2 -= 4)
! 741: *(volatile u_int32_t *)(addr2) =
! 742: *(volatile u_int32_t *)(addr1);
! 743: }
! 744: }
! 745:
! 746: #if 0 /* Cause a link error for bus_space_copy_8 */
! 747: #define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!!
! 748: #endif
! 749:
! 750:
! 751: /*
! 752: * Bus read/write barrier methods.
! 753: *
! 754: * void bus_space_barrier(bus_space_tag_t tag,
! 755: * bus_space_handle_t bsh, bus_size_t offset,
! 756: * bus_size_t len, int flags);
! 757: *
! 758: * Note: the vax does not currently require barriers, but we must
! 759: * provide the flags to MI code.
! 760: */
! 761: #define bus_space_barrier(t, h, o, l, f) \
! 762: ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
! 763: #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
! 764: #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
! 765:
! 766:
! 767: /*
! 768: * Flags used in various bus DMA methods.
! 769: */
! 770: #define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
! 771: #define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
! 772: #define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
! 773: #define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */
! 774: #define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */
! 775: #define BUS_DMA_BUS2 0x020
! 776: #define BUS_DMA_BUS3 0x040
! 777: #define BUS_DMA_BUS4 0x080
! 778: #define BUS_DMA_STREAMING 0x100 /* hint: sequential, unidirectional */
! 779: #define BUS_DMA_READ 0x200 /* mapping is device -> memory only */
! 780: #define BUS_DMA_WRITE 0x400 /* mapping is memory -> device only */
! 781:
! 782: #define VAX_BUS_DMA_SPILLPAGE BUS_DMA_BUS1 /* VS4000 kludge */
! 783: /*
! 784: * Private flags stored in the DMA map.
! 785: */
! 786: #define DMAMAP_HAS_SGMAP 0x80000000 /* sgva/len are valid */
! 787:
! 788: /* Forwards needed by prototypes below. */
! 789: struct mbuf;
! 790: struct uio;
! 791: struct vax_sgmap;
! 792:
! 793: /*
! 794: * Operations performed by bus_dmamap_sync().
! 795: */
! 796: #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
! 797: #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
! 798: #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
! 799: #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
! 800:
! 801: /*
! 802: * vax_bus_t
! 803: *
! 804: * Busses supported by NetBSD/vax, used by internal
! 805: * utility functions. NOT TO BE USED BY MACHINE-INDEPENDENT
! 806: * CODE!
! 807: */
! 808: typedef enum {
! 809: VAX_BUS_MAINBUS,
! 810: VAX_BUS_SBI,
! 811: VAX_BUS_MASSBUS,
! 812: VAX_BUS_UNIBUS, /* Also handles QBUS */
! 813: VAX_BUS_BI,
! 814: VAX_BUS_XMI,
! 815: VAX_BUS_TURBOCHANNEL
! 816: } vax_bus_t;
! 817:
! 818: typedef struct vax_bus_dma_tag *bus_dma_tag_t;
! 819: typedef struct vax_bus_dmamap *bus_dmamap_t;
! 820:
! 821: /*
! 822: * bus_dma_segment_t
! 823: *
! 824: * Describes a single contiguous DMA transaction. Values
! 825: * are suitable for programming into DMA registers.
! 826: */
! 827: struct vax_bus_dma_segment {
! 828: bus_addr_t ds_addr; /* DMA address */
! 829: bus_size_t ds_len; /* length of transfer */
! 830: };
! 831: typedef struct vax_bus_dma_segment bus_dma_segment_t;
! 832:
! 833: struct proc;
! 834:
! 835: /*
! 836: * bus_dma_tag_t
! 837: *
! 838: * A machine-dependent opaque type describing the implementation of
! 839: * DMA for a given bus.
! 840: */
! 841: struct vax_bus_dma_tag {
! 842: void *_cookie; /* cookie used in the guts */
! 843: bus_addr_t _wbase; /* DMA window base */
! 844: bus_size_t _wsize; /* DMA window size */
! 845:
! 846: /*
! 847: * Some chipsets have a built-in boundary constraint, independent
! 848: * of what the device requests. This allows that boundary to
! 849: * be specified. If the device has a more restrictive contraint,
! 850: * the map will use that, otherwise this boundary will be used.
! 851: * This value is ignored if 0.
! 852: */
! 853: bus_size_t _boundary;
! 854:
! 855: /*
! 856: * A bus may have more than one SGMAP window, so SGMAP
! 857: * windows also get a pointer to their SGMAP state.
! 858: */
! 859: struct vax_sgmap *_sgmap;
! 860:
! 861: /*
! 862: * Internal-use only utility methods. NOT TO BE USED BY
! 863: * MACHINE-INDEPENDENT CODE!
! 864: */
! 865: bus_dma_tag_t (*_get_tag)(bus_dma_tag_t, vax_bus_t);
! 866:
! 867: /*
! 868: * DMA mapping methods.
! 869: */
! 870: int (*_dmamap_create)(bus_dma_tag_t, bus_size_t, int,
! 871: bus_size_t, bus_size_t, int, bus_dmamap_t *);
! 872: void (*_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
! 873: int (*_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
! 874: bus_size_t, struct proc *, int);
! 875: int (*_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
! 876: struct mbuf *, int);
! 877: int (*_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t,
! 878: struct uio *, int);
! 879: int (*_dmamap_load_raw)(bus_dma_tag_t, bus_dmamap_t,
! 880: bus_dma_segment_t *, int, bus_size_t, int);
! 881: void (*_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
! 882: void (*_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
! 883: bus_addr_t, bus_size_t, int);
! 884:
! 885: /*
! 886: * DMA memory utility functions.
! 887: */
! 888: int (*_dmamem_alloc)(bus_dma_tag_t, bus_size_t, bus_size_t,
! 889: bus_size_t, bus_dma_segment_t *, int, int *, int);
! 890: void (*_dmamem_free)(bus_dma_tag_t,
! 891: bus_dma_segment_t *, int);
! 892: int (*_dmamem_map)(bus_dma_tag_t, bus_dma_segment_t *,
! 893: int, size_t, caddr_t *, int);
! 894: void (*_dmamem_unmap)(bus_dma_tag_t, caddr_t, size_t);
! 895: paddr_t (*_dmamem_mmap)(bus_dma_tag_t, bus_dma_segment_t *,
! 896: int, off_t, int, int);
! 897: };
! 898:
! 899: #define vaxbus_dma_get_tag(t, b) \
! 900: (*(t)->_get_tag)(t, b)
! 901:
! 902: #define bus_dmamap_create(t, s, n, m, b, f, p) \
! 903: (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p))
! 904: #define bus_dmamap_destroy(t, p) \
! 905: (*(t)->_dmamap_destroy)((t), (p))
! 906: #define bus_dmamap_load(t, m, b, s, p, f) \
! 907: (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f))
! 908: #define bus_dmamap_load_mbuf(t, m, b, f) \
! 909: (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f))
! 910: #define bus_dmamap_load_uio(t, m, u, f) \
! 911: (*(t)->_dmamap_load_uio)((t), (m), (u), (f))
! 912: #define bus_dmamap_load_raw(t, m, sg, n, s, f) \
! 913: (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f))
! 914: #define bus_dmamap_unload(t, p) \
! 915: (*(t)->_dmamap_unload)((t), (p))
! 916: #define bus_dmamap_sync(t, p, o, l, ops) \
! 917: (*(t)->_dmamap_sync)((t), (p), (o), (l), (ops))
! 918: #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
! 919: (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
! 920: #define bus_dmamem_free(t, sg, n) \
! 921: (*(t)->_dmamem_free)((t), (sg), (n))
! 922: #define bus_dmamem_map(t, sg, n, s, k, f) \
! 923: (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
! 924: #define bus_dmamem_unmap(t, k, s) \
! 925: (*(t)->_dmamem_unmap)((t), (k), (s))
! 926: #define bus_dmamem_mmap(t, sg, n, o, p, f) \
! 927: (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
! 928:
! 929: /*
! 930: * bus_dmamap_t
! 931: *
! 932: * Describes a DMA mapping.
! 933: */
! 934: struct vax_bus_dmamap {
! 935: /*
! 936: * PRIVATE MEMBERS: not for use by machine-independent code.
! 937: */
! 938: bus_size_t _dm_size; /* largest DMA transfer mappable */
! 939: int _dm_segcnt; /* number of segs this map can map */
! 940: bus_size_t _dm_maxsegsz; /* largest possible segment */
! 941: bus_size_t _dm_boundary; /* don't cross this */
! 942: int _dm_flags; /* misc. flags */
! 943:
! 944: /*
! 945: * This is used only for SGMAP-mapped DMA, but we keep it
! 946: * here to avoid pointless indirection.
! 947: */
! 948: int _dm_pteidx; /* PTE index */
! 949: int _dm_ptecnt; /* PTE count */
! 950: u_long _dm_sgva; /* allocated sgva */
! 951: bus_size_t _dm_sgvalen; /* svga length */
! 952:
! 953: /*
! 954: * PUBLIC MEMBERS: these are used by machine-independent code.
! 955: */
! 956: bus_size_t dm_mapsize; /* size of the mapping */
! 957: int dm_nsegs; /* # valid segments in mapping */
! 958: bus_dma_segment_t dm_segs[1]; /* segments; variable length */
! 959: };
! 960:
! 961: #ifdef _VAX_BUS_DMA_PRIVATE
! 962: int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
! 963: bus_size_t, int, bus_dmamap_t *);
! 964: void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
! 965:
! 966: int _bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t,
! 967: void *, bus_size_t, struct proc *, int);
! 968: int _bus_dmamap_load_mbuf(bus_dma_tag_t,
! 969: bus_dmamap_t, struct mbuf *, int);
! 970: int _bus_dmamap_load_uio(bus_dma_tag_t,
! 971: bus_dmamap_t, struct uio *, int);
! 972: int _bus_dmamap_load_raw(bus_dma_tag_t,
! 973: bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int);
! 974:
! 975: void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
! 976: void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
! 977: bus_size_t, int);
! 978:
! 979: int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size,
! 980: bus_size_t alignment, bus_size_t boundary,
! 981: bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags);
! 982: void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs,
! 983: int nsegs);
! 984: int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs,
! 985: int nsegs, size_t size, caddr_t *kvap, int flags);
! 986: void _bus_dmamem_unmap(bus_dma_tag_t tag, caddr_t kva,
! 987: size_t size);
! 988: paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs,
! 989: int nsegs, off_t off, int prot, int flags);
! 990: #endif /* _VAX_BUS_DMA_PRIVATE */
! 991:
! 992: #endif /* _VAX_BUS_H_ */
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