Annotation of sys/arch/luna88k/include/bus.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bus.h,v 1.3 2005/04/04 13:09:52 aoyama Exp $ */
! 2: /* $NetBSD: bus.h,v 1.9 1998/01/13 18:32:15 scottr 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) 1997 Scott Reynolds. All rights reserved.
! 43: *
! 44: * Redistribution and use in source and binary forms, with or without
! 45: * modification, are permitted provided that the following conditions
! 46: * are met:
! 47: * 1. Redistributions of source code must retain the above copyright
! 48: * notice, this list of conditions and the following disclaimer.
! 49: * 2. Redistributions in binary form must reproduce the above copyright
! 50: * notice, this list of conditions and the following disclaimer in the
! 51: * documentation and/or other materials provided with the distribution.
! 52: * 3. The name of the author may not be used to endorse or promote products
! 53: * derived from this software without specific prior written permission
! 54: *
! 55: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 56: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 57: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 58: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 59: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 60: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 61: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 62: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 63: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 64: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 65: */
! 66:
! 67: #ifndef _LUNA88K_BUS_H_
! 68: #define _LUNA88K_BUS_H_
! 69:
! 70: /*
! 71: * Bus address and size types
! 72: */
! 73: typedef u_long bus_addr_t;
! 74: typedef u_long bus_size_t;
! 75:
! 76: /*
! 77: * Access methods for bus resources and address space.
! 78: */
! 79: typedef u_long bus_space_handle_t;
! 80: typedef struct luna88k_bus_space_tag *bus_space_tag_t;
! 81:
! 82: struct luna88k_bus_space_tag {
! 83: /* 'stride' for each bytes reading/writing */
! 84: uint8_t bs_stride_1;
! 85: uint8_t bs_stride_2;
! 86: uint8_t bs_stride_4;
! 87: uint8_t bs_stride_8;
! 88: };
! 89:
! 90: /*
! 91: * int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
! 92: * bus_size_t size, int flags, bus_space_handle_t *bshp);
! 93: *
! 94: * Map a region of bus space.
! 95: */
! 96:
! 97: #define BUS_SPACE_MAP_CACHEABLE 0x01
! 98: #define BUS_SPACE_MAP_LINEAR 0x02
! 99:
! 100: int bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t,
! 101: int, bus_space_handle_t *);
! 102:
! 103: /*
! 104: * void bus_space_unmap(bus_space_tag_t t,
! 105: * bus_space_handle_t bsh, bus_size_t size);
! 106: *
! 107: * Unmap a region of bus space.
! 108: */
! 109:
! 110: void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
! 111:
! 112: /*
! 113: * int bus_space_subregion(bus_space_tag_t t,
! 114: * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
! 115: * bus_space_handle_t *nbshp);
! 116: *
! 117: * Get a new handle for a subregion of an already-mapped area of bus space.
! 118: */
! 119:
! 120: int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
! 121: bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
! 122:
! 123: /*
! 124: * int bus_space_alloc(bus_space_tag_t t, bus_addr_t, rstart,
! 125: * bus_addr_t rend, bus_size_t size, bus_size_t align,
! 126: * bus_size_t boundary, int flags, bus_addr_t *addrp,
! 127: * bus_space_handle_t *bshp);
! 128: *
! 129: * Allocate a region of bus space.
! 130: */
! 131:
! 132: int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
! 133: bus_addr_t rend, bus_size_t size, bus_size_t align,
! 134: bus_size_t boundary, int cacheable, bus_addr_t *addrp,
! 135: bus_space_handle_t *bshp);
! 136:
! 137: /*
! 138: * int bus_space_free(bus_space_tag_t t,
! 139: * bus_space_handle_t bsh, bus_size_t size);
! 140: *
! 141: * Free a region of bus space.
! 142: */
! 143:
! 144: void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
! 145: bus_size_t size);
! 146:
! 147: /*
! 148: * int luna88k_bus_space_probe(bus_space_tag_t t,
! 149: * bus_space_handle_t bsh, bus_size_t offset, int sz);
! 150: *
! 151: * Probe the bus at t/bsh/offset, using sz as the size of the load.
! 152: *
! 153: * This is a machine-dependent extension, and is not to be used by
! 154: * machine-independent code.
! 155: */
! 156:
! 157: int luna88k_bus_space_probe(bus_space_tag_t t,
! 158: bus_space_handle_t bsh, bus_size_t offset, int sz);
! 159:
! 160: /*
! 161: * u_intN_t bus_space_read_N(bus_space_tag_t tag,
! 162: * bus_space_handle_t bsh, bus_size_t offset);
! 163: *
! 164: * Read a 1, 2, 4, or 8 byte quantity from bus space
! 165: * described by tag/handle/offset.
! 166: */
! 167:
! 168: #define bus_space_read_1(t, h, o) \
! 169: (*(volatile u_int8_t *)((h) + (t->bs_stride_1) * (o)))
! 170:
! 171: #define bus_space_read_2(t, h, o) \
! 172: (*(volatile u_int16_t *)((h) + (t->bs_stride_2) * (o)))
! 173:
! 174: #define bus_space_read_4(t, h, o) \
! 175: (*(volatile u_int32_t *)((h) + (t->bs_stride_4) * (o)))
! 176:
! 177: #if 0 /* Cause a link error for bus_space_read_8 */
! 178: #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!!
! 179: #endif
! 180:
! 181: /*
! 182: * void bus_space_read_multi_N(bus_space_tag_t tag,
! 183: * bus_space_handle_t bsh, bus_size_t offset,
! 184: * u_intN_t *addr, size_t count);
! 185: *
! 186: * Read `count' 1, 2, 4, or 8 byte quantities from bus space
! 187: * described by tag/handle/offset and copy into buffer provided.
! 188: */
! 189:
! 190: static __inline__ void
! 191: bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 192: bus_addr_t offset, u_int8_t *dest, size_t count)
! 193: {
! 194: while ((int)--count >= 0)
! 195: *dest++ = bus_space_read_1(tag, handle, offset);
! 196: }
! 197:
! 198: static __inline__ void
! 199: bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 200: bus_addr_t offset, u_int16_t *dest, size_t count)
! 201: {
! 202: while ((int)--count >= 0)
! 203: *dest++ = bus_space_read_2(tag, handle, offset);
! 204: }
! 205:
! 206: static __inline__ void
! 207: bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 208: bus_addr_t offset, u_int32_t *dest, size_t count)
! 209: {
! 210: while ((int)--count >= 0)
! 211: *dest++ = bus_space_read_4(tag, handle, offset);
! 212: }
! 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: /*
! 219: * void bus_space_read_region_N(bus_space_tag_t tag,
! 220: * bus_space_handle_t bsh, bus_size_t offset,
! 221: * u_intN_t *addr, size_t count);
! 222: *
! 223: * Read `count' 1, 2, 4, or 8 byte quantities from bus space
! 224: * described by tag/handle and starting at `offset' and copy into
! 225: * buffer provided.
! 226: */
! 227:
! 228: static __inline__ void
! 229: bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 230: bus_addr_t offset, u_int8_t *dest, size_t count)
! 231: {
! 232: while ((int)--count >= 0)
! 233: *dest++ = bus_space_read_1(tag, handle, offset++);
! 234: }
! 235:
! 236: static __inline__ void
! 237: bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 238: bus_addr_t offset, u_int16_t *dest, size_t count)
! 239: {
! 240: while ((int)--count >= 0) {
! 241: *dest++ = bus_space_read_2(tag, handle, offset);
! 242: offset += 2;
! 243: }
! 244: }
! 245:
! 246: static __inline__ void
! 247: bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 248: bus_addr_t offset, u_int32_t *dest, size_t count)
! 249: {
! 250: while ((int)--count >= 0) {
! 251: *dest++ = bus_space_read_4(tag, handle, offset);
! 252: offset += 4;
! 253: }
! 254: }
! 255:
! 256: #if 0 /* Cause a link error for bus_space_read_region_8 */
! 257: #define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!!
! 258: #endif
! 259:
! 260: /*
! 261: * void bus_space_write_N(bus_space_tag_t tag,
! 262: * bus_space_handle_t bsh, bus_size_t offset,
! 263: * u_intN_t value);
! 264: *
! 265: * Write the 1, 2, 4, or 8 byte value `value' to bus space
! 266: * described by tag/handle/offset.
! 267: */
! 268:
! 269: #define bus_space_write_1(t, h, o, v) \
! 270: ((void)(*(volatile u_int8_t *)((h) + (t->bs_stride_1) * (o)) = (v)))
! 271:
! 272: #define bus_space_write_2(t, h, o, v) \
! 273: ((void)(*(volatile u_int16_t *)((h) + (t->bs_stride_2) * (o)) = (v)))
! 274:
! 275: #define bus_space_write_4(t, h, o, v) \
! 276: ((void)(*(volatile u_int32_t *)((h) + (t->bs_stride_4) * (o)) = (v)))
! 277:
! 278: #if 0 /* Cause a link error for bus_space_write_8 */
! 279: #define bus_space_write_8 !!! bus_space_write_8 not implemented !!!
! 280: #endif
! 281:
! 282: /*
! 283: * void bus_space_write_multi_N(bus_space_tag_t tag,
! 284: * bus_space_handle_t bsh, bus_size_t offset,
! 285: * const u_intN_t *addr, size_t count);
! 286: *
! 287: * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
! 288: * provided to bus space described by tag/handle/offset.
! 289: */
! 290:
! 291: static __inline__ void
! 292: bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 293: bus_addr_t offset, u_int8_t *dest, size_t count)
! 294: {
! 295: while ((int)--count >= 0)
! 296: bus_space_write_1(tag, handle, offset, *dest++);
! 297: }
! 298:
! 299: static __inline__ void
! 300: bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 301: bus_addr_t offset, u_int16_t *dest, size_t count)
! 302: {
! 303: while ((int)--count >= 0)
! 304: bus_space_write_2(tag, handle, offset, *dest++);
! 305: }
! 306:
! 307: static __inline__ void
! 308: bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 309: bus_addr_t offset, u_int32_t *dest, size_t count)
! 310: {
! 311: while ((int)--count >= 0)
! 312: bus_space_write_4(tag, handle, offset, *dest++);
! 313: }
! 314:
! 315: #if 0 /* Cause a link error for bus_space_write_8 */
! 316: #define bus_space_write_multi_8(t, h, o, a, c) \
! 317: !!! bus_space_write_multi_8 unimplemented !!!
! 318: #endif
! 319:
! 320: /*
! 321: * void bus_space_write_region_N(bus_space_tag_t tag,
! 322: * bus_space_handle_t bsh, bus_size_t offset,
! 323: * const u_intN_t *addr, size_t count);
! 324: *
! 325: * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
! 326: * to bus space described by tag/handle starting at `offset'.
! 327: */
! 328:
! 329: static __inline__ void
! 330: bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 331: bus_addr_t offset, u_int8_t *dest, size_t count)
! 332: {
! 333: while ((int)--count >= 0)
! 334: bus_space_write_1(tag, handle, offset++, *dest++);
! 335: }
! 336:
! 337: static __inline__ void
! 338: bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 339: bus_addr_t offset, u_int16_t *dest, size_t count)
! 340: {
! 341: while ((int)--count >= 0) {
! 342: bus_space_write_2(tag, handle, offset, *dest++);
! 343: offset += 2;
! 344: }
! 345: }
! 346:
! 347: static __inline__ void
! 348: bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 349: bus_addr_t offset, u_int32_t *dest, size_t count)
! 350: {
! 351: while ((int)--count >= 0) {
! 352: bus_space_write_4(tag, handle, offset, *dest++);
! 353: offset += 4;
! 354: }
! 355: }
! 356:
! 357: #if 0 /* Cause a link error for bus_space_write_region_8 */
! 358: #define bus_space_write_region_8 \
! 359: !!! bus_space_write_region_8 unimplemented !!!
! 360: #endif
! 361:
! 362: /*
! 363: * void bus_space_set_multi_N(bus_space_tag_t tag,
! 364: * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
! 365: * size_t count);
! 366: *
! 367: * Write the 1, 2, 4, or 8 byte value `val' to bus space described
! 368: * by tag/handle/offset `count' times.
! 369: */
! 370:
! 371: static __inline__ void
! 372: bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 373: bus_addr_t offset, u_int8_t value, size_t count)
! 374: {
! 375: while ((int)--count >= 0)
! 376: bus_space_write_1(tag, handle, offset, value);
! 377: }
! 378:
! 379: static __inline__ void
! 380: bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 381: bus_addr_t offset, u_int16_t value, size_t count)
! 382: {
! 383: while ((int)--count >= 0)
! 384: bus_space_write_2(tag, handle, offset, value);
! 385: }
! 386:
! 387: static __inline__ void
! 388: bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 389: bus_addr_t offset, u_int32_t value, size_t count)
! 390: {
! 391: while ((int)--count >= 0)
! 392: bus_space_write_4(tag, handle, offset, value);
! 393: }
! 394:
! 395: #if 0 /* Cause a link error for bus_space_set_multi_8 */
! 396: #define bus_space_set_multi_8 \
! 397: !!! bus_space_set_multi_8 unimplemented !!!
! 398: #endif
! 399:
! 400: /*
! 401: * void bus_space_set_region_N(bus_space_tag_t tag,
! 402: * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
! 403: * size_t count);
! 404: *
! 405: * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
! 406: * by tag/handle starting at `offset'.
! 407: */
! 408:
! 409: static __inline__ void
! 410: bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t handle,
! 411: bus_addr_t offset, u_int8_t value, size_t count)
! 412: {
! 413: while ((int)--count >= 0)
! 414: bus_space_write_1(tag, handle, offset++, value);
! 415: }
! 416:
! 417: static __inline__ void
! 418: bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t handle,
! 419: bus_addr_t offset, u_int16_t value, size_t count)
! 420: {
! 421: while ((int)--count >= 0) {
! 422: bus_space_write_2(tag, handle, offset, value);
! 423: offset += 2;
! 424: }
! 425: }
! 426:
! 427: static __inline__ void
! 428: bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t handle,
! 429: bus_addr_t offset, u_int32_t value, size_t count)
! 430: {
! 431: while ((int)--count >= 0) {
! 432: bus_space_write_4(tag, handle, offset, value);
! 433: offset += 4;
! 434: }
! 435: }
! 436:
! 437: #if 0 /* Cause a link error for bus_space_set_region_8 */
! 438: #define bus_space_set_region_8 \
! 439: !!! bus_space_set_region_8 unimplemented !!!
! 440: #endif
! 441:
! 442: /*
! 443: * void bus_space_copy_N(bus_space_tag_t tag,
! 444: * bus_space_handle_t bsh1, bus_size_t off1,
! 445: * bus_space_handle_t bsh2, bus_size_t off2,
! 446: * size_t count);
! 447: *
! 448: * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
! 449: * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
! 450: */
! 451:
! 452: #define __LUNA88K_copy_region_N(BYTES) \
! 453: static __inline void __CONCAT(bus_space_copy_region_,BYTES) \
! 454: (bus_space_tag_t, \
! 455: bus_space_handle_t bsh1, bus_size_t off1, \
! 456: bus_space_handle_t bsh2, bus_size_t off2, \
! 457: bus_size_t count); \
! 458: \
! 459: static __inline void \
! 460: __CONCAT(bus_space_copy_region_,BYTES)(t, h1, o1, h2, o2, c) \
! 461: bus_space_tag_t t; \
! 462: bus_space_handle_t h1, h2; \
! 463: bus_size_t o1, o2, c; \
! 464: { \
! 465: bus_size_t o; \
! 466: \
! 467: if ((h1 + o1) >= (h2 + o2)) { \
! 468: /* src after dest: copy forward */ \
! 469: for (o = 0; c != 0; c--, o += BYTES) \
! 470: __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
! 471: __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
! 472: } else { \
! 473: /* dest after src: copy backwards */ \
! 474: for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \
! 475: __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
! 476: __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
! 477: } \
! 478: }
! 479: __LUNA88K_copy_region_N(1)
! 480: __LUNA88K_copy_region_N(2)
! 481: __LUNA88K_copy_region_N(4)
! 482: #if 0 /* Cause a link error for bus_space_copy_8 */
! 483: #define bus_space_copy_8 \
! 484: !!! bus_space_copy_8 unimplemented !!!
! 485: #endif
! 486:
! 487: #undef __LUNA88K_copy_region_N
! 488:
! 489: /*
! 490: * Bus read/write barrier methods.
! 491: *
! 492: * void bus_space_barrier(bus_space_tag_t tag,
! 493: * bus_space_handle_t bsh, bus_size_t offset,
! 494: * bus_size_t len, int flags);
! 495: *
! 496: */
! 497: #define bus_space_barrier(t, h, o, l, f) \
! 498: ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
! 499: #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
! 500: #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
! 501:
! 502: #endif /* _LUNA88K_BUS_H_ */
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