sys/arch/mac68k/include/bus.h

   1 /*      $NetBSD: bus.h,v 1.25 2006/09/09 06:01:48 tsutsui 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  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Copyright (C) 1997 Scott Reynolds.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. The name of the author may not be used to endorse or promote products
  45  *    derived from this software without specific prior written permission
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  48  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  49  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  50  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  51  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  52  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  53  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  54  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  55  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  56  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  57  */
  58
  59 #ifndef _MAC68K_BUS_H_
  60 #define _MAC68K_BUS_H_
  61
  62 /*
  63  * Value for the mac68k bus space tag, not to be used directly by MI code.
  64  */
  65 #define MAC68K_BUS_SPACE_MEM    0       /* space is mem space */
  66
  67 #define __BUS_SPACE_HAS_STREAM_METHODS 1
  68
  69 /*
  70  * Bus address and size types
  71  */
  72 typedef u_long bus_addr_t;
  73 typedef u_long bus_size_t;
  74
  75 /*
  76  * Access methods for bus resources and address space.
  77  */
  78 #define BSH_T   struct bus_space_handle_s
  79 typedef int     bus_space_tag_t;
  80 typedef struct bus_space_handle_s {
  81         u_long  base;
  82         int     swapped;
  83         int     stride;
  84
  85         u_int8_t        (*bsr1)(bus_space_tag_t, BSH_T *, bus_size_t);
  86         u_int16_t       (*bsr2)(bus_space_tag_t, BSH_T *, bus_size_t);
  87         u_int32_t       (*bsr4)(bus_space_tag_t, BSH_T *, bus_size_t);
  88         u_int8_t        (*bsrs1)(bus_space_tag_t, BSH_T *, bus_size_t);
  89         u_int16_t       (*bsrs2)(bus_space_tag_t, BSH_T *, bus_size_t);
  90         u_int32_t       (*bsrs4)(bus_space_tag_t, BSH_T *, bus_size_t);
  91         void            (*bsrm1)(bus_space_tag_t, BSH_T *, bus_size_t,
  92                                  u_int8_t *, size_t);
  93         void            (*bsrm2)(bus_space_tag_t, BSH_T *, bus_size_t,
  94                                  u_int16_t *, size_t);
  95         void            (*bsrm4)(bus_space_tag_t, BSH_T *, bus_size_t,
  96                                  u_int32_t *, size_t);
  97         void            (*bsrms1)(bus_space_tag_t, BSH_T *, bus_size_t,
  98                                   u_int8_t *, size_t);
  99         void            (*bsrms2)(bus_space_tag_t, BSH_T *, bus_size_t,
 100                                   u_int16_t *, size_t);
 101         void            (*bsrms4)(bus_space_tag_t, BSH_T *, bus_size_t,
 102                                   u_int32_t *, size_t);
 103         void            (*bsrr1)(bus_space_tag_t, BSH_T *, bus_size_t,
 104                                  u_int8_t *, size_t);
 105         void            (*bsrr2)(bus_space_tag_t, BSH_T *, bus_size_t,
 106                                  u_int16_t *, size_t);
 107         void            (*bsrr4)(bus_space_tag_t, BSH_T *, bus_size_t,
 108                                  u_int32_t *, size_t);
 109         void            (*bsrrs1)(bus_space_tag_t, BSH_T *, bus_size_t,
 110                                   u_int8_t *, size_t);
 111         void            (*bsrrs2)(bus_space_tag_t, BSH_T *, bus_size_t,
 112                                   u_int16_t *, size_t);
 113         void            (*bsrrs4)(bus_space_tag_t, BSH_T *, bus_size_t,
 114                                   u_int32_t *, size_t);
 115         void            (*bsw1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t);
 116         void            (*bsw2)(bus_space_tag_t, BSH_T *, bus_size_t,
 117                                 u_int16_t);
 118         void            (*bsw4)(bus_space_tag_t, BSH_T *, bus_size_t,
 119                                 u_int32_t);
 120         void            (*bsws1)(bus_space_tag_t, BSH_T *, bus_size_t,
 121                                  u_int8_t);
 122         void            (*bsws2)(bus_space_tag_t, BSH_T *, bus_size_t,
 123                                  u_int16_t);
 124         void            (*bsws4)(bus_space_tag_t, BSH_T *, bus_size_t,
 125                                  u_int32_t);
 126         void            (*bswm1)(bus_space_tag_t, BSH_T *, bus_size_t,
 127                                  const u_int8_t *, size_t);
 128         void            (*bswm2)(bus_space_tag_t, BSH_T *, bus_size_t,
 129                                  const u_int16_t *, size_t);
 130         void            (*bswm4)(bus_space_tag_t, BSH_T *, bus_size_t,
 131                                  const u_int32_t *, size_t);
 132         void            (*bswms1)(bus_space_tag_t, BSH_T *, bus_size_t,
 133                                   const u_int8_t *, size_t);
 134         void            (*bswms2)(bus_space_tag_t, BSH_T *, bus_size_t,
 135                                   const u_int16_t *, size_t);
 136         void            (*bswms4)(bus_space_tag_t, BSH_T *, bus_size_t,
 137                                   const u_int32_t *, size_t);
 138         void            (*bswr1)(bus_space_tag_t, BSH_T *, bus_size_t,
 139                                  const u_int8_t *, size_t);
 140         void            (*bswr2)(bus_space_tag_t, BSH_T *, bus_size_t,
 141                                  const u_int16_t *, size_t);
 142         void            (*bswr4)(bus_space_tag_t, BSH_T *, bus_size_t,
 143                                  const u_int32_t *, size_t);
 144         void            (*bswrs1)(bus_space_tag_t, BSH_T *, bus_size_t,
 145                                   const u_int8_t *, size_t);
 146         void            (*bswrs2)(bus_space_tag_t, BSH_T *, bus_size_t,
 147                                   const u_int16_t *, size_t);
 148         void            (*bswrs4)(bus_space_tag_t, BSH_T *, bus_size_t,
 149                                   const u_int32_t *, size_t);
 150         void            (*bssm1)(bus_space_tag_t, BSH_T *, bus_size_t,
 151                                  u_int8_t v, size_t);
 152         void            (*bssm2)(bus_space_tag_t, BSH_T *, bus_size_t,
 153                                  u_int16_t v, size_t);
 154         void            (*bssm4)(bus_space_tag_t, BSH_T *, bus_size_t,
 155                                  u_int32_t v, size_t);
 156         void            (*bssr1)(bus_space_tag_t, BSH_T *, bus_size_t,
 157                                  u_int8_t v, size_t);
 158         void            (*bssr2)(bus_space_tag_t, BSH_T *, bus_size_t,
 159                                  u_int16_t v, size_t);
 160         void            (*bssr4)(bus_space_tag_t, BSH_T *, bus_size_t,
 161                                  u_int32_t v, size_t);
 162 } bus_space_handle_t;
 163 #undef BSH_T
 164
 165 void    mac68k_bus_space_handle_swapped(bus_space_tag_t,
 166                 bus_space_handle_t *);
 167 void    mac68k_bus_space_handle_set_stride(bus_space_tag_t,
 168                 bus_space_handle_t *, int);
 169
 170 /*
 171  *      int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
 172  *          bus_size_t size, int flags, bus_space_handle_t *bshp);
 173  *
 174  * Map a region of bus space.
 175  */
 176
 177 #define BUS_SPACE_MAP_CACHEABLE         0x01
 178 #define BUS_SPACE_MAP_LINEAR            0x02
 179 #define BUS_SPACE_MAP_PREFETCHABLE      0x04
 180
 181 int     bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t,
 182             int, bus_space_handle_t *);
 183
 184 /*
 185  *      void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
 186  *          bus_size_t size);
 187  *
 188  * Unmap a region of bus space.
 189  */
 190
 191 void    bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
 192
 193 /*
 194  *      int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
 195  *          bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
 196  *
 197  * Get a new handle for a subregion of an already-mapped area of bus space.
 198  */
 199
 200 int     bus_space_subregion(bus_space_tag_t, bus_space_handle_t,
 201             bus_size_t, bus_size_t size, bus_space_handle_t *);
 202
 203 /*
 204  *      int bus_space_alloc(bus_space_tag_t t, bus_addr_t, rstart,
 205  *          bus_addr_t rend, bus_size_t size, bus_size_t align,
 206  *          bus_size_t boundary, int flags, bus_addr_t *addrp,
 207  *          bus_space_handle_t *bshp);
 208  *
 209  * Allocate a region of bus space.
 210  */
 211
 212 int     bus_space_alloc(bus_space_tag_t, bus_addr_t rstart,
 213             bus_addr_t rend, bus_size_t size, bus_size_t align,
 214             bus_size_t boundary, int cacheable, bus_addr_t *addrp,
 215             bus_space_handle_t *bshp);
 216
 217 /*
 218  *      int bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
 219  *          bus_size_t size);
 220  *
 221  * Free a region of bus space.
 222  */
 223
 224 void    bus_space_free(bus_space_tag_t, bus_space_handle_t bsh,
 225             bus_size_t size);
 226
 227 /*
 228  *      int mac68k_bus_space_probe(bus_space_tag_t t, bus_space_handle_t bsh,
 229  *          bus_size_t offset, int sz);
 230  *
 231  * Probe the bus at t/bsh/offset, using sz as the size of the load.
 232  *
 233  * This is a machine-dependent extension, and is not to be used by
 234  * machine-independent code.
 235  */
 236
 237 int     mac68k_bus_space_probe(bus_space_tag_t,
 238             bus_space_handle_t bsh, bus_size_t, int sz);
 239
 240 /*
 241  *      u_intN_t bus_space_read_N(bus_space_tag_t tag,
 242  *          bus_space_handle_t bsh, bus_size_t offset);
 243  *
 244  * Read a 1, 2, 4, or 8 byte quantity from bus space
 245  * described by tag/handle/offset.
 246  */
 247
 248 u_int8_t mac68k_bsr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 249 u_int8_t mac68k_bsr1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 250 u_int16_t mac68k_bsr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 251 u_int16_t mac68k_bsr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 252 u_int16_t mac68k_bsr2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 253 u_int16_t mac68k_bsrs2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 254 u_int32_t mac68k_bsr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 255 u_int32_t mac68k_bsr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 256 u_int32_t mac68k_bsr4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 257 u_int32_t mac68k_bsrs4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t);
 258
 259 #define bus_space_read_1(t,h,o) (h).bsr1((t), &(h), (o))
 260 #define bus_space_read_2(t,h,o) (h).bsr2((t), &(h), (o))
 261 #define bus_space_read_4(t,h,o) (h).bsr4((t), &(h), (o))
 262 #define bus_space_read_stream_1(t,h,o)  (h).bsrs1((t), &(h), (o))
 263 #define bus_space_read_stream_2(t,h,o)  (h).bsrs2((t), &(h), (o))
 264 #define bus_space_read_stream_4(t,h,o)  (h).bsrs4((t), &(h), (o))
 265
 266 #if 0   /* Cause a link error for bus_space_read_8 */
 267 #define bus_space_read_8(t, h, o)       !!! bus_space_read_8 unimplemented !!!
 268 #define bus_space_read_stream_8(t, h, o) \
 269                                 !!! bus_space_read_stream_8 unimplemented !!!
 270 #endif
 271
 272 /*
 273  *      void bus_space_read_multi_N(bus_space_tag_t tag,
 274  *          bus_space_handle_t bsh, bus_size_t offset, u_intN_t *addr,
 275  *          size_t count);
 276  *
 277  * Read `count' 1, 2, 4, or 8 byte quantities from bus space
 278  * described by tag/handle/offset and copy into buffer provided.
 279  */
 280
 281 void mac68k_bsrm1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 282         u_int8_t *, size_t);
 283 void mac68k_bsrm1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 284         u_int8_t *, size_t);
 285 void mac68k_bsrm2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 286         u_int16_t *, size_t);
 287 void mac68k_bsrm2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 288         u_int16_t *, size_t);
 289 void mac68k_bsrm2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 290         u_int16_t *, size_t);
 291 void mac68k_bsrms2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 292         u_int16_t *, size_t);
 293 void mac68k_bsrm4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 294         u_int32_t *, size_t);
 295 void mac68k_bsrms4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 296         u_int32_t *, size_t);
 297 void mac68k_bsrm4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 298         u_int32_t *, size_t);
 299 void mac68k_bsrm4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 300         u_int32_t *, size_t);
 301 void mac68k_bsrms4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 302         u_int32_t *, size_t);
 303
 304 #if defined(DIAGNOSTIC)
 305 #define bus_space_read_multi_1(t, h, o, a, c) do {                       \
 306         if ((c) == 0)                                                    \
 307                 panic("bus_space_read_multi_1 called with zero count."); \
 308         (h).bsrm1(t,&(h),o,a,c); } while (0)
 309 #define bus_space_read_multi_2(t, h, o, a, c) do {                       \
 310         if ((c) == 0)                                                    \
 311                 panic("bus_space_read_multi_2 called with zero count."); \
 312         (h).bsrm2(t,&(h),o,a,c); } while (0)
 313 #define bus_space_read_multi_4(t, h, o, a, c) do {                       \
 314         if ((c) == 0)                                                    \
 315                 panic("bus_space_read_multi_4 called with zero count."); \
 316         (h).bsrm4(t,&(h),o,a,c); } while (0)
 317 #define bus_space_read_multi_stream_1(t, h, o, a, c) do {                \
 318         if ((c) == 0)                                                    \
 319                 panic("bus_space_read_multi_stream_1 called with count=0."); \
 320         (h).bsrms1(t,&(h),o,a,c); } while (0)
 321 #define bus_space_read_multi_stream_2(t, h, o, a, c) do {                \
 322         if ((c) == 0)                                                    \
 323                 panic("bus_space_read_multi_stream_2 called with count=0."); \
 324         (h).bsrms2(t,&(h),o,a,c); } while (0)
 325 #define bus_space_read_multi_stream_4(t, h, o, a, c) do {                \
 326         if ((c) == 0)                                                    \
 327                 panic("bus_space_read_multi_stream_4 called with count=0."); \
 328         (h).bsrms4(t,&(h),o,a,c); } while (0)
 329 #else
 330 #define bus_space_read_multi_1(t, h, o, a, c) \
 331         do { if (c) (h).bsrm1(t, &(h), o, a, c); } while (0)
 332 #define bus_space_read_multi_2(t, h, o, a, c) \
 333         do { if (c) (h).bsrm2(t, &(h), o, a, c); } while (0)
 334 #define bus_space_read_multi_4(t, h, o, a, c) \
 335         do { if (c) (h).bsrm4(t, &(h), o, a, c); } while (0)
 336 #define bus_space_read_multi_stream_1(t, h, o, a, c) \
 337         do { if (c) (h).bsrms1(t, &(h), o, a, c); } while (0)
 338 #define bus_space_read_multi_stream_2(t, h, o, a, c) \
 339         do { if (c) (h).bsrms2(t, &(h), o, a, c); } while (0)
 340 #define bus_space_read_multi_stream_4(t, h, o, a, c) \
 341         do { if (c) (h).bsrms4(t, &(h), o, a, c); } while (0)
 342 #endif
 343
 344 #if 0   /* Cause a link error for bus_space_read_multi_8 */
 345 #define bus_space_read_multi_8  !!! bus_space_read_multi_8 unimplemented !!!
 346 #define bus_space_read_multi_stream_8   \
 347                         !!! bus_space_read_multi_stream_8 unimplemented !!!
 348 #endif
 349
 350 /*
 351  *      void bus_space_read_region_N(bus_space_tag_t tag,
 352  *          bus_space_handle_t bsh, bus_size_t offset,
 353  *          u_intN_t *addr, size_t count);
 354  *
 355  * Read `count' 1, 2, 4, or 8 byte quantities from bus space
 356  * described by tag/handle and starting at `offset' and copy into
 357  * buffer provided.
 358  */
 359
 360 void mac68k_bsrr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 361         u_int8_t *, size_t);
 362 void mac68k_bsrr1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 363         u_int8_t *, size_t);
 364 void mac68k_bsrr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 365         u_int16_t *, size_t);
 366 void mac68k_bsrr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 367         u_int16_t *, size_t);
 368 void mac68k_bsrr2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 369         u_int16_t *, size_t);
 370 void mac68k_bsrrs2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 371         u_int16_t *, size_t);
 372 void mac68k_bsrr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 373         u_int32_t *, size_t);
 374 void mac68k_bsrr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 375         u_int32_t *, size_t);
 376 void mac68k_bsrr4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 377         u_int32_t *, size_t);
 378 void mac68k_bsrrs4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 379         u_int32_t *, size_t);
 380
 381 #if defined(DIAGNOSTIC)
 382 #define bus_space_read_region_1(t, h, o, a, c) do {                       \
 383         if ((c) == 0)                                                     \
 384                 panic("bus_space_read_region_1 called with zero count."); \
 385         (h).bsrr1(t,&(h),o,a,c); } while (0)
 386 #define bus_space_read_region_2(t, h, o, a, c) do {                       \
 387         if ((c) == 0)                                                     \
 388                 panic("bus_space_read_region_2 called with zero count."); \
 389         (h).bsrr2(t,&(h),o,a,c); } while (0)
 390 #define bus_space_read_region_4(t, h, o, a, c) do {                       \
 391         if ((c) == 0)                                                     \
 392                 panic("bus_space_read_region_4 called with zero count."); \
 393         (h).bsrr4(t,&(h),o,a,c); } while (0)
 394 #define bus_space_read_region_stream_1(t, h, o, a, c) do {                \
 395         if ((c) == 0)                                                     \
 396                 panic("bus_space_read_region_stream_1 called with count=0."); \
 397         (h).bsrrs1(t,&(h),o,a,c); } while (0)
 398 #define bus_space_read_region_stream_2(t, h, o, a, c) do {                \
 399         if ((c) == 0)                                                     \
 400                  panic("bus_space_read_region_stream_2 called with count=0."); \
 401         (h).bsrrs2(t,&(h),o,a,c); } while (0)
 402 #define bus_space_read_region_stream_4(t, h, o, a, c) do {                \
 403         if ((c) == 0)                                                     \
 404                 panic("bus_space_read_region_stream_4 called with count=0."); \
 405         (h).bsrrs4(t,&(h),o,a,c); } while (0)
 406 #else
 407 #define bus_space_read_region_1(t, h, o, a, c) \
 408         do { if (c) (h).bsrr1(t,&(h),o,a,c); } while (0)
 409 #define bus_space_read_region_2(t, h, o, a, c) \
 410         do { if (c) (h).bsrr2(t,&(h),o,a,c); } while (0)
 411 #define bus_space_read_region_4(t, h, o, a, c) \
 412         do { if (c) (h).bsrr4(t,&(h),o,a,c); } while (0)
 413 #define bus_space_read_region_stream_1(t, h, o, a, c) \
 414         do { if (c) (h).bsrrs1(t,&(h),o,a,c); } while (0)
 415 #define bus_space_read_region_stream_2(t, h, o, a, c) \
 416         do { if (c) (h).bsrrs2(t,&(h),o,a,c); } while (0)
 417 #define bus_space_read_region_stream_4(t, h, o, a, c) \
 418         do { if (c) (h).bsrrs4(t,&(h),o,a,c); } while (0)
 419 #endif
 420
 421 #if 0   /* Cause a link error for bus_space_read_region_8 */
 422 #define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!!
 423 #define bus_space_read_region_stream_8  \
 424                         !!! bus_space_read_region_stream_8 unimplemented !!!
 425 #endif
 426
 427 /*
 428  *      void bus_space_write_N(bus_space_tag_t tag,
 429  *          bus_space_handle_t bsh, bus_size_t offset, u_intN_t value);
 430  *
 431  * Write the 1, 2, 4, or 8 byte value `value' to bus space
 432  * described by tag/handle/offset.
 433  */
 434
 435 void mac68k_bsw1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int8_t);
 436 void mac68k_bsw1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 437         u_int8_t);
 438 void mac68k_bsw2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t);
 439 void mac68k_bsw2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 440         u_int16_t);
 441 void mac68k_bsw2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 442         u_int16_t);
 443 void mac68k_bsws2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 444         u_int16_t);
 445 void mac68k_bsw4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t);
 446 void mac68k_bsw4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 447         u_int32_t);
 448 void mac68k_bsw4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 449         u_int32_t);
 450 void mac68k_bsws4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 451         u_int32_t);
 452
 453 #define bus_space_write_1(t, h, o, v) (h).bsw1(t, &(h), o, v)
 454 #define bus_space_write_2(t, h, o, v) (h).bsw2(t, &(h), o, v)
 455 #define bus_space_write_4(t, h, o, v) (h).bsw4(t, &(h), o, v)
 456 #define bus_space_write_stream_1(t, h, o, v) (h).bsws1(t, &(h), o, v)
 457 #define bus_space_write_stream_2(t, h, o, v) (h).bsws2(t, &(h), o, v)
 458 #define bus_space_write_stream_4(t, h, o, v) (h).bsws4(t, &(h), o, v)
 459
 460 #if 0   /* Cause a link error for bus_space_write_8 */
 461 #define bus_space_write_8       !!! bus_space_write_8 not implemented !!!
 462 #define bus_space_write_stream_8 \
 463                         !!! bus_space_write_stream_8 not implemented !!!
 464 #endif
 465
 466 /*
 467  *      void bus_space_write_multi_N(bus_space_tag_t tag,
 468  *          bus_space_handle_t bsh, bus_size_t offset, const u_intN_t *addr,
 469  *          size_t count);
 470  *
 471  * Write `count' 1, 2, 4, or 8 byte quantities from the buffer
 472  * provided to bus space described by tag/handle/offset.
 473  */
 474
 475 void mac68k_bswm1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 476         const u_int8_t *, size_t);
 477 void mac68k_bswm1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 478         const u_int8_t *, size_t);
 479 void mac68k_bswm2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 480         const u_int16_t *, size_t);
 481 void mac68k_bswm2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 482         const u_int16_t *, size_t);
 483 void mac68k_bswm2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 484         const u_int16_t *, size_t);
 485 void mac68k_bswms2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 486         const u_int16_t *, size_t);
 487 void mac68k_bswm4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 488         const u_int32_t *, size_t);
 489 void mac68k_bswm4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 490         const u_int32_t *, size_t);
 491 void mac68k_bswm4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 492         const u_int32_t *, size_t);
 493 void mac68k_bswms4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 494         const u_int32_t *, size_t);
 495
 496 #if defined(DIAGNOSTIC)
 497 #define bus_space_write_multi_1(t, h, o, a, c) do {                       \
 498         if ((c) == 0)                                                     \
 499                 panic("bus_space_write_multi_1 called with zero count."); \
 500         (h).bswm1(t,&(h),o,a,c); } while (0)
 501 #define bus_space_write_multi_2(t, h, o, a, c) do {                       \
 502         if ((c) == 0)                                                     \
 503                 panic("bus_space_write_multi_2 called with zero count."); \
 504         (h).bswm2(t,&(h),o,a,c); } while (0)
 505 #define bus_space_write_multi_4(t, h, o, a, c) do {                       \
 506         if ((c) == 0)                                                     \
 507                 panic("bus_space_write_multi_4 called with zero count."); \
 508         (h).bswm4(t,&(h),o,a,c); } while (0)
 509 #define bus_space_write_multi_stream_1(t, h, o, a, c) do {                \
 510         if ((c) == 0)                                                     \
 511                 panic("bus_space_write_multi_stream_1 called with count=0."); \
 512         (h).bswms1(t,&(h),o,a,c); } while (0)
 513 #define bus_space_write_multi_stream_2(t, h, o, a, c) do {                \
 514         if ((c) == 0)                                                     \
 515                 panic("bus_space_write_multi_stream_2 called with count=0."); \
 516         (h).bswms2(t,&(h),o,a,c); } while (0)
 517 #define bus_space_write_multi_stream_4(t, h, o, a, c) do {                \
 518         if ((c) == 0)                                                     \
 519                 panic("bus_space_write_multi_stream_4 called with count=0."); \
 520         (h).bswms4(t,&(h),o,a,c); } while (0)
 521 #else
 522 #define bus_space_write_multi_1(t, h, o, a, c) \
 523         do { if (c) (h).bswm1(t, &(h), o, a, c); } while (0)
 524 #define bus_space_write_multi_2(t, h, o, a, c) \
 525         do { if (c) (h).bswm2(t, &(h), o, a, c); } while (0)
 526 #define bus_space_write_multi_4(t, h, o, a, c) \
 527         do { if (c) (h).bswm4(t, &(h), o, a, c); } while (0)
 528 #define bus_space_write_multi_stream_1(t, h, o, a, c) \
 529         do { if (c) (h).bswms1(t, &(h), o, a, c); } while (0)
 530 #define bus_space_write_multi_stream_2(t, h, o, a, c) \
 531         do { if (c) (h).bswms2(t, &(h), o, a, c); } while (0)
 532 #define bus_space_write_multi_stream_4(t, h, o, a, c) \
 533         do { if (c) (h).bswms4(t, &(h), o, a, c); } while (0)
 534 #endif
 535
 536 #if 0   /* Cause a link error for bus_space_write_8 */
 537 #define bus_space_write_multi_8(t, h, o, a, c)                          \
 538                         !!! bus_space_write_multi_8 unimplimented !!!
 539 #define bus_space_write_multi_stream_8(t, h, o, a, c)                   \
 540                         !!! bus_space_write_multi_stream_8 unimplimented !!!
 541 #endif
 542
 543 /*
 544  *      void bus_space_write_region_N(bus_space_tag_t tag,
 545  *          bus_space_handle_t bsh, bus_size_t offset, const u_intN_t *addr,
 546  *          size_t count);
 547  *
 548  * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
 549  * to bus space described by tag/handle starting at `offset'.
 550  */
 551
 552 void mac68k_bswr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 553         const u_int8_t *, size_t);
 554 void mac68k_bswr1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 555         const u_int8_t *, size_t);
 556 void mac68k_bswr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 557         const u_int16_t *, size_t);
 558 void mac68k_bswr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 559         const u_int16_t *, size_t);
 560 void mac68k_bswr2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 561         const u_int16_t *, size_t);
 562 void mac68k_bswrs2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 563         const u_int16_t *, size_t);
 564 void mac68k_bswr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 565         const u_int32_t *, size_t);
 566 void mac68k_bswr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 567         const u_int32_t *, size_t);
 568 void mac68k_bswr4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 569         const u_int32_t *, size_t);
 570 void mac68k_bswrs4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 571         const u_int32_t *, size_t);
 572
 573 #if defined(DIAGNOSTIC)
 574 #define bus_space_write_region_1(t, h, o, a, c) do {                       \
 575         if ((c) == 0)                                                      \
 576                 panic("bus_space_write_region_1 called with zero count."); \
 577         (h).bswr1(t,&(h),o,a,c); } while (0)
 578 #define bus_space_write_region_2(t, h, o, a, c) do {                       \
 579         if ((c) == 0)                                                      \
 580                 panic("bus_space_write_region_2 called with zero count."); \
 581         (h).bswr2(t,&(h),o,a,c); } while (0)
 582 #define bus_space_write_region_4(t, h, o, a, c) do {                       \
 583         if ((c) == 0)                                                      \
 584                 panic("bus_space_write_region_4 called with zero count."); \
 585         (h).bswr4(t,&(h),o,a,c); } while (0)
 586 #define bus_space_write_region_stream_1(t, h, o, a, c) do {                \
 587         if ((c) == 0)                                                      \
 588                 panic("bus_space_write_region_stream_1 called with count=0."); \
 589         (h).bswrs1(t,&(h),o,a,c); } while (0)
 590 #define bus_space_write_region_stream_2(t, h, o, a, c) do {                \
 591         if ((c) == 0)                                                      \
 592                 panic("bus_space_write_region_stream_2 called with count=0."); \
 593         (h).bswrs2(t,&(h),o,a,c); } while (0)
 594 #define bus_space_write_region_stream_4(t, h, o, a, c) do {                \
 595         if ((c) == 0)                                                      \
 596                 panic("bus_space_write_region_stream_4 called with count=0."); \
 597         (h).bswrs4(t,&(h),o,a,c); } while (0)
 598 #else
 599 #define bus_space_write_region_1(t, h, o, a, c) \
 600         do { if (c) (h).bswr1(t,&(h),o,a,c); } while (0)
 601 #define bus_space_write_region_2(t, h, o, a, c) \
 602         do { if (c) (h).bswr2(t,&(h),o,a,c); } while (0)
 603 #define bus_space_write_region_4(t, h, o, a, c) \
 604         do { if (c) (h).bswr4(t,&(h),o,a,c); } while (0)
 605 #define bus_space_write_region_stream_1(t, h, o, a, c) \
 606         do { if (c) (h).bswrs1(t,&(h),o,a,c); } while (0)
 607 #define bus_space_write_region_stream_2(t, h, o, a, c) \
 608         do { if (c) (h).bswrs2(t,&(h),o,a,c); } while (0)
 609 #define bus_space_write_region_stream_4(t, h, o, a, c) \
 610         do { if (c) (h).bswrs4(t,&(h),o,a,c); } while (0)
 611 #endif
 612
 613 #if 0   /* Cause a link error for bus_space_write_region_8 */
 614 #define bus_space_write_region_8                                        \
 615                         !!! bus_space_write_region_8 unimplemented !!!
 616 #define bus_space_write_region_stream_8                         \
 617                         !!! bus_space_write_region_stream_8 unimplemented !!!
 618 #endif
 619
 620 /*
 621  *      void bus_space_set_multi_N(bus_space_tag_t tag,
 622  *          bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
 623  *          size_t count);
 624  *
 625  * Write the 1, 2, 4, or 8 byte value `val' to bus space described
 626  * by tag/handle/offset `count' times.
 627  */
 628
 629 void mac68k_bssm1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 630         u_int8_t, size_t);
 631 void mac68k_bssm1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 632         u_int8_t, size_t);
 633 void mac68k_bssm2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 634         u_int16_t, size_t);
 635 void mac68k_bssm2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 636         u_int16_t, size_t);
 637 void mac68k_bssm2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 638         u_int16_t, size_t);
 639 void mac68k_bssm4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 640         u_int32_t, size_t);
 641 void mac68k_bssm4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 642         u_int32_t, size_t);
 643 void mac68k_bssm4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 644         u_int32_t, size_t);
 645
 646 #if defined(DIAGNOSTIC)
 647 #define bus_space_set_multi_1(t, h, o, val, c) do {                     \
 648         if ((c) == 0)                                                   \
 649                  panic("bus_space_set_multi_1 called with zero count."); \
 650         (h).bssm1(t,&(h),o,val,c); } while (0)
 651 #define bus_space_set_multi_2(t, h, o, val, c) do {                     \
 652         if ((c) == 0)                                                   \
 653                 panic("bus_space_set_multi_2 called with zero count."); \
 654         (h).bssm2(t,&(h),o,val,c); } while (0)
 655 #define bus_space_set_multi_4(t, h, o, val, c) do {                     \
 656         if ((c) == 0)                                                   \
 657                 panic("bus_space_set_multi_4 called with zero count."); \
 658         (h).bssm4(t,&(h),o,val,c); } while (0)
 659 #else
 660 #define bus_space_set_multi_1(t, h, o, val, c) \
 661         do { if (c) (h).bssm1(t,&(h),o,val,c); } while (0)
 662 #define bus_space_set_multi_2(t, h, o, val, c) \
 663         do { if (c) (h).bssm2(t,&(h),o,val,c); } while (0)
 664 #define bus_space_set_multi_4(t, h, o, val, c) \
 665         do { if (c) (h).bssm4(t,&(h),o,val,c); } while (0)
 666 #endif
 667
 668 #if 0   /* Cause a link error for bus_space_set_multi_8 */
 669 #define bus_space_set_multi_8                                           \
 670                         !!! bus_space_set_multi_8 unimplemented !!!
 671 #endif
 672
 673 /*
 674  *      void bus_space_set_region_N(bus_space_tag_t tag,
 675  *          bus_space_handle_t bsh, bus_size_t, u_intN_t val,
 676  *          size_t count);
 677  *
 678  * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
 679  * by tag/handle starting at `offset'.
 680  */
 681
 682 void mac68k_bssr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 683         u_int8_t, size_t);
 684 void mac68k_bssr1_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 685         u_int8_t, size_t);
 686 void mac68k_bssr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 687         u_int16_t, size_t);
 688 void mac68k_bssr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 689         u_int16_t, size_t);
 690 void mac68k_bssr2_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 691         u_int16_t, size_t);
 692 void mac68k_bssr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 693         u_int32_t, size_t);
 694 void mac68k_bssr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 695         u_int32_t, size_t);
 696 void mac68k_bssr4_gen(bus_space_tag_t, bus_space_handle_t *, bus_size_t,
 697         u_int32_t, size_t);
 698
 699 #if defined(DIAGNOSTIC)
 700 #define bus_space_set_region_1(t, h, o, val, c) do {                     \
 701         if ((c) == 0)                                                    \
 702                 panic("bus_space_set_region_1 called with zero count."); \
 703         (h).bssr1(t,&(h),o,val,c); } while (0)
 704 #define bus_space_set_region_2(t, h, o, val, c) do {                     \
 705         if ((c) == 0)                                                    \
 706                 panic("bus_space_set_region_2 called with zero count."); \
 707         (h).bssr2(t,&(h),o,val,c); } while (0)
 708 #define bus_space_set_region_4(t, h, o, val, c) do {                     \
 709         if ((c) == 0)                                                    \
 710                 panic("bus_space_set_region_4 called with zero count."); \
 711         (h).bssr4(t,&(h),o,val,c); } while (0)
 712 #else
 713 #define bus_space_set_region_1(t, h, o, val, c) \
 714         do { if (c) (h).bssr1(t,&(h),o,val,c); } while (0)
 715 #define bus_space_set_region_2(t, h, o, val, c) \
 716         do { if (c) (h).bssr2(t,&(h),o,val,c); } while (0)
 717 #define bus_space_set_region_4(t, h, o, val, c) \
 718         do { if (c) (h).bssr4(t,&(h),o,val,c); } while (0)
 719 #endif
 720
 721 #if 0   /* Cause a link error for bus_space_set_region_8 */
 722 #define bus_space_set_region_8                                          \
 723                         !!! bus_space_set_region_8 unimplemented !!!
 724 #endif
 725
 726 /*
 727  *      void bus_space_copy_N(bus_space_tag_t tag,
 728  *          bus_space_handle_t bsh1, bus_size_t off1,
 729  *          bus_space_handle_t bsh2, bus_size_t off2, size_t count);
 730  *
 731  * Copy `count' 1, 2, 4, or 8 byte values from bus space starting
 732  * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
 733  */
 734
 735 #define __MAC68K_copy_region_N(BYTES)                                   \
 736 static __inline void __CONCAT(bus_space_copy_region_,BYTES)             \
 737         (bus_space_tag_t,                                               \
 738             bus_space_handle_t, bus_size_t,                             \
 739             bus_space_handle_t, bus_size_t,                             \
 740             bus_size_t);                                                \
 741                                                                         \
 742 static __inline void                                                    \
 743 __CONCAT(bus_space_copy_region_,BYTES)(                                 \
 744         bus_space_tag_t t,                                              \
 745         bus_space_handle_t h1,                                          \
 746         bus_size_t o1,                                                  \
 747         bus_space_handle_t h2,                                          \
 748         bus_size_t o2,                                                  \
 749         bus_size_t c)                                                   \
 750 {                                                                       \
 751         bus_size_t o;                                                   \
 752                                                                         \
 753         if ((h1.base + o1) >= (h2.base + o2)) {                         \
 754                 /* src after dest: copy forward */                      \
 755                 for (o = 0; c != 0; c--, o += BYTES)                    \
 756                         __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
 757                             __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
 758         } else {                                                        \
 759                 /* dest after src: copy backwards */                    \
 760                 for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES)      \
 761                         __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \
 762                             __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \
 763         }                                                               \
 764 }
 765 __MAC68K_copy_region_N(1)
 766 __MAC68K_copy_region_N(2)
 767 __MAC68K_copy_region_N(4)
 768 #if 0   /* Cause a link error for bus_space_copy_8 */
 769 #define bus_space_copy_8                                                \
 770                         !!! bus_space_copy_8 unimplemented !!!
 771 #endif
 772
 773 #undef __MAC68K_copy_region_N
 774
 775 /*
 776  * Bus read/write barrier methods.
 777  *
 778  *      void bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t bsh,
 779  *          bus_size_t offset, bus_size_t len, int flags);
 780  *
 781  * Note: the 680x0 does not currently require barriers, but we must
 782  * provide the flags to MI code.
 783  */
 784 #define bus_space_barrier(t, h, o, l, f)        \
 785         ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
 786 #define BUS_SPACE_BARRIER_READ  0x01            /* force read barrier */
 787 #define BUS_SPACE_BARRIER_WRITE 0x02            /* force write barrier */
 788
 789 #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
 790
 791 #include <m68k/bus_dma.h>
 792
 793 #endif /* _MAC68K_BUS_H_ */