Annotation of sys/arch/landisk/include/bus.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bus.h,v 1.4 2007/04/12 12:00:02 miod Exp $ */
! 2: /* $NetBSD: bus.h,v 1.1 2006/09/01 21:26:18 uwe Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1996, 1997 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 _LANDISK_BUS_H_
! 73: #define _LANDISK_BUS_H_
! 74:
! 75: #include <sys/types.h>
! 76:
! 77: typedef u_long bus_addr_t;
! 78: typedef u_long bus_size_t;
! 79:
! 80: typedef struct _bus_space *bus_space_tag_t;
! 81: typedef u_long bus_space_handle_t;
! 82:
! 83: struct _bus_space {
! 84: /* cookie */
! 85: void *bs_cookie;
! 86:
! 87: /* mapping/unmapping */
! 88: int (*bs_map)(void *, bus_addr_t, bus_size_t,
! 89: int, bus_space_handle_t *);
! 90: void (*bs_unmap)(void *, bus_space_handle_t,
! 91: bus_size_t);
! 92: int (*bs_subregion)(void *, bus_space_handle_t,
! 93: bus_size_t, bus_size_t, bus_space_handle_t *);
! 94:
! 95: /* allocation/deallocation */
! 96: int (*bs_alloc)(void *, bus_addr_t, bus_addr_t,
! 97: bus_size_t, bus_size_t, bus_size_t, int,
! 98: bus_addr_t *, bus_space_handle_t *);
! 99: void (*bs_free)(void *, bus_space_handle_t,
! 100: bus_size_t);
! 101:
! 102: /* get kernel virtual address */
! 103: void * (*bs_vaddr)(void *, bus_space_handle_t);
! 104:
! 105: /* read (single) */
! 106: uint8_t (*bs_r_1)(void *, bus_space_handle_t,
! 107: bus_size_t);
! 108: uint16_t (*bs_r_2)(void *, bus_space_handle_t,
! 109: bus_size_t);
! 110: uint32_t (*bs_r_4)(void *, bus_space_handle_t,
! 111: bus_size_t);
! 112: uint64_t (*bs_r_8)(void *, bus_space_handle_t,
! 113: bus_size_t);
! 114:
! 115: /* read multiple */
! 116: void (*bs_rm_1)(void *, bus_space_handle_t,
! 117: bus_size_t, uint8_t *, bus_size_t);
! 118: void (*bs_rm_2)(void *, bus_space_handle_t,
! 119: bus_size_t, uint16_t *, bus_size_t);
! 120: void (*bs_rm_4)(void *, bus_space_handle_t,
! 121: bus_size_t, uint32_t *, bus_size_t);
! 122: void (*bs_rm_8)(void *, bus_space_handle_t,
! 123: bus_size_t, uint64_t *, bus_size_t);
! 124:
! 125: void (*bs_rrm_2)(void *, bus_space_handle_t,
! 126: bus_size_t, uint8_t *, bus_size_t);
! 127: void (*bs_rrm_4)(void *, bus_space_handle_t,
! 128: bus_size_t, uint8_t *, bus_size_t);
! 129: void (*bs_rrm_8)(void *, bus_space_handle_t,
! 130: bus_size_t, uint8_t *, bus_size_t);
! 131:
! 132: /* read region */
! 133: void (*bs_rr_1)(void *, bus_space_handle_t,
! 134: bus_size_t, uint8_t *, bus_size_t);
! 135: void (*bs_rr_2)(void *, bus_space_handle_t,
! 136: bus_size_t, uint16_t *, bus_size_t);
! 137: void (*bs_rr_4)(void *, bus_space_handle_t,
! 138: bus_size_t, uint32_t *, bus_size_t);
! 139: void (*bs_rr_8)(void *, bus_space_handle_t,
! 140: bus_size_t, uint64_t *, bus_size_t);
! 141:
! 142: void (*bs_rrr_2)(void *, bus_space_handle_t,
! 143: bus_size_t, uint8_t *, bus_size_t);
! 144: void (*bs_rrr_4)(void *, bus_space_handle_t,
! 145: bus_size_t, uint8_t *, bus_size_t);
! 146: void (*bs_rrr_8)(void *, bus_space_handle_t,
! 147: bus_size_t, uint8_t *, bus_size_t);
! 148:
! 149: /* write (single) */
! 150: void (*bs_w_1)(void *, bus_space_handle_t,
! 151: bus_size_t, uint8_t);
! 152: void (*bs_w_2)(void *, bus_space_handle_t,
! 153: bus_size_t, uint16_t);
! 154: void (*bs_w_4)(void *, bus_space_handle_t,
! 155: bus_size_t, uint32_t);
! 156: void (*bs_w_8)(void *, bus_space_handle_t,
! 157: bus_size_t, uint64_t);
! 158:
! 159: /* write multiple */
! 160: void (*bs_wm_1)(void *, bus_space_handle_t,
! 161: bus_size_t, const uint8_t *, bus_size_t);
! 162: void (*bs_wm_2)(void *, bus_space_handle_t,
! 163: bus_size_t, const uint16_t *, bus_size_t);
! 164: void (*bs_wm_4)(void *, bus_space_handle_t,
! 165: bus_size_t, const uint32_t *, bus_size_t);
! 166: void (*bs_wm_8)(void *, bus_space_handle_t,
! 167: bus_size_t, const uint64_t *, bus_size_t);
! 168:
! 169: void (*bs_wrm_2)(void *, bus_space_handle_t,
! 170: bus_size_t, const uint8_t *, bus_size_t);
! 171: void (*bs_wrm_4)(void *, bus_space_handle_t,
! 172: bus_size_t, const uint8_t *, bus_size_t);
! 173: void (*bs_wrm_8)(void *, bus_space_handle_t,
! 174: bus_size_t, const uint8_t *, bus_size_t);
! 175:
! 176: /* write region */
! 177: void (*bs_wr_1)(void *, bus_space_handle_t,
! 178: bus_size_t, const uint8_t *, bus_size_t);
! 179: void (*bs_wr_2)(void *, bus_space_handle_t,
! 180: bus_size_t, const uint16_t *, bus_size_t);
! 181: void (*bs_wr_4)(void *, bus_space_handle_t,
! 182: bus_size_t, const uint32_t *, bus_size_t);
! 183: void (*bs_wr_8)(void *, bus_space_handle_t,
! 184: bus_size_t, const uint64_t *, bus_size_t);
! 185:
! 186: void (*bs_wrr_2)(void *, bus_space_handle_t,
! 187: bus_size_t, const uint8_t *, bus_size_t);
! 188: void (*bs_wrr_4)(void *, bus_space_handle_t,
! 189: bus_size_t, const uint8_t *, bus_size_t);
! 190: void (*bs_wrr_8)(void *, bus_space_handle_t,
! 191: bus_size_t, const uint8_t *, bus_size_t);
! 192:
! 193: /* set multiple */
! 194: void (*bs_sm_1)(void *, bus_space_handle_t,
! 195: bus_size_t, uint8_t, bus_size_t);
! 196: void (*bs_sm_2)(void *, bus_space_handle_t,
! 197: bus_size_t, uint16_t, bus_size_t);
! 198: void (*bs_sm_4)(void *, bus_space_handle_t,
! 199: bus_size_t, uint32_t, bus_size_t);
! 200: void (*bs_sm_8)(void *, bus_space_handle_t,
! 201: bus_size_t, uint64_t, bus_size_t);
! 202:
! 203: /* set region */
! 204: void (*bs_sr_1)(void *, bus_space_handle_t,
! 205: bus_size_t, uint8_t, bus_size_t);
! 206: void (*bs_sr_2)(void *, bus_space_handle_t,
! 207: bus_size_t, uint16_t, bus_size_t);
! 208: void (*bs_sr_4)(void *, bus_space_handle_t,
! 209: bus_size_t, uint32_t, bus_size_t);
! 210: void (*bs_sr_8)(void *, bus_space_handle_t,
! 211: bus_size_t, uint64_t, bus_size_t);
! 212:
! 213: /* copy */
! 214: void (*bs_c_1)(void *, bus_space_handle_t, bus_size_t,
! 215: bus_space_handle_t, bus_size_t, bus_size_t);
! 216: void (*bs_c_2)(void *, bus_space_handle_t, bus_size_t,
! 217: bus_space_handle_t, bus_size_t, bus_size_t);
! 218: void (*bs_c_4)(void *, bus_space_handle_t, bus_size_t,
! 219: bus_space_handle_t, bus_size_t, bus_size_t);
! 220: void (*bs_c_8)(void *, bus_space_handle_t, bus_size_t,
! 221: bus_space_handle_t, bus_size_t, bus_size_t);
! 222: };
! 223:
! 224: #ifdef _KERNEL
! 225: /*
! 226: * Utility macros; INTERNAL USE ONLY.
! 227: */
! 228: #define __bs_c(a,b) __CONCAT(a,b)
! 229: #define __bs_opname(op,size) __bs_c(__bs_c(__bs_c(bs_,op),_),size)
! 230:
! 231: #define __bs_rs(sz, tn, t, h, o) \
! 232: (*(t)->__bs_opname(r,sz))((t)->bs_cookie, h, o)
! 233:
! 234: #define __bs_ws(sz, tn, t, h, o, v) \
! 235: (*(t)->__bs_opname(w,sz))((t)->bs_cookie, h, o, v)
! 236:
! 237: #define __bs_nonsingle(type, sz, tn, t, h, o, a, c) \
! 238: (*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, a, c)
! 239:
! 240: #define __bs_set(type, sz, tn, t, h, o, v, c) \
! 241: (*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, v, c)
! 242:
! 243: #define __bs_copy(sz, tn, t, h1, o1, h2, o2, cnt) \
! 244: (*(t)->__bs_opname(c,sz))((t)->bs_cookie, h1, o1, h2, o2, cnt)
! 245:
! 246:
! 247: /*
! 248: * Mapping and unmapping operations.
! 249: */
! 250: #define bus_space_map(t, a, s, f, hp) \
! 251: (*(t)->bs_map)((t)->bs_cookie, (a), (s), (f), (hp))
! 252: #define bus_space_unmap(t, h, s) \
! 253: (*(t)->bs_unmap)((t)->bs_cookie, (h), (s))
! 254: #define bus_space_subregion(t, h, o, s, hp) \
! 255: (*(t)->bs_subregion)((t)->bs_cookie, (h), (o), (s), (hp))
! 256:
! 257: #endif /* _KERNEL */
! 258:
! 259: #define BUS_SPACE_MAP_CACHEABLE 0x01
! 260: #define BUS_SPACE_MAP_LINEAR 0x02
! 261: #define BUS_SPACE_MAP_PREFETCHABLE 0x04
! 262:
! 263: #ifdef _KERNEL
! 264: /*
! 265: * Allocation and deallocation operations.
! 266: */
! 267: #define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \
! 268: (*(t)->bs_alloc)((t)->bs_cookie, (rs), (re), (s), (a), (b), \
! 269: (f), (ap), (hp))
! 270: #define bus_space_free(t, h, s) \
! 271: (*(t)->bs_free)((t)->bs_cookie, (h), (s))
! 272:
! 273: /*
! 274: * Get kernel virtual address for ranges mapped BUS_SPACE_MAP_LINEAR.
! 275: */
! 276: #define bus_space_vaddr(t, h) \
! 277: (*(t)->bs_vaddr)((t)->bs_cookie, (h))
! 278:
! 279: /*
! 280: * Bus barrier operations. The SH3 does not currently require
! 281: * barriers, but we must provide the flags to MI code.
! 282: */
! 283: #define bus_space_barrier(t, h, o, l, f) \
! 284: ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
! 285:
! 286: #define BUS_SPACE_BARRIER_READ 0x01
! 287: #define BUS_SPACE_BARRIER_WRITE 0x02
! 288:
! 289:
! 290: /*
! 291: * Bus read (single) operations.
! 292: */
! 293: #define bus_space_read_1(t, h, o) __bs_rs(1,uint8_t,(t),(h),(o))
! 294: #define bus_space_read_2(t, h, o) __bs_rs(2,uint16_t,(t),(h),(o))
! 295: #define bus_space_read_4(t, h, o) __bs_rs(4,uint32_t,(t),(h),(o))
! 296: #define bus_space_read_8(t, h, o) __bs_rs(8,uint64_t,(t),(h),(o))
! 297:
! 298:
! 299: /*
! 300: * Bus read multiple operations.
! 301: */
! 302: #define bus_space_read_multi_1(t, h, o, a, c) \
! 303: __bs_nonsingle(rm,1,uint8_t,(t),(h),(o),(a),(c))
! 304: #define bus_space_read_multi_2(t, h, o, a, c) \
! 305: __bs_nonsingle(rm,2,uint16_t,(t),(h),(o),(a),(c))
! 306: #define bus_space_read_multi_4(t, h, o, a, c) \
! 307: __bs_nonsingle(rm,4,uint32_t,(t),(h),(o),(a),(c))
! 308: #define bus_space_read_multi_8(t, h, o, a, c) \
! 309: __bs_nonsingle(rm,8,uint64_t,(t),(h),(o),(a),(c))
! 310:
! 311: #define bus_space_read_raw_multi_2(t, h, o, a, c) \
! 312: __bs_nonsingle(rrm,2,uint16_t,(t),(h),(o),(a),(c))
! 313: #define bus_space_read_raw_multi_4(t, h, o, a, c) \
! 314: __bs_nonsingle(rrm,4,uint32_t,(t),(h),(o),(a),(c))
! 315: #define bus_space_read_raw_multi_8(t, h, o, a, c) \
! 316: __bs_nonsingle(rrm,8,uint64_t,(t),(h),(o),(a),(c))
! 317:
! 318:
! 319: /*
! 320: * Bus read region operations.
! 321: */
! 322: #define bus_space_read_region_1(t, h, o, a, c) \
! 323: __bs_nonsingle(rr,1,uint8_t,(t),(h),(o),(a),(c))
! 324: #define bus_space_read_region_2(t, h, o, a, c) \
! 325: __bs_nonsingle(rr,2,uint16_t,(t),(h),(o),(a),(c))
! 326: #define bus_space_read_region_4(t, h, o, a, c) \
! 327: __bs_nonsingle(rr,4,uint32_t,(t),(h),(o),(a),(c))
! 328: #define bus_space_read_region_8(t, h, o, a, c) \
! 329: __bs_nonsingle(rr,8,uint64_t,(t),(h),(o),(a),(c))
! 330:
! 331: #define bus_space_read_raw_region_2(t, h, o, a, c) \
! 332: __bs_nonsingle(rrr,2,uint16_t,(t),(h),(o),(a),(c))
! 333: #define bus_space_read_raw_region_4(t, h, o, a, c) \
! 334: __bs_nonsingle(rrr,4,uint32_t,(t),(h),(o),(a),(c))
! 335: #define bus_space_read_raw_region_8(t, h, o, a, c) \
! 336: __bs_nonsingle(rrr,8,uint64_t,(t),(h),(o),(a),(c))
! 337:
! 338:
! 339: /*
! 340: * Bus write (single) operations.
! 341: */
! 342: #define bus_space_write_1(t, h, o, v) __bs_ws(1,uint8_t,(t),(h),(o),(v))
! 343: #define bus_space_write_2(t, h, o, v) __bs_ws(2,uint16_t,(t),(h),(o),(v))
! 344: #define bus_space_write_4(t, h, o, v) __bs_ws(4,uint32_t,(t),(h),(o),(v))
! 345: #define bus_space_write_8(t, h, o, v) __bs_ws(8,uint64_t,(t),(h),(o),(v))
! 346:
! 347:
! 348: /*
! 349: * Bus write multiple operations.
! 350: */
! 351: #define bus_space_write_multi_1(t, h, o, a, c) \
! 352: __bs_nonsingle(wm,1,uint8_t,(t),(h),(o),(a),(c))
! 353: #define bus_space_write_multi_2(t, h, o, a, c) \
! 354: __bs_nonsingle(wm,2,uint16_t,(t),(h),(o),(a),(c))
! 355: #define bus_space_write_multi_4(t, h, o, a, c) \
! 356: __bs_nonsingle(wm,4,uint32_t,(t),(h),(o),(a),(c))
! 357: #define bus_space_write_multi_8(t, h, o, a, c) \
! 358: __bs_nonsingle(wm,8,uint64_t,(t),(h),(o),(a),(c))
! 359:
! 360: #define bus_space_write_raw_multi_2(t, h, o, a, c) \
! 361: __bs_nonsingle(wrm,2,uint16_t,(t),(h),(o),(a),(c))
! 362: #define bus_space_write_raw_multi_4(t, h, o, a, c) \
! 363: __bs_nonsingle(wrm,4,uint32_t,(t),(h),(o),(a),(c))
! 364: #define bus_space_write_raw_multi_8(t, h, o, a, c) \
! 365: __bs_nonsingle(wrm,8,uint64_t,(t),(h),(o),(a),(c))
! 366:
! 367:
! 368: /*
! 369: * Bus write region operations.
! 370: */
! 371: #define bus_space_write_region_1(t, h, o, a, c) \
! 372: __bs_nonsingle(wr,1,uint8_t,(t),(h),(o),(a),(c))
! 373: #define bus_space_write_region_2(t, h, o, a, c) \
! 374: __bs_nonsingle(wr,2,uint16_t,(t),(h),(o),(a),(c))
! 375: #define bus_space_write_region_4(t, h, o, a, c) \
! 376: __bs_nonsingle(wr,4,uint32_t,(t),(h),(o),(a),(c))
! 377: #define bus_space_write_region_8(t, h, o, a, c) \
! 378: __bs_nonsingle(wr,8,uint64_t,(t),(h),(o),(a),(c))
! 379:
! 380: #define bus_space_write_raw_region_2(t, h, o, a, c) \
! 381: __bs_nonsingle(wrr,2,uint16_t,(t),(h),(o),(a),(c))
! 382: #define bus_space_write_raw_region_4(t, h, o, a, c) \
! 383: __bs_nonsingle(wrr,4,uint32_t,(t),(h),(o),(a),(c))
! 384: #define bus_space_write_raw_region_8(t, h, o, a, c) \
! 385: __bs_nonsingle(wrr,8,uint64_t,(t),(h),(o),(a),(c))
! 386:
! 387:
! 388: /*
! 389: * Set multiple operations.
! 390: */
! 391: #define bus_space_set_multi_1(t, h, o, v, c) \
! 392: __bs_set(sm,1,uint8_t,(t),(h),(o),(v),(c))
! 393: #define bus_space_set_multi_2(t, h, o, v, c) \
! 394: __bs_set(sm,2,uint16_t,(t),(h),(o),(v),(c))
! 395: #define bus_space_set_multi_4(t, h, o, v, c) \
! 396: __bs_set(sm,4,uint32_t,(t),(h),(o),(v),(c))
! 397: #define bus_space_set_multi_8(t, h, o, v, c) \
! 398: __bs_set(sm,8,uint64_t,(t),(h),(o),(v),(c))
! 399:
! 400:
! 401: /*
! 402: * Set region operations.
! 403: */
! 404: #define bus_space_set_region_1(t, h, o, v, c) \
! 405: __bs_set(sr,1,uint8_t,(t),(h),(o),(v),(c))
! 406: #define bus_space_set_region_2(t, h, o, v, c) \
! 407: __bs_set(sr,2,uint16_t,(t),(h),(o),(v),(c))
! 408: #define bus_space_set_region_4(t, h, o, v, c) \
! 409: __bs_set(sr,4,uint32_t,(t),(h),(o),(v),(c))
! 410: #define bus_space_set_region_8(t, h, o, v, c) \
! 411: __bs_set(sr,8,uint64_t,(t),(h),(o),(v),(c))
! 412:
! 413:
! 414: /*
! 415: * Copy region operations.
! 416: */
! 417: #define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
! 418: __bs_copy(1, uint8_t, (t), (h1), (o1), (h2), (o2), (c))
! 419: #define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
! 420: __bs_copy(2, uint16_t, (t), (h1), (o1), (h2), (o2), (c))
! 421: #define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
! 422: __bs_copy(4, uint32_t, (t), (h1), (o1), (h2), (o2), (c))
! 423: #define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \
! 424: __bs_copy(8, uint64_t, (t), (h1), (o1), (h2), (o2), (c))
! 425:
! 426: #endif /* _KERNEL */
! 427:
! 428: /*
! 429: * Flags used in various bus DMA methods.
! 430: */
! 431: #define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
! 432: #define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
! 433: #define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
! 434: #define BUS_DMA_COHERENT 0x004 /* map memory to not require sync */
! 435: #define BUS_DMA_STREAMING 0x008 /* hint: sequential, unidirectional */
! 436: #define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */
! 437: #define BUS_DMA_BUS2 0x020
! 438: #define BUS_DMA_BUS3 0x040
! 439: #define BUS_DMA_BUS4 0x080
! 440: #define BUS_DMA_READ 0x100 /* mapping is device -> memory only */
! 441: #define BUS_DMA_WRITE 0x200 /* mapping is memory -> device only */
! 442: #define BUS_DMA_NOCACHE 0x400 /* hint: map non-cached memory */
! 443:
! 444: /* Forwards needed by prototypes below. */
! 445: struct mbuf;
! 446: struct uio;
! 447:
! 448: /*
! 449: * Operations performed by bus_dmamap_sync().
! 450: */
! 451: #define BUS_DMASYNC_PREREAD 0x01
! 452: #define BUS_DMASYNC_POSTREAD 0x02
! 453: #define BUS_DMASYNC_PREWRITE 0x04
! 454: #define BUS_DMASYNC_POSTWRITE 0x08
! 455:
! 456: typedef struct _bus_dma_tag *bus_dma_tag_t;
! 457: typedef struct _bus_dmamap *bus_dmamap_t;
! 458:
! 459: #define BUS_DMA_TAG_VALID(t) ((t) != (bus_dma_tag_t)0)
! 460:
! 461: /*
! 462: * bus_dma_segment_t
! 463: *
! 464: * Describes a single contiguous DMA transaction. Values
! 465: * are suitable for programming into DMA registers.
! 466: */
! 467: struct _bus_dma_segment {
! 468: bus_addr_t ds_addr; /* DMA address */
! 469: bus_size_t ds_len; /* length of transfer */
! 470:
! 471: /* private section */
! 472: bus_addr_t _ds_vaddr; /* virtual address */
! 473: };
! 474: typedef struct _bus_dma_segment bus_dma_segment_t;
! 475:
! 476: /*
! 477: * bus_dma_tag_t
! 478: *
! 479: * A machine-dependent opaque type describing the implementation of
! 480: * DMA for a given bus.
! 481: */
! 482:
! 483: struct _bus_dma_tag {
! 484: void *_cookie; /* cookie used in the guts */
! 485:
! 486: /*
! 487: * DMA mapping methods.
! 488: */
! 489: int (*_dmamap_create)(bus_dma_tag_t, bus_size_t, int,
! 490: bus_size_t, bus_size_t, int, bus_dmamap_t *);
! 491: void (*_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
! 492: int (*_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
! 493: bus_size_t, struct proc *, int);
! 494: int (*_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
! 495: struct mbuf *, int);
! 496: int (*_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t,
! 497: struct uio *, int);
! 498: int (*_dmamap_load_raw)(bus_dma_tag_t, bus_dmamap_t,
! 499: bus_dma_segment_t *, int, bus_size_t, int);
! 500: void (*_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
! 501: void (*_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
! 502: bus_addr_t, bus_size_t, int);
! 503:
! 504: /*
! 505: * DMA memory utility functions.
! 506: */
! 507: int (*_dmamem_alloc)(bus_dma_tag_t, bus_size_t, bus_size_t,
! 508: bus_size_t, bus_dma_segment_t *, int, int *, int);
! 509: void (*_dmamem_free)(bus_dma_tag_t,
! 510: bus_dma_segment_t *, int);
! 511: int (*_dmamem_map)(bus_dma_tag_t, bus_dma_segment_t *,
! 512: int, size_t, caddr_t *, int);
! 513: void (*_dmamem_unmap)(bus_dma_tag_t, caddr_t, size_t);
! 514: paddr_t (*_dmamem_mmap)(bus_dma_tag_t, bus_dma_segment_t *,
! 515: int, off_t, int, int);
! 516: };
! 517:
! 518: #define bus_dmamap_create(t, s, n, m, b, f, p) \
! 519: (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p))
! 520: #define bus_dmamap_destroy(t, p) \
! 521: (*(t)->_dmamap_destroy)((t), (p))
! 522: #define bus_dmamap_load(t, m, b, s, p, f) \
! 523: (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f))
! 524: #define bus_dmamap_load_mbuf(t, m, b, f) \
! 525: (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f))
! 526: #define bus_dmamap_load_uio(t, m, u, f) \
! 527: (*(t)->_dmamap_load_uio)((t), (m), (u), (f))
! 528: #define bus_dmamap_load_raw(t, m, sg, n, s, f) \
! 529: (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f))
! 530: #define bus_dmamap_unload(t, p) \
! 531: (*(t)->_dmamap_unload)((t), (p))
! 532: #define bus_dmamap_sync(t, m, o, l, op) \
! 533: (void)((t)->_dmamap_sync ? \
! 534: (*(t)->_dmamap_sync)((t), (m), (o), (l), (op)) : (void)0)
! 535:
! 536: #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
! 537: (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
! 538: #define bus_dmamem_free(t, sg, n) \
! 539: (*(t)->_dmamem_free)((t), (sg), (n))
! 540: #define bus_dmamem_map(t, sg, n, s, k, f) \
! 541: (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
! 542: #define bus_dmamem_unmap(t, k, s) \
! 543: (*(t)->_dmamem_unmap)((t), (k), (s))
! 544: #define bus_dmamem_mmap(t, sg, n, o, p, f) \
! 545: (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
! 546:
! 547: /*
! 548: * bus_dmamap_t
! 549: *
! 550: * Describes a DMA mapping.
! 551: */
! 552: struct _bus_dmamap {
! 553: /*
! 554: * PRIVATE MEMBERS: not for use my machine-independent code.
! 555: */
! 556: bus_size_t _dm_size; /* largest DMA transfer mappable */
! 557: int _dm_segcnt; /* number of segs this map can map */
! 558: bus_size_t _dm_maxsegsz; /* largest possible segment */
! 559: bus_size_t _dm_boundary; /* don't cross this */
! 560: int _dm_flags; /* misc. flags */
! 561:
! 562: void *_dm_cookie; /* cookie for bus-specific functions */
! 563:
! 564: /*
! 565: * PUBLIC MEMBERS: these are used by machine-independent code.
! 566: */
! 567: bus_size_t dm_mapsize; /* size of the mapping */
! 568: int dm_nsegs; /* # valid segments in mapping */
! 569: bus_dma_segment_t dm_segs[1]; /* segments; variable length */
! 570: };
! 571:
! 572: #if defined(_LANDISK_BUS_DMA_PRIVATE)
! 573: int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
! 574: bus_size_t, int, bus_dmamap_t *);
! 575: void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
! 576: int _bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t,
! 577: struct proc *, int);
! 578: int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *,int);
! 579: int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int);
! 580: int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *,
! 581: int, bus_size_t, int);
! 582: void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
! 583: void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
! 584: bus_size_t, int);
! 585:
! 586: int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size,
! 587: bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs,
! 588: int nsegs, int *rsegs, int flags);
! 589: void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs,
! 590: int nsegs);
! 591: int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs,
! 592: size_t size, caddr_t *kvap, int flags);
! 593: void _bus_dmamem_unmap(bus_dma_tag_t tag, caddr_t kva, size_t size);
! 594: paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs,
! 595: int nsegs, off_t off, int prot, int flags);
! 596: #endif /* _LANDISK_BUS_DMA_PRIVATE */
! 597:
! 598: #endif /* _LANDISK_BUS_H_ */
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