1 /******************************************************************************
   2  *
   3  * Name: acmacros.h - C macros for the entire subsystem.
   4  *
   5  *****************************************************************************/
   6 
   7 /*
   8  * Copyright (C) 2000 - 2011, Intel Corp.
   9  * All rights reserved.
  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  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43 
  44 #ifndef __ACMACROS_H__
  45 #define __ACMACROS_H__
  46 
  47 
  48 /*
  49  * Extract data using a pointer. Any more than a byte and we
  50  * get into potential aligment issues -- see the STORE macros below.
  51  * Use with care.
  52  */
  53 #define ACPI_GET8(ptr)                  *ACPI_CAST_PTR (UINT8, ptr)
  54 #define ACPI_GET16(ptr)                 *ACPI_CAST_PTR (UINT16, ptr)
  55 #define ACPI_GET32(ptr)                 *ACPI_CAST_PTR (UINT32, ptr)
  56 #define ACPI_GET64(ptr)                 *ACPI_CAST_PTR (UINT64, ptr)
  57 #define ACPI_SET8(ptr)                  *ACPI_CAST_PTR (UINT8, ptr)
  58 #define ACPI_SET16(ptr)                 *ACPI_CAST_PTR (UINT16, ptr)
  59 #define ACPI_SET32(ptr)                 *ACPI_CAST_PTR (UINT32, ptr)
  60 #define ACPI_SET64(ptr)                 *ACPI_CAST_PTR (UINT64, ptr)
  61 
  62 /*
  63  * printf() format helpers
  64  */
  65 
  66 /* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */
  67 
  68 #define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)
  69 
  70 #if ACPI_MACHINE_WIDTH == 64
  71 #define ACPI_FORMAT_NATIVE_UINT(i)      ACPI_FORMAT_UINT64(i)
  72 #else
  73 #define ACPI_FORMAT_NATIVE_UINT(i)      0, (i)
  74 #endif
  75 
  76 
  77 /*
  78  * Macros for moving data around to/from buffers that are possibly unaligned.
  79  * If the hardware supports the transfer of unaligned data, just do the store.
  80  * Otherwise, we have to move one byte at a time.
  81  */
  82 #ifdef ACPI_BIG_ENDIAN
  83 /*
  84  * Macros for big-endian machines
  85  */
  86 
  87 /* These macros reverse the bytes during the move, converting little-endian to big endian */
  88 
  89                                                      /* Big Endian      <==        Little Endian */
  90                                                      /*  Hi...Lo                     Lo...Hi     */
  91 /* 16-bit source, 16/32/64 destination */
  92 
  93 #define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[1];\
  94                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[0];}
  95 
  96 #define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d))=0;\
  97                                            ((UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
  98                                            ((UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
  99 
 100 #define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
 101                                            ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
 102                                            ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
 103 
 104 /* 32-bit source, 16/32/64 destination */
 105 
 106 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 107 
 108 #define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[3];\
 109                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[2];\
 110                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
 111                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
 112 
 113 #define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
 114                                            ((UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
 115                                            ((UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
 116                                            ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
 117                                            ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
 118 
 119 /* 64-bit source, 16/32/64 destination */
 120 
 121 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 122 
 123 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
 124 
 125 #define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[7];\
 126                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[6];\
 127                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[5];\
 128                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[4];\
 129                                          ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
 130                                          ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
 131                                          ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
 132                                          ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
 133 #else
 134 /*
 135  * Macros for little-endian machines
 136  */
 137 
 138 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
 139 
 140 /* The hardware supports unaligned transfers, just do the little-endian move */
 141 
 142 /* 16-bit source, 16/32/64 destination */
 143 
 144 #define ACPI_MOVE_16_TO_16(d, s)        *(UINT16 *)(void *)(d) = *(UINT16 *)(void *)(s)
 145 #define ACPI_MOVE_16_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT16 *)(void *)(s)
 146 #define ACPI_MOVE_16_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT16 *)(void *)(s)
 147 
 148 /* 32-bit source, 16/32/64 destination */
 149 
 150 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 151 #define ACPI_MOVE_32_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT32 *)(void *)(s)
 152 #define ACPI_MOVE_32_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT32 *)(void *)(s)
 153 
 154 /* 64-bit source, 16/32/64 destination */
 155 
 156 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 157 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
 158 #define ACPI_MOVE_64_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT64 *)(void *)(s)
 159 
 160 #else
 161 /*
 162  * The hardware does not support unaligned transfers. We must move the
 163  * data one byte at a time. These macros work whether the source or
 164  * the destination (or both) is/are unaligned. (Little-endian move)
 165  */
 166 
 167 /* 16-bit source, 16/32/64 destination */
 168 
 169 #define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
 170                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];}
 171 
 172 #define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
 173 #define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
 174 
 175 /* 32-bit source, 16/32/64 destination */
 176 
 177 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 178 
 179 #define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
 180                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
 181                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
 182                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];}
 183 
 184 #define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
 185 
 186 /* 64-bit source, 16/32/64 destination */
 187 
 188 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
 189 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
 190 #define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
 191                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
 192                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
 193                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];\
 194                                          ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[4];\
 195                                          ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[5];\
 196                                          ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[6];\
 197                                          ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[7];}
 198 #endif
 199 #endif
 200 
 201 
 202 /*
 203  * Fast power-of-two math macros for non-optimized compilers
 204  */
 205 #define _ACPI_DIV(value, PowerOf2)      ((UINT32) ((value) >> (PowerOf2)))
 206 #define _ACPI_MUL(value, PowerOf2)      ((UINT32) ((value) << (PowerOf2)))
 207 #define _ACPI_MOD(value, Divisor)       ((UINT32) ((value) & ((Divisor) -1)))
 208 
 209 #define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
 210 #define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
 211 #define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)
 212 
 213 #define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
 214 #define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
 215 #define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)
 216 
 217 #define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
 218 #define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
 219 #define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)
 220 
 221 #define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
 222 #define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
 223 #define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)
 224 
 225 #define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
 226 #define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
 227 #define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)
 228 
 229 /*
 230  * Rounding macros (Power of two boundaries only)
 231  */
 232 #define ACPI_ROUND_DOWN(value, boundary)    (((ACPI_SIZE)(value)) & \
 233                                                 (~(((ACPI_SIZE) boundary)-1)))
 234 
 235 #define ACPI_ROUND_UP(value, boundary)      ((((ACPI_SIZE)(value)) + \
 236                                                 (((ACPI_SIZE) boundary)-1)) & \
 237                                                 (~(((ACPI_SIZE) boundary)-1)))
 238 
 239 /* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
 240 
 241 #define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
 242 #define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
 243 #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE))
 244 
 245 #define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
 246 #define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
 247 #define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
 248 
 249 #define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
 250 #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
 251 
 252 #define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
 253 
 254 /* Generic (non-power-of-two) rounding */
 255 
 256 #define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))
 257 
 258 #define ACPI_IS_MISALIGNED(value)           (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
 259 
 260 /*
 261  * Bitmask creation
 262  * Bit positions start at zero.
 263  * MASK_BITS_ABOVE creates a mask starting AT the position and above
 264  * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
 265  */
 266 #define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
 267 #define ACPI_MASK_BITS_BELOW(position)      ((ACPI_UINT64_MAX) << ((UINT32) (position)))
 268 
 269 /* Bitfields within ACPI registers */
 270 
 271 #define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)      ((Val << Pos) & Mask)
 272 #define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val)  Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)
 273 
 274 #define ACPI_INSERT_BITS(Target, Mask, Source)          Target = ((Target & (~(Mask))) | (Source & Mask))
 275 
 276 /*
 277  * An ACPI_NAMESPACE_NODE can appear in some contexts
 278  * where a pointer to an ACPI_OPERAND_OBJECT can also
 279  * appear. This macro is used to distinguish them.
 280  *
 281  * The "Descriptor" field is the first field in both structures.
 282  */
 283 #define ACPI_GET_DESCRIPTOR_TYPE(d)     (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType)
 284 #define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = t)
 285 
 286 /*
 287  * Macros for the master AML opcode table
 288  */
 289 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
 290 #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
 291     {Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
 292 #else
 293 #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
 294     {(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
 295 #endif
 296 
 297 #define ARG_TYPE_WIDTH                  5
 298 #define ARG_1(x)                        ((UINT32)(x))
 299 #define ARG_2(x)                        ((UINT32)(x) << (1 * ARG_TYPE_WIDTH))
 300 #define ARG_3(x)                        ((UINT32)(x) << (2 * ARG_TYPE_WIDTH))
 301 #define ARG_4(x)                        ((UINT32)(x) << (3 * ARG_TYPE_WIDTH))
 302 #define ARG_5(x)                        ((UINT32)(x) << (4 * ARG_TYPE_WIDTH))
 303 #define ARG_6(x)                        ((UINT32)(x) << (5 * ARG_TYPE_WIDTH))
 304 
 305 #define ARGI_LIST1(a)                   (ARG_1(a))
 306 #define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
 307 #define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
 308 #define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
 309 #define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
 310 #define ARGI_LIST6(a, b, c, d, e, f)    (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
 311 
 312 #define ARGP_LIST1(a)                   (ARG_1(a))
 313 #define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
 314 #define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
 315 #define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
 316 #define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
 317 #define ARGP_LIST6(a, b, c, d, e, f)    (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
 318 
 319 #define GET_CURRENT_ARG_TYPE(List)      (List & ((UINT32) 0x1F))
 320 #define INCREMENT_ARG_LIST(List)        (List >>= ((UINT32) ARG_TYPE_WIDTH))
 321 
 322 /*
 323  * Ascii error messages can be configured out
 324  */
 325 #ifndef ACPI_NO_ERROR_MESSAGES
 326 /*
 327  * Error reporting. Callers module and line number are inserted by AE_INFO,
 328  * the plist contains a set of parens to allow variable-length lists.
 329  * These macros are used for both the debug and non-debug versions of the code.
 330  */
 331 #define ACPI_ERROR_NAMESPACE(s, e)      AcpiUtNamespaceError (AE_INFO, s, e);
 332 #define ACPI_ERROR_METHOD(s, n, p, e)   AcpiUtMethodError (AE_INFO, s, n, p, e);
 333 #define ACPI_WARN_PREDEFINED(plist)     AcpiUtPredefinedWarning plist
 334 #define ACPI_INFO_PREDEFINED(plist)     AcpiUtPredefinedInfo plist
 335 
 336 #else
 337 
 338 /* No error messages */
 339 
 340 #define ACPI_ERROR_NAMESPACE(s, e)
 341 #define ACPI_ERROR_METHOD(s, n, p, e)
 342 #define ACPI_WARN_PREDEFINED(plist)
 343 #define ACPI_INFO_PREDEFINED(plist)
 344 
 345 #endif /* ACPI_NO_ERROR_MESSAGES */
 346 
 347 /*
 348  * Debug macros that are conditionally compiled
 349  */
 350 #ifdef ACPI_DEBUG_OUTPUT
 351 /*
 352  * Function entry tracing
 353  */
 354 #define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
 355                                             AcpiUtTrace(ACPI_DEBUG_PARAMETERS)
 356 #define ACPI_FUNCTION_TRACE_PTR(a, b)   ACPI_FUNCTION_NAME(a) \
 357                                             AcpiUtTracePtr(ACPI_DEBUG_PARAMETERS, (void *)b)
 358 #define ACPI_FUNCTION_TRACE_U32(a, b)   ACPI_FUNCTION_NAME(a) \
 359                                             AcpiUtTraceU32(ACPI_DEBUG_PARAMETERS, (UINT32)b)
 360 #define ACPI_FUNCTION_TRACE_STR(a, b)   ACPI_FUNCTION_NAME(a) \
 361                                             AcpiUtTraceStr(ACPI_DEBUG_PARAMETERS, (char *)b)
 362 
 363 #define ACPI_FUNCTION_ENTRY()           AcpiUtTrackStackPtr()
 364 
 365 /*
 366  * Function exit tracing.
 367  * WARNING: These macros include a return statement. This is usually considered
 368  * bad form, but having a separate exit macro is very ugly and difficult to maintain.
 369  * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
 370  * so that "_AcpiFunctionName" is defined.
 371  *
 372  * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
 373  * about these constructs.
 374  */
 375 #ifdef ACPI_USE_DO_WHILE_0
 376 #define ACPI_DO_WHILE0(a)               do a while(0)
 377 #else
 378 #define ACPI_DO_WHILE0(a)               a
 379 #endif
 380 
 381 #define return_VOID                     ACPI_DO_WHILE0 ({ \
 382                                             AcpiUtExit (ACPI_DEBUG_PARAMETERS); \
 383                                             return;})
 384 /*
 385  * There are two versions of most of the return macros. The default version is
 386  * safer, since it avoids side-effects by guaranteeing that the argument will
 387  * not be evaluated twice.
 388  *
 389  * A less-safe version of the macros is provided for optional use if the
 390  * compiler uses excessive CPU stack (for example, this may happen in the
 391  * debug case if code optimzation is disabled.)
 392  */
 393 #ifndef ACPI_SIMPLE_RETURN_MACROS
 394 
 395 #define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
 396                                             register ACPI_STATUS _s = (s); \
 397                                             AcpiUtStatusExit (ACPI_DEBUG_PARAMETERS, _s); \
 398                                             return (_s); })
 399 #define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
 400                                             register void *_s = (void *) (s); \
 401                                             AcpiUtPtrExit (ACPI_DEBUG_PARAMETERS, (UINT8 *) _s); \
 402                                             return (_s); })
 403 #define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
 404                                             register UINT64 _s = (s); \
 405                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, _s); \
 406                                             return (_s); })
 407 #define return_UINT8(s)                 ACPI_DO_WHILE0 ({ \
 408                                             register UINT8 _s = (UINT8) (s); \
 409                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) _s); \
 410                                             return (_s); })
 411 #define return_UINT32(s)                ACPI_DO_WHILE0 ({ \
 412                                             register UINT32 _s = (UINT32) (s); \
 413                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) _s); \
 414                                             return (_s); })
 415 #else /* Use original less-safe macros */
 416 
 417 #define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
 418                                             AcpiUtStatusExit (ACPI_DEBUG_PARAMETERS, (s)); \
 419                                             return((s)); })
 420 #define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
 421                                             AcpiUtPtrExit (ACPI_DEBUG_PARAMETERS, (UINT8 *) (s)); \
 422                                             return((s)); })
 423 #define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
 424                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) (s)); \
 425                                             return((s)); })
 426 #define return_UINT8(s)                 return_VALUE(s)
 427 #define return_UINT32(s)                return_VALUE(s)
 428 
 429 #endif /* ACPI_SIMPLE_RETURN_MACROS */
 430 
 431 
 432 /* Conditional execution */
 433 
 434 #define ACPI_DEBUG_EXEC(a)              a
 435 #define ACPI_DEBUG_ONLY_MEMBERS(a)      a;
 436 #define _VERBOSE_STRUCTURES
 437 
 438 
 439 /* Various object display routines for debug */
 440 
 441 #define ACPI_DUMP_STACK_ENTRY(a)        AcpiExDumpOperand((a), 0)
 442 #define ACPI_DUMP_OPERANDS(a, b ,c)     AcpiExDumpOperands(a, b, c)
 443 #define ACPI_DUMP_ENTRY(a, b)           AcpiNsDumpEntry (a, b)
 444 #define ACPI_DUMP_PATHNAME(a, b, c, d)  AcpiNsDumpPathname(a, b, c, d)
 445 #define ACPI_DUMP_BUFFER(a, b)          AcpiUtDumpBuffer((UINT8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
 446 
 447 #else
 448 /*
 449  * This is the non-debug case -- make everything go away,
 450  * leaving no executable debug code!
 451  */
 452 #define ACPI_DEBUG_EXEC(a)
 453 #define ACPI_DEBUG_ONLY_MEMBERS(a)
 454 #define ACPI_FUNCTION_TRACE(a)
 455 #define ACPI_FUNCTION_TRACE_PTR(a, b)
 456 #define ACPI_FUNCTION_TRACE_U32(a, b)
 457 #define ACPI_FUNCTION_TRACE_STR(a, b)
 458 #define ACPI_FUNCTION_EXIT
 459 #define ACPI_FUNCTION_STATUS_EXIT(s)
 460 #define ACPI_FUNCTION_VALUE_EXIT(s)
 461 #define ACPI_FUNCTION_ENTRY()
 462 #define ACPI_DUMP_STACK_ENTRY(a)
 463 #define ACPI_DUMP_OPERANDS(a, b, c)
 464 #define ACPI_DUMP_ENTRY(a, b)
 465 #define ACPI_DUMP_TABLES(a, b)
 466 #define ACPI_DUMP_PATHNAME(a, b, c, d)
 467 #define ACPI_DUMP_BUFFER(a, b)
 468 #define ACPI_DEBUG_PRINT(pl)
 469 #define ACPI_DEBUG_PRINT_RAW(pl)
 470 
 471 #define return_VOID                     return
 472 #define return_ACPI_STATUS(s)           return(s)
 473 #define return_VALUE(s)                 return(s)
 474 #define return_UINT8(s)                 return(s)
 475 #define return_UINT32(s)                return(s)
 476 #define return_PTR(s)                   return(s)
 477 
 478 #endif /* ACPI_DEBUG_OUTPUT */
 479 
 480 /*
 481  * Some code only gets executed when the debugger is built in.
 482  * Note that this is entirely independent of whether the
 483  * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
 484  */
 485 #ifdef ACPI_DEBUGGER
 486 #define ACPI_DEBUGGER_EXEC(a)           a
 487 #else
 488 #define ACPI_DEBUGGER_EXEC(a)
 489 #endif
 490 
 491 
 492 /*
 493  * Memory allocation tracking (DEBUG ONLY)
 494  */
 495 #define ACPI_MEM_PARAMETERS         _COMPONENT, _AcpiModuleName, __LINE__
 496 
 497 #ifndef ACPI_DBG_TRACK_ALLOCATIONS
 498 
 499 /* Memory allocation */
 500 
 501 #define ACPI_ALLOCATE(a)            AcpiUtAllocate((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
 502 #define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroed((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
 503 #define ACPI_FREE(a)                AcpiOsFree(a)
 504 #define ACPI_MEM_TRACKING(a)
 505 
 506 #else
 507 
 508 /* Memory allocation */
 509 
 510 #define ACPI_ALLOCATE(a)            AcpiUtAllocateAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
 511 #define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroedAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
 512 #define ACPI_FREE(a)                AcpiUtFreeAndTrack(a, ACPI_MEM_PARAMETERS)
 513 #define ACPI_MEM_TRACKING(a)        a
 514 
 515 #endif /* ACPI_DBG_TRACK_ALLOCATIONS */
 516 
 517 
 518 /*
 519  * Macros used for ACPICA utilities only
 520  */
 521 
 522 /* Generate a UUID */
 523 
 524 #define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
 525     (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
 526     (b) & 0xFF, ((b) >> 8) & 0xFF, \
 527     (c) & 0xFF, ((c) >> 8) & 0xFF, \
 528     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
 529 
 530 #define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
 531 
 532 
 533 #endif /* ACMACROS_H */