acmacros.h 29 KB

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  1. /******************************************************************************
  2. *
  3. * Name: acmacros.h - C macros for the entire subsystem.
  4. *
  5. *****************************************************************************/
  6. /*
  7. * Copyright (C) 2000 - 2006, R. Byron Moore
  8. * All rights reserved.
  9. *
  10. * Redistribution and use in source and binary forms, with or without
  11. * modification, are permitted provided that the following conditions
  12. * are met:
  13. * 1. Redistributions of source code must retain the above copyright
  14. * notice, this list of conditions, and the following disclaimer,
  15. * without modification.
  16. * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  17. * substantially similar to the "NO WARRANTY" disclaimer below
  18. * ("Disclaimer") and any redistribution must be conditioned upon
  19. * including a substantially similar Disclaimer requirement for further
  20. * binary redistribution.
  21. * 3. Neither the names of the above-listed copyright holders nor the names
  22. * of any contributors may be used to endorse or promote products derived
  23. * from this software without specific prior written permission.
  24. *
  25. * Alternatively, this software may be distributed under the terms of the
  26. * GNU General Public License ("GPL") version 2 as published by the Free
  27. * Software Foundation.
  28. *
  29. * NO WARRANTY
  30. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  31. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  32. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  33. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  34. * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  38. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  39. * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40. * POSSIBILITY OF SUCH DAMAGES.
  41. */
  42. #ifndef __ACMACROS_H__
  43. #define __ACMACROS_H__
  44. /*
  45. * Data manipulation macros
  46. */
  47. #define ACPI_LOWORD(l) ((u16)(u32)(l))
  48. #define ACPI_HIWORD(l) ((u16)((((u32)(l)) >> 16) & 0xFFFF))
  49. #define ACPI_LOBYTE(l) ((u8)(u16)(l))
  50. #define ACPI_HIBYTE(l) ((u8)((((u16)(l)) >> 8) & 0xFF))
  51. #define ACPI_SET_BIT(target,bit) ((target) |= (bit))
  52. #define ACPI_CLEAR_BIT(target,bit) ((target) &= ~(bit))
  53. #define ACPI_MIN(a,b) (((a)<(b))?(a):(b))
  54. /* Size calculation */
  55. #define ACPI_ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
  56. #if ACPI_MACHINE_WIDTH == 16
  57. /*
  58. * For 16-bit addresses, we have to assume that the upper 32 bits
  59. * (out of 64) are zero.
  60. */
  61. #define ACPI_LODWORD(l) ((u32)(l))
  62. #define ACPI_HIDWORD(l) ((u32)(0))
  63. #define ACPI_GET_ADDRESS(a) ((a).lo)
  64. #define ACPI_STORE_ADDRESS(a,b) {(a).hi=0;(a).lo=(u32)(b);}
  65. #define ACPI_VALID_ADDRESS(a) ((a).hi | (a).lo)
  66. #else
  67. #ifdef ACPI_NO_INTEGER64_SUPPORT
  68. /*
  69. * acpi_integer is 32-bits, no 64-bit support on this platform
  70. */
  71. #define ACPI_LODWORD(l) ((u32)(l))
  72. #define ACPI_HIDWORD(l) ((u32)(0))
  73. #define ACPI_GET_ADDRESS(a) (a)
  74. #define ACPI_STORE_ADDRESS(a,b) ((a)=(b))
  75. #define ACPI_VALID_ADDRESS(a) (a)
  76. #else
  77. /*
  78. * Full 64-bit address/integer on both 32-bit and 64-bit platforms
  79. */
  80. #define ACPI_LODWORD(l) ((u32)(u64)(l))
  81. #define ACPI_HIDWORD(l) ((u32)(((*(struct uint64_struct *)(void *)(&l))).hi))
  82. #define ACPI_GET_ADDRESS(a) (a)
  83. #define ACPI_STORE_ADDRESS(a,b) ((a)=(acpi_physical_address)(b))
  84. #define ACPI_VALID_ADDRESS(a) (a)
  85. #endif
  86. #endif
  87. /*
  88. * printf() format helpers
  89. */
  90. /* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
  91. #define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i),ACPI_LODWORD(i)
  92. /*
  93. * Extract data using a pointer. Any more than a byte and we
  94. * get into potential aligment issues -- see the STORE macros below.
  95. * Use with care.
  96. */
  97. #define ACPI_GET8(ptr) *ACPI_CAST_PTR (u8, ptr)
  98. #define ACPI_GET16(ptr) *ACPI_CAST_PTR (u16, ptr)
  99. #define ACPI_GET32(ptr) *ACPI_CAST_PTR (u32, ptr)
  100. #define ACPI_GET64(ptr) *ACPI_CAST_PTR (u64, ptr)
  101. #define ACPI_SET8(ptr) *ACPI_CAST_PTR (u8, ptr)
  102. #define ACPI_SET16(ptr) *ACPI_CAST_PTR (u16, ptr)
  103. #define ACPI_SET32(ptr) *ACPI_CAST_PTR (u32, ptr)
  104. #define ACPI_SET64(ptr) *ACPI_CAST_PTR (u64, ptr)
  105. /*
  106. * Pointer manipulation
  107. */
  108. #define ACPI_CAST_PTR(t, p) ((t *) (acpi_uintptr_t) (p))
  109. #define ACPI_CAST_INDIRECT_PTR(t, p) ((t **) (acpi_uintptr_t) (p))
  110. #define ACPI_ADD_PTR(t,a,b) ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8,(a)) + (acpi_native_uint)(b)))
  111. #define ACPI_PTR_DIFF(a,b) (acpi_native_uint) (ACPI_CAST_PTR (u8,(a)) - ACPI_CAST_PTR (u8,(b)))
  112. /* Pointer/Integer type conversions */
  113. #define ACPI_TO_POINTER(i) ACPI_ADD_PTR (void,(void *) NULL,(acpi_native_uint) i)
  114. #define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p,(void *) NULL)
  115. #define ACPI_OFFSET(d,f) (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f),(void *) NULL)
  116. #if ACPI_MACHINE_WIDTH == 16
  117. #define ACPI_STORE_POINTER(d,s) ACPI_MOVE_32_TO_32(d,s)
  118. #define ACPI_PHYSADDR_TO_PTR(i) (void *)(i)
  119. #define ACPI_PTR_TO_PHYSADDR(i) (u32) ACPI_CAST_PTR (u8,(i))
  120. #else
  121. #define ACPI_PHYSADDR_TO_PTR(i) ACPI_TO_POINTER(i)
  122. #define ACPI_PTR_TO_PHYSADDR(i) ACPI_TO_INTEGER(i)
  123. #endif
  124. #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
  125. #define ACPI_COMPARE_NAME(a,b) (*ACPI_CAST_PTR (u32,(a)) == *ACPI_CAST_PTR (u32,(b)))
  126. #else
  127. #define ACPI_COMPARE_NAME(a,b) (!ACPI_STRNCMP (ACPI_CAST_PTR (char,(a)), ACPI_CAST_PTR (char,(b)), ACPI_NAME_SIZE))
  128. #endif
  129. /*
  130. * Macros for moving data around to/from buffers that are possibly unaligned.
  131. * If the hardware supports the transfer of unaligned data, just do the store.
  132. * Otherwise, we have to move one byte at a time.
  133. */
  134. #ifdef ACPI_BIG_ENDIAN
  135. /*
  136. * Macros for big-endian machines
  137. */
  138. /* This macro sets a buffer index, starting from the end of the buffer */
  139. #define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) ((buf_len) - (((buf_offset)+1) * (byte_gran)))
  140. /* These macros reverse the bytes during the move, converting little-endian to big endian */
  141. /* Big Endian <== Little Endian */
  142. /* Hi...Lo Lo...Hi */
  143. /* 16-bit source, 16/32/64 destination */
  144. #define ACPI_MOVE_16_TO_16(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
  145. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
  146. #define ACPI_MOVE_16_TO_32(d,s) {(*(u32 *)(void *)(d))=0;\
  147. ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
  148. ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
  149. #define ACPI_MOVE_16_TO_64(d,s) {(*(u64 *)(void *)(d))=0;\
  150. ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
  151. ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
  152. /* 32-bit source, 16/32/64 destination */
  153. #define ACPI_MOVE_32_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  154. #define ACPI_MOVE_32_TO_32(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
  155. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
  156. (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
  157. (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
  158. #define ACPI_MOVE_32_TO_64(d,s) {(*(u64 *)(void *)(d))=0;\
  159. ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
  160. ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
  161. ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
  162. ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
  163. /* 64-bit source, 16/32/64 destination */
  164. #define ACPI_MOVE_64_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  165. #define ACPI_MOVE_64_TO_32(d,s) ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
  166. #define ACPI_MOVE_64_TO_64(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
  167. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
  168. (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
  169. (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
  170. (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
  171. (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
  172. (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
  173. (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
  174. #else
  175. /*
  176. * Macros for little-endian machines
  177. */
  178. /* This macro sets a buffer index, starting from the beginning of the buffer */
  179. #define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) (buf_offset)
  180. #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
  181. /* The hardware supports unaligned transfers, just do the little-endian move */
  182. #if ACPI_MACHINE_WIDTH == 16
  183. /* No 64-bit integers */
  184. /* 16-bit source, 16/32/64 destination */
  185. #define ACPI_MOVE_16_TO_16(d,s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
  186. #define ACPI_MOVE_16_TO_32(d,s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
  187. #define ACPI_MOVE_16_TO_64(d,s) ACPI_MOVE_16_TO_32(d,s)
  188. /* 32-bit source, 16/32/64 destination */
  189. #define ACPI_MOVE_32_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  190. #define ACPI_MOVE_32_TO_32(d,s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
  191. #define ACPI_MOVE_32_TO_64(d,s) ACPI_MOVE_32_TO_32(d,s)
  192. /* 64-bit source, 16/32/64 destination */
  193. #define ACPI_MOVE_64_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  194. #define ACPI_MOVE_64_TO_32(d,s) ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
  195. #define ACPI_MOVE_64_TO_64(d,s) ACPI_MOVE_32_TO_32(d,s)
  196. #else
  197. /* 16-bit source, 16/32/64 destination */
  198. #define ACPI_MOVE_16_TO_16(d,s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
  199. #define ACPI_MOVE_16_TO_32(d,s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
  200. #define ACPI_MOVE_16_TO_64(d,s) *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
  201. /* 32-bit source, 16/32/64 destination */
  202. #define ACPI_MOVE_32_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  203. #define ACPI_MOVE_32_TO_32(d,s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
  204. #define ACPI_MOVE_32_TO_64(d,s) *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
  205. /* 64-bit source, 16/32/64 destination */
  206. #define ACPI_MOVE_64_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  207. #define ACPI_MOVE_64_TO_32(d,s) ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
  208. #define ACPI_MOVE_64_TO_64(d,s) *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
  209. #endif
  210. #else
  211. /*
  212. * The hardware does not support unaligned transfers. We must move the
  213. * data one byte at a time. These macros work whether the source or
  214. * the destination (or both) is/are unaligned. (Little-endian move)
  215. */
  216. /* 16-bit source, 16/32/64 destination */
  217. #define ACPI_MOVE_16_TO_16(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
  218. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
  219. #define ACPI_MOVE_16_TO_32(d,s) {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
  220. #define ACPI_MOVE_16_TO_64(d,s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
  221. /* 32-bit source, 16/32/64 destination */
  222. #define ACPI_MOVE_32_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  223. #define ACPI_MOVE_32_TO_32(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
  224. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
  225. (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
  226. (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
  227. #define ACPI_MOVE_32_TO_64(d,s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d,s);}
  228. /* 64-bit source, 16/32/64 destination */
  229. #define ACPI_MOVE_64_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s) /* Truncate to 16 */
  230. #define ACPI_MOVE_64_TO_32(d,s) ACPI_MOVE_32_TO_32(d,s) /* Truncate to 32 */
  231. #define ACPI_MOVE_64_TO_64(d,s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
  232. (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
  233. (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
  234. (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
  235. (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
  236. (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
  237. (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
  238. (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
  239. #endif
  240. #endif
  241. /* Macros based on machine integer width */
  242. #if ACPI_MACHINE_WIDTH == 16
  243. #define ACPI_MOVE_SIZE_TO_16(d,s) ACPI_MOVE_16_TO_16(d,s)
  244. #elif ACPI_MACHINE_WIDTH == 32
  245. #define ACPI_MOVE_SIZE_TO_16(d,s) ACPI_MOVE_32_TO_16(d,s)
  246. #elif ACPI_MACHINE_WIDTH == 64
  247. #define ACPI_MOVE_SIZE_TO_16(d,s) ACPI_MOVE_64_TO_16(d,s)
  248. #else
  249. #error unknown ACPI_MACHINE_WIDTH
  250. #endif
  251. /*
  252. * Fast power-of-two math macros for non-optimized compilers
  253. */
  254. #define _ACPI_DIV(value,power_of2) ((u32) ((value) >> (power_of2)))
  255. #define _ACPI_MUL(value,power_of2) ((u32) ((value) << (power_of2)))
  256. #define _ACPI_MOD(value,divisor) ((u32) ((value) & ((divisor) -1)))
  257. #define ACPI_DIV_2(a) _ACPI_DIV(a,1)
  258. #define ACPI_MUL_2(a) _ACPI_MUL(a,1)
  259. #define ACPI_MOD_2(a) _ACPI_MOD(a,2)
  260. #define ACPI_DIV_4(a) _ACPI_DIV(a,2)
  261. #define ACPI_MUL_4(a) _ACPI_MUL(a,2)
  262. #define ACPI_MOD_4(a) _ACPI_MOD(a,4)
  263. #define ACPI_DIV_8(a) _ACPI_DIV(a,3)
  264. #define ACPI_MUL_8(a) _ACPI_MUL(a,3)
  265. #define ACPI_MOD_8(a) _ACPI_MOD(a,8)
  266. #define ACPI_DIV_16(a) _ACPI_DIV(a,4)
  267. #define ACPI_MUL_16(a) _ACPI_MUL(a,4)
  268. #define ACPI_MOD_16(a) _ACPI_MOD(a,16)
  269. #define ACPI_DIV_32(a) _ACPI_DIV(a,5)
  270. #define ACPI_MUL_32(a) _ACPI_MUL(a,5)
  271. #define ACPI_MOD_32(a) _ACPI_MOD(a,32)
  272. /*
  273. * Rounding macros (Power of two boundaries only)
  274. */
  275. #define ACPI_ROUND_DOWN(value,boundary) (((acpi_native_uint)(value)) & \
  276. (~(((acpi_native_uint) boundary)-1)))
  277. #define ACPI_ROUND_UP(value,boundary) ((((acpi_native_uint)(value)) + \
  278. (((acpi_native_uint) boundary)-1)) & \
  279. (~(((acpi_native_uint) boundary)-1)))
  280. /* Note: sizeof(acpi_native_uint) evaluates to either 2, 4, or 8 */
  281. #define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a,4)
  282. #define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a,8)
  283. #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a,sizeof(acpi_native_uint))
  284. #define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a,4)
  285. #define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a,8)
  286. #define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a,sizeof(acpi_native_uint))
  287. #define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
  288. #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
  289. #define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
  290. /* Generic (non-power-of-two) rounding */
  291. #define ACPI_ROUND_UP_TO(value,boundary) (((value) + ((boundary)-1)) / (boundary))
  292. #define ACPI_IS_MISALIGNED(value) (((acpi_native_uint)value) & (sizeof(acpi_native_uint)-1))
  293. /*
  294. * Bitmask creation
  295. * Bit positions start at zero.
  296. * MASK_BITS_ABOVE creates a mask starting AT the position and above
  297. * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
  298. */
  299. #define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_INTEGER_MAX) << ((u32) (position))))
  300. #define ACPI_MASK_BITS_BELOW(position) ((ACPI_INTEGER_MAX) << ((u32) (position)))
  301. #define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7'))
  302. /* Bitfields within ACPI registers */
  303. #define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) ((val << pos) & mask)
  304. #define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
  305. #define ACPI_INSERT_BITS(target, mask, source) target = ((target & (~(mask))) | (source & mask))
  306. /* Generate a UUID */
  307. #define ACPI_INIT_UUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
  308. (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
  309. (b) & 0xFF, ((b) >> 8) & 0xFF, \
  310. (c) & 0xFF, ((c) >> 8) & 0xFF, \
  311. (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
  312. /*
  313. * An struct acpi_namespace_node * can appear in some contexts,
  314. * where a pointer to an union acpi_operand_object can also
  315. * appear. This macro is used to distinguish them.
  316. *
  317. * The "Descriptor" field is the first field in both structures.
  318. */
  319. #define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
  320. #define ACPI_SET_DESCRIPTOR_TYPE(d,t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
  321. /* Macro to test the object type */
  322. #define ACPI_GET_OBJECT_TYPE(d) (((union acpi_operand_object *)(void *)(d))->common.type)
  323. /* Macro to check the table flags for SINGLE or MULTIPLE tables are allowed */
  324. #define ACPI_IS_SINGLE_TABLE(x) (((x) & 0x01) == ACPI_TABLE_SINGLE ? 1 : 0)
  325. /*
  326. * Macros for the master AML opcode table
  327. */
  328. #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
  329. #define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags) {name,(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
  330. #else
  331. #define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags) {(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
  332. #endif
  333. #ifdef ACPI_DISASSEMBLER
  334. #define ACPI_DISASM_ONLY_MEMBERS(a) a;
  335. #else
  336. #define ACPI_DISASM_ONLY_MEMBERS(a)
  337. #endif
  338. #define ARG_TYPE_WIDTH 5
  339. #define ARG_1(x) ((u32)(x))
  340. #define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH))
  341. #define ARG_3(x) ((u32)(x) << (2 * ARG_TYPE_WIDTH))
  342. #define ARG_4(x) ((u32)(x) << (3 * ARG_TYPE_WIDTH))
  343. #define ARG_5(x) ((u32)(x) << (4 * ARG_TYPE_WIDTH))
  344. #define ARG_6(x) ((u32)(x) << (5 * ARG_TYPE_WIDTH))
  345. #define ARGI_LIST1(a) (ARG_1(a))
  346. #define ARGI_LIST2(a,b) (ARG_1(b)|ARG_2(a))
  347. #define ARGI_LIST3(a,b,c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
  348. #define ARGI_LIST4(a,b,c,d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
  349. #define ARGI_LIST5(a,b,c,d,e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
  350. #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))
  351. #define ARGP_LIST1(a) (ARG_1(a))
  352. #define ARGP_LIST2(a,b) (ARG_1(a)|ARG_2(b))
  353. #define ARGP_LIST3(a,b,c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
  354. #define ARGP_LIST4(a,b,c,d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
  355. #define ARGP_LIST5(a,b,c,d,e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
  356. #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))
  357. #define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F))
  358. #define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH))
  359. #if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
  360. /*
  361. * Module name is include in both debug and non-debug versions primarily for
  362. * error messages. The __FILE__ macro is not very useful for this, because it
  363. * often includes the entire pathname to the module
  364. */
  365. #define ACPI_MODULE_NAME(name) static char ACPI_UNUSED_VAR *_acpi_module_name = name;
  366. #else
  367. #define ACPI_MODULE_NAME(name)
  368. #endif
  369. /*
  370. * Ascii error messages can be configured out
  371. */
  372. #ifndef ACPI_NO_ERROR_MESSAGES
  373. #define AE_INFO _acpi_module_name, __LINE__
  374. /*
  375. * Error reporting. Callers module and line number are inserted by AE_INFO,
  376. * the plist contains a set of parens to allow variable-length lists.
  377. * These macros are used for both the debug and non-debug versions of the code.
  378. */
  379. #define ACPI_INFO(plist) acpi_ut_info plist
  380. #define ACPI_WARNING(plist) acpi_ut_warning plist
  381. #define ACPI_EXCEPTION(plist) acpi_ut_exception plist
  382. #define ACPI_ERROR(plist) acpi_ut_error plist
  383. #define ACPI_ERROR_NAMESPACE(s,e) acpi_ns_report_error (AE_INFO, s, e);
  384. #define ACPI_ERROR_METHOD(s,n,p,e) acpi_ns_report_method_error (AE_INFO, s, n, p, e);
  385. #else
  386. /* No error messages */
  387. #define ACPI_INFO(plist)
  388. #define ACPI_WARNING(plist)
  389. #define ACPI_EXCEPTION(plist)
  390. #define ACPI_ERROR(plist)
  391. #define ACPI_ERROR_NAMESPACE(s,e)
  392. #define ACPI_ERROR_METHOD(s,n,p,e)
  393. #endif
  394. /*
  395. * Debug macros that are conditionally compiled
  396. */
  397. #ifdef ACPI_DEBUG_OUTPUT
  398. /*
  399. * Common parameters used for debug output functions:
  400. * line number, function name, module(file) name, component ID
  401. */
  402. #define ACPI_DEBUG_PARAMETERS __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
  403. /*
  404. * Function entry tracing
  405. */
  406. /*
  407. * If ACPI_GET_FUNCTION_NAME was not defined in the compiler-dependent header,
  408. * define it now. This is the case where there the compiler does not support
  409. * a __FUNCTION__ macro or equivalent. We save the function name on the
  410. * local stack.
  411. */
  412. #ifndef ACPI_GET_FUNCTION_NAME
  413. #define ACPI_GET_FUNCTION_NAME _acpi_function_name
  414. /*
  415. * The Name parameter should be the procedure name as a quoted string.
  416. * This is declared as a local string ("MyFunctionName") so that it can
  417. * be also used by the function exit macros below.
  418. * Note: (const char) is used to be compatible with the debug interfaces
  419. * and macros such as __FUNCTION__.
  420. */
  421. #define ACPI_FUNCTION_NAME(name) const char *_acpi_function_name = #name;
  422. #else
  423. /* Compiler supports __FUNCTION__ (or equivalent) -- Ignore this macro */
  424. #define ACPI_FUNCTION_NAME(name)
  425. #endif
  426. #define ACPI_FUNCTION_TRACE(a) ACPI_FUNCTION_NAME(a) \
  427. acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
  428. #define ACPI_FUNCTION_TRACE_PTR(a,b) ACPI_FUNCTION_NAME(a) \
  429. acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS,(void *)b)
  430. #define ACPI_FUNCTION_TRACE_U32(a,b) ACPI_FUNCTION_NAME(a) \
  431. acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS,(u32)b)
  432. #define ACPI_FUNCTION_TRACE_STR(a,b) ACPI_FUNCTION_NAME(a) \
  433. acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS,(char *)b)
  434. #define ACPI_FUNCTION_ENTRY() acpi_ut_track_stack_ptr()
  435. /*
  436. * Function exit tracing.
  437. * WARNING: These macros include a return statement. This is usually considered
  438. * bad form, but having a separate exit macro is very ugly and difficult to maintain.
  439. * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
  440. * so that "_AcpiFunctionName" is defined.
  441. *
  442. * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
  443. * about these constructs.
  444. */
  445. #ifdef ACPI_USE_DO_WHILE_0
  446. #define ACPI_DO_WHILE0(a) do a while(0)
  447. #else
  448. #define ACPI_DO_WHILE0(a) a
  449. #endif
  450. #define return_VOID ACPI_DO_WHILE0 ({ \
  451. acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
  452. return;})
  453. /*
  454. * There are two versions of most of the return macros. The default version is
  455. * safer, since it avoids side-effects by guaranteeing that the argument will
  456. * not be evaluated twice.
  457. *
  458. * A less-safe version of the macros is provided for optional use if the
  459. * compiler uses excessive CPU stack (for example, this may happen in the
  460. * debug case if code optimzation is disabled.)
  461. */
  462. #ifndef ACPI_SIMPLE_RETURN_MACROS
  463. #define return_ACPI_STATUS(s) ACPI_DO_WHILE0 ({ \
  464. register acpi_status _s = (s); \
  465. acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, _s); \
  466. return (_s); })
  467. #define return_PTR(s) ACPI_DO_WHILE0 ({ \
  468. register void *_s = (void *) (s); \
  469. acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \
  470. return (_s); })
  471. #define return_VALUE(s) ACPI_DO_WHILE0 ({ \
  472. register acpi_integer _s = (s); \
  473. acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \
  474. return (_s); })
  475. #define return_UINT8(s) ACPI_DO_WHILE0 ({ \
  476. register u8 _s = (u8) (s); \
  477. acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \
  478. return (_s); })
  479. #define return_UINT32(s) ACPI_DO_WHILE0 ({ \
  480. register u32 _s = (u32) (s); \
  481. acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) _s); \
  482. return (_s); })
  483. #else /* Use original less-safe macros */
  484. #define return_ACPI_STATUS(s) ACPI_DO_WHILE0 ({ \
  485. acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, (s)); \
  486. return((s)); })
  487. #define return_PTR(s) ACPI_DO_WHILE0 ({ \
  488. acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \
  489. return((s)); })
  490. #define return_VALUE(s) ACPI_DO_WHILE0 ({ \
  491. acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (acpi_integer) (s)); \
  492. return((s)); })
  493. #define return_UINT8(s) return_VALUE(s)
  494. #define return_UINT32(s) return_VALUE(s)
  495. #endif /* ACPI_SIMPLE_RETURN_MACROS */
  496. /* Conditional execution */
  497. #define ACPI_DEBUG_EXEC(a) a
  498. #define ACPI_NORMAL_EXEC(a)
  499. #define ACPI_DEBUG_DEFINE(a) a;
  500. #define ACPI_DEBUG_ONLY_MEMBERS(a) a;
  501. #define _VERBOSE_STRUCTURES
  502. /* Stack and buffer dumping */
  503. #define ACPI_DUMP_STACK_ENTRY(a) acpi_ex_dump_operand((a),0)
  504. #define ACPI_DUMP_OPERANDS(a,b,c,d,e) acpi_ex_dump_operands(a,b,c,d,e,_acpi_module_name,__LINE__)
  505. #define ACPI_DUMP_ENTRY(a,b) acpi_ns_dump_entry (a,b)
  506. #define ACPI_DUMP_PATHNAME(a,b,c,d) acpi_ns_dump_pathname(a,b,c,d)
  507. #define ACPI_DUMP_RESOURCE_LIST(a) acpi_rs_dump_resource_list(a)
  508. #define ACPI_DUMP_BUFFER(a,b) acpi_ut_dump_buffer((u8 *)a,b,DB_BYTE_DISPLAY,_COMPONENT)
  509. /*
  510. * Master debug print macros
  511. * Print iff:
  512. * 1) Debug print for the current component is enabled
  513. * 2) Debug error level or trace level for the print statement is enabled
  514. */
  515. #define ACPI_DEBUG_PRINT(plist) acpi_ut_debug_print plist
  516. #define ACPI_DEBUG_PRINT_RAW(plist) acpi_ut_debug_print_raw plist
  517. #else
  518. /*
  519. * This is the non-debug case -- make everything go away,
  520. * leaving no executable debug code!
  521. */
  522. #define ACPI_DEBUG_EXEC(a)
  523. #define ACPI_NORMAL_EXEC(a) a;
  524. #define ACPI_DEBUG_DEFINE(a)
  525. #define ACPI_DEBUG_ONLY_MEMBERS(a)
  526. #define ACPI_FUNCTION_NAME(a)
  527. #define ACPI_FUNCTION_TRACE(a)
  528. #define ACPI_FUNCTION_TRACE_PTR(a,b)
  529. #define ACPI_FUNCTION_TRACE_U32(a,b)
  530. #define ACPI_FUNCTION_TRACE_STR(a,b)
  531. #define ACPI_FUNCTION_EXIT
  532. #define ACPI_FUNCTION_STATUS_EXIT(s)
  533. #define ACPI_FUNCTION_VALUE_EXIT(s)
  534. #define ACPI_FUNCTION_ENTRY()
  535. #define ACPI_DUMP_STACK_ENTRY(a)
  536. #define ACPI_DUMP_OPERANDS(a,b,c,d,e)
  537. #define ACPI_DUMP_ENTRY(a,b)
  538. #define ACPI_DUMP_TABLES(a,b)
  539. #define ACPI_DUMP_PATHNAME(a,b,c,d)
  540. #define ACPI_DUMP_RESOURCE_LIST(a)
  541. #define ACPI_DUMP_BUFFER(a,b)
  542. #define ACPI_DEBUG_PRINT(pl)
  543. #define ACPI_DEBUG_PRINT_RAW(pl)
  544. #define return_VOID return
  545. #define return_ACPI_STATUS(s) return(s)
  546. #define return_VALUE(s) return(s)
  547. #define return_UINT8(s) return(s)
  548. #define return_UINT32(s) return(s)
  549. #define return_PTR(s) return(s)
  550. #endif
  551. /*
  552. * Some code only gets executed when the debugger is built in.
  553. * Note that this is entirely independent of whether the
  554. * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
  555. */
  556. #ifdef ACPI_DEBUGGER
  557. #define ACPI_DEBUGGER_EXEC(a) a
  558. #else
  559. #define ACPI_DEBUGGER_EXEC(a)
  560. #endif
  561. /*
  562. * For 16-bit code, we want to shrink some things even though
  563. * we are using ACPI_DEBUG_OUTPUT to get the debug output
  564. */
  565. #if ACPI_MACHINE_WIDTH == 16
  566. #undef ACPI_DEBUG_ONLY_MEMBERS
  567. #undef _VERBOSE_STRUCTURES
  568. #define ACPI_DEBUG_ONLY_MEMBERS(a)
  569. #endif
  570. #ifdef ACPI_DEBUG_OUTPUT
  571. /*
  572. * 1) Set name to blanks
  573. * 2) Copy the object name
  574. */
  575. #define ACPI_ADD_OBJECT_NAME(a,b) ACPI_MEMSET (a->common.name, ' ', sizeof (a->common.name));\
  576. ACPI_STRNCPY (a->common.name, acpi_gbl_ns_type_names[b], sizeof (a->common.name))
  577. #else
  578. #define ACPI_ADD_OBJECT_NAME(a,b)
  579. #endif
  580. /*
  581. * Memory allocation tracking (DEBUG ONLY)
  582. */
  583. #ifndef ACPI_DBG_TRACK_ALLOCATIONS
  584. /* Memory allocation */
  585. #ifndef ACPI_ALLOCATE
  586. #define ACPI_ALLOCATE(a) acpi_ut_allocate((acpi_size)(a),_COMPONENT,_acpi_module_name,__LINE__)
  587. #endif
  588. #ifndef ACPI_ALLOCATE_ZEROED
  589. #define ACPI_ALLOCATE_ZEROED(a) acpi_ut_allocate_zeroed((acpi_size)(a), _COMPONENT,_acpi_module_name,__LINE__)
  590. #endif
  591. #ifndef ACPI_FREE
  592. #define ACPI_FREE(a) acpio_os_free(a)
  593. #endif
  594. #define ACPI_MEM_TRACKING(a)
  595. #else
  596. /* Memory allocation */
  597. #define ACPI_ALLOCATE(a) acpi_ut_allocate_and_track((acpi_size)(a),_COMPONENT,_acpi_module_name,__LINE__)
  598. #define ACPI_ALLOCATE_ZEROED(a) acpi_ut_allocate_zeroed_and_track((acpi_size)(a), _COMPONENT,_acpi_module_name,__LINE__)
  599. #define ACPI_FREE(a) acpi_ut_free_and_track(a,_COMPONENT,_acpi_module_name,__LINE__)
  600. #define ACPI_MEM_TRACKING(a) a
  601. #endif /* ACPI_DBG_TRACK_ALLOCATIONS */
  602. #endif /* ACMACROS_H */