[mirror_edk2.git] / ArmPkg / Library / BaseMemoryLibStm / MemLibInternals.h

/** @file\r
  Declaration of internal functions for Base Memory Library.\r
\r
  The following BaseMemoryLib instances contain the same copy of this file:\r
    BaseMemoryLib\r
    BaseMemoryLibMmx\r
    BaseMemoryLibSse2\r
    BaseMemoryLibRepStr\r
    BaseMemoryLibOptDxe\r
    BaseMemoryLibOptPei\r
\r
  Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __MEM_LIB_INTERNALS__\r
#define __MEM_LIB_INTERNALS__\r
\r
#include <Base.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
\r
/**\r
  Copy Length bytes from Source to Destination.\r
\r
  @param  DestinationBuffer Target of copy\r
  @param  SourceBuffer      Place to copy from\r
  @param  Length            Number of bytes to copy\r
\r
  @return Destination\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemCopyMem (\r
  OUT     VOID                      *DestinationBuffer,\r
  IN      CONST VOID                *SourceBuffer,\r
  IN      UINTN                     Length\r
  );\r
\r
/**\r
  Set Buffer to Value for Size bytes.\r
\r
  @param  Buffer   Memory to set.\r
  @param  Length   Number of bytes to set\r
  @param  Value    Value of the set operation.\r
\r
  @return Buffer\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemSetMem (\r
  OUT     VOID                      *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT8                     Value\r
  );\r
\r
/**\r
  Fills a target buffer with a 16-bit value, and returns the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to fill.\r
  @param  Length  Count of 16-bit value to fill.\r
  @param  Value   Value with which to fill Length bytes of Buffer.\r
\r
  @return Buffer\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemSetMem16 (\r
  OUT     VOID                      *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT16                    Value\r
  );\r
\r
/**\r
  Fills a target buffer with a 32-bit value, and returns the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to fill.\r
  @param  Length  Count of 32-bit value to fill.\r
  @param  Value   Value with which to fill Length bytes of Buffer.\r
\r
  @return Buffer\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemSetMem32 (\r
  OUT     VOID                      *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT32                    Value\r
  );\r
\r
/**\r
  Fills a target buffer with a 64-bit value, and returns the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to fill.\r
  @param  Length  Count of 64-bit value to fill.\r
  @param  Value   Value with which to fill Length bytes of Buffer.\r
\r
  @return Buffer\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemSetMem64 (\r
  OUT     VOID                      *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT64                    Value\r
  );\r
\r
/**\r
  Set Buffer to 0 for Size bytes.\r
\r
  @param  Buffer Memory to set.\r
  @param  Length Number of bytes to set\r
\r
  @return Buffer\r
\r
**/\r
VOID *\r
EFIAPI\r
InternalMemZeroMem (\r
  OUT     VOID                      *Buffer,\r
  IN      UINTN                     Length\r
  );\r
\r
/**\r
  Compares two memory buffers of a given length.\r
\r
  @param  DestinationBuffer First memory buffer\r
  @param  SourceBuffer      Second memory buffer\r
  @param  Length            Length of DestinationBuffer and SourceBuffer memory\r
                            regions to compare. Must be non-zero.\r
\r
  @return 0                 All Length bytes of the two buffers are identical.\r
  @retval Non-zero          The first mismatched byte in SourceBuffer subtracted from the first\r
                            mismatched byte in DestinationBuffer.\r
\r
**/\r
INTN\r
EFIAPI\r
InternalMemCompareMem (\r
  IN      CONST VOID                *DestinationBuffer,\r
  IN      CONST VOID                *SourceBuffer,\r
  IN      UINTN                     Length\r
  );\r
\r
/**\r
  Scans a target buffer for an 8-bit value, and returns a pointer to the\r
  matching 8-bit value in the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to scan.\r
  @param  Length  Count of 8-bit value to scan. Must be non-zero.\r
  @param  Value   Value to search for in the target buffer.\r
\r
  @return Pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
EFIAPI\r
InternalMemScanMem8 (\r
  IN      CONST VOID                *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT8                     Value\r
  );\r
\r
/**\r
  Scans a target buffer for a 16-bit value, and returns a pointer to the\r
  matching 16-bit value in the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to scan.\r
  @param  Length  Count of 16-bit value to scan. Must be non-zero.\r
  @param  Value   Value to search for in the target buffer.\r
\r
  @return Pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
EFIAPI\r
InternalMemScanMem16 (\r
  IN      CONST VOID                *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT16                    Value\r
  );\r
\r
/**\r
  Scans a target buffer for a 32-bit value, and returns a pointer to the\r
  matching 32-bit value in the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to scan.\r
  @param  Length  Count of 32-bit value to scan. Must be non-zero.\r
  @param  Value   Value to search for in the target buffer.\r
\r
  @return Pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
EFIAPI\r
InternalMemScanMem32 (\r
  IN      CONST VOID                *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT32                    Value\r
  );\r
\r
/**\r
  Scans a target buffer for a 64-bit value, and returns a pointer to the\r
  matching 64-bit value in the target buffer.\r
\r
  @param  Buffer  Pointer to the target buffer to scan.\r
  @param  Length  Count of 64-bit value to scan. Must be non-zero.\r
  @param  Value   Value to search for in the target buffer.\r
\r
  @return Pointer to the first occurrence or NULL if not found.\r
\r
**/\r
CONST VOID *\r
EFIAPI\r
InternalMemScanMem64 (\r
  IN      CONST VOID                *Buffer,\r
  IN      UINTN                     Length,\r
  IN      UINT64                    Value\r
  );\r
\r
/**\r
  Checks whether the contents of a buffer are all zeros.\r
\r
  @param  Buffer  The pointer to the buffer to be checked.\r
  @param  Length  The size of the buffer (in bytes) to be checked.\r
\r
  @retval TRUE    Contents of the buffer are all zeros.\r
  @retval FALSE   Contents of the buffer are not all zeros.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
InternalMemIsZeroBuffer (\r
  IN CONST VOID  *Buffer,\r
  IN UINTN       Length\r
  );\r
\r
#endif\r
Commit	Line	Data
d39eb83c	1	/** @file\r
	2	Declaration of internal functions for Base Memory Library.\r
	3	\r
	4	The following BaseMemoryLib instances contain the same copy of this file:\r
	5	BaseMemoryLib\r
	6	BaseMemoryLibMmx\r
	7	BaseMemoryLibSse2\r
	8	BaseMemoryLibRepStr\r
	9	BaseMemoryLibOptDxe\r
	10	BaseMemoryLibOptPei\r
	11	\r
d6ebcab7 HT	12	Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r
d6ebcab7 HT	13	This program and the accompanying materials\r
d39eb83c	14	are licensed and made available under the terms and conditions of the BSD License\r
	15	which accompanies this distribution. The full text of the license may be found at\r
	16	http://opensource.org/licenses/bsd-license.php\r
	17	\r
	18	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	19	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	20	\r
	21	**/\r
	22	\r
	23	#ifndef __MEM_LIB_INTERNALS__\r
	24	#define __MEM_LIB_INTERNALS__\r
	25	\r
	26	#include <Base.h>\r
	27	#include <Library/BaseMemoryLib.h>\r
	28	#include <Library/BaseLib.h>\r
	29	#include <Library/DebugLib.h>\r
	30	\r
	31	/**\r
	32	Copy Length bytes from Source to Destination.\r
	33	\r
	34	@param DestinationBuffer Target of copy\r
	35	@param SourceBuffer Place to copy from\r
	36	@param Length Number of bytes to copy\r
	37	\r
	38	@return Destination\r
	39	\r
	40	**/\r
	41	VOID *\r
	42	EFIAPI\r
	43	InternalMemCopyMem (\r
	44	OUT VOID *DestinationBuffer,\r
	45	IN CONST VOID *SourceBuffer,\r
	46	IN UINTN Length\r
	47	);\r
	48	\r
	49	/**\r
	50	Set Buffer to Value for Size bytes.\r
	51	\r
	52	@param Buffer Memory to set.\r
	53	@param Length Number of bytes to set\r
	54	@param Value Value of the set operation.\r
	55	\r
	56	@return Buffer\r
	57	\r
	58	**/\r
	59	VOID *\r
	60	EFIAPI\r
	61	InternalMemSetMem (\r
	62	OUT VOID *Buffer,\r
	63	IN UINTN Length,\r
	64	IN UINT8 Value\r
	65	);\r
	66	\r
	67	/**\r
	68	Fills a target buffer with a 16-bit value, and returns the target buffer.\r
	69	\r
	70	@param Buffer Pointer to the target buffer to fill.\r
	71	@param Length Count of 16-bit value to fill.\r
	72	@param Value Value with which to fill Length bytes of Buffer.\r
	73	\r
	74	@return Buffer\r
	75	\r
	76	**/\r
	77	VOID *\r
78	EFIAPI\r
79	InternalMemSetMem16 (\r
80	OUT VOID *Buffer,\r
81	IN UINTN Length,\r
82	IN UINT16 Value\r
83	);\r
84	\r
85	/**\r
86	Fills a target buffer with a 32-bit value, and returns the target buffer.\r
87	\r
88	@param Buffer Pointer to the target buffer to fill.\r
89	@param Length Count of 32-bit value to fill.\r
90	@param Value Value with which to fill Length bytes of Buffer.\r
91	\r
92	@return Buffer\r
93	\r
94	**/\r
95	VOID *\r
96	EFIAPI\r
97	InternalMemSetMem32 (\r
98	OUT VOID *Buffer,\r
99	IN UINTN Length,\r
100	IN UINT32 Value\r
101	);\r
102	\r
103	/**\r
104	Fills a target buffer with a 64-bit value, and returns the target buffer.\r
105	\r
106	@param Buffer Pointer to the target buffer to fill.\r
107	@param Length Count of 64-bit value to fill.\r
108	@param Value Value with which to fill Length bytes of Buffer.\r
109	\r
110	@return Buffer\r
111	\r
112	**/\r
113	VOID *\r
114	EFIAPI\r
115	InternalMemSetMem64 (\r
116	OUT VOID *Buffer,\r
117	IN UINTN Length,\r
118	IN UINT64 Value\r
119	);\r
120	\r
121	/**\r
122	Set Buffer to 0 for Size bytes.\r
123	\r
124	@param Buffer Memory to set.\r
125	@param Length Number of bytes to set\r
126	\r
127	@return Buffer\r
128	\r
129	**/\r
130	VOID *\r
131	EFIAPI\r
132	InternalMemZeroMem (\r
133	OUT VOID *Buffer,\r
134	IN UINTN Length\r
135	);\r
136	\r
137	/**\r
138	Compares two memory buffers of a given length.\r
139	\r
140	@param DestinationBuffer First memory buffer\r
141	@param SourceBuffer Second memory buffer\r
142	@param Length Length of DestinationBuffer and SourceBuffer memory\r
143	regions to compare. Must be non-zero.\r
144	\r
145	@return 0 All Length bytes of the two buffers are identical.\r
146	@retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first\r
147	mismatched byte in DestinationBuffer.\r
148	\r
149	**/\r
150	INTN\r
151	EFIAPI\r
152	InternalMemCompareMem (\r
153	IN CONST VOID *DestinationBuffer,\r
154	IN CONST VOID *SourceBuffer,\r
155	IN UINTN Length\r
156	);\r
157	\r
158	/**\r
159	Scans a target buffer for an 8-bit value, and returns a pointer to the\r
160	matching 8-bit value in the target buffer.\r
161	\r
162	@param Buffer Pointer to the target buffer to scan.\r
163	@param Length Count of 8-bit value to scan. Must be non-zero.\r
164	@param Value Value to search for in the target buffer.\r
165	\r
166	@return Pointer to the first occurrence or NULL if not found.\r
167	\r
168	**/\r
169	CONST VOID *\r
170	EFIAPI\r
171	InternalMemScanMem8 (\r
172	IN CONST VOID *Buffer,\r
173	IN UINTN Length,\r
174	IN UINT8 Value\r
175	);\r
176	\r
177	/**\r
178	Scans a target buffer for a 16-bit value, and returns a pointer to the\r
179	matching 16-bit value in the target buffer.\r
180	\r
181	@param Buffer Pointer to the target buffer to scan.\r
182	@param Length Count of 16-bit value to scan. Must be non-zero.\r
183	@param Value Value to search for in the target buffer.\r
184	\r
185	@return Pointer to the first occurrence or NULL if not found.\r
186	\r
187	**/\r
188	CONST VOID *\r
189	EFIAPI\r
190	InternalMemScanMem16 (\r
191	IN CONST VOID *Buffer,\r
192	IN UINTN Length,\r
193	IN UINT16 Value\r
194	);\r
195	\r
196	/**\r
197	Scans a target buffer for a 32-bit value, and returns a pointer to the\r
198	matching 32-bit value in the target buffer.\r
199	\r
200	@param Buffer Pointer to the target buffer to scan.\r
201	@param Length Count of 32-bit value to scan. Must be non-zero.\r
202	@param Value Value to search for in the target buffer.\r
203	\r
204	@return Pointer to the first occurrence or NULL if not found.\r
205	\r
206	**/\r
207	CONST VOID *\r
208	EFIAPI\r
209	InternalMemScanMem32 (\r
210	IN CONST VOID *Buffer,\r
211	IN UINTN Length,\r
212	IN UINT32 Value\r
213	);\r
214	\r
215	/**\r
216	Scans a target buffer for a 64-bit value, and returns a pointer to the\r
217	matching 64-bit value in the target buffer.\r
218	\r
219	@param Buffer Pointer to the target buffer to scan.\r
220	@param Length Count of 64-bit value to scan. Must be non-zero.\r
221	@param Value Value to search for in the target buffer.\r
222	\r
223	@return Pointer to the first occurrence or NULL if not found.\r
224	\r
225	**/\r
226	CONST VOID *\r
227	EFIAPI\r
228	InternalMemScanMem64 (\r
229	IN CONST VOID *Buffer,\r
230	IN UINTN Length,\r
231	IN UINT64 Value\r
232	);\r
233	\r
0b09c212 AB	234	/**\r
	235	Checks whether the contents of a buffer are all zeros.\r
	236	\r
	237	@param Buffer The pointer to the buffer to be checked.\r
	238	@param Length The size of the buffer (in bytes) to be checked.\r
	239	\r
	240	@retval TRUE Contents of the buffer are all zeros.\r
	241	@retval FALSE Contents of the buffer are not all zeros.\r
	242	\r
	243	**/\r
	244	BOOLEAN\r
	245	EFIAPI\r
	246	InternalMemIsZeroBuffer (\r
	247	IN CONST VOID *Buffer,\r
	248	IN UINTN Length\r
	249	);\r
	250	\r
d39eb83c	251	#endif\r