Loading drivers/acpi/acpica/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -162,5 +162,5 @@ acpi-y += \ utxferror.o \ utxfmutex.o acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o utclib.o acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o drivers/acpi/acpica/utclib.cdeleted 100644 → 0 +0 −749 Original line number Diff line number Diff line /****************************************************************************** * * Module Name: cmclib - Local implementation of C library functions * *****************************************************************************/ /* * Copyright (C) 2000 - 2012, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #include <acpi/acpi.h> #include "accommon.h" /* * These implementations of standard C Library routines can optionally be * used if a C library is not available. In general, they are less efficient * than an inline or assembly implementation */ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("cmclib") #ifndef ACPI_USE_SYSTEM_CLIBRARY #define NEGATIVE 1 #define POSITIVE 0 /******************************************************************************* * * FUNCTION: acpi_ut_memcmp (memcmp) * * PARAMETERS: buffer1 - First Buffer * buffer2 - Second Buffer * count - Maximum # of bytes to compare * * RETURN: Index where Buffers mismatched, or 0 if Buffers matched * * DESCRIPTION: Compare two Buffers, with a maximum length * ******************************************************************************/ int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count) { return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*buffer1 - (unsigned char)*buffer2)); } /******************************************************************************* * * FUNCTION: acpi_ut_memcpy (memcpy) * * PARAMETERS: dest - Target of the copy * src - Source buffer to copy * count - Number of bytes to copy * * RETURN: Dest * * DESCRIPTION: Copy arbitrary bytes of memory * ******************************************************************************/ void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count) { char *new = (char *)dest; char *old = (char *)src; while (count) { *new = *old; new++; old++; count--; } return (dest); } /******************************************************************************* * * FUNCTION: acpi_ut_memset (memset) * * PARAMETERS: dest - Buffer to set * value - Value to set each byte of memory * count - Number of bytes to set * * RETURN: Dest * * DESCRIPTION: Initialize a buffer to a known value. * ******************************************************************************/ void *acpi_ut_memset(void *dest, u8 value, acpi_size count) { char *new = (char *)dest; while (count) { *new = (char)value; new++; count--; } return (dest); } /******************************************************************************* * * FUNCTION: acpi_ut_strlen (strlen) * * PARAMETERS: string - Null terminated string * * RETURN: Length * * DESCRIPTION: Returns the length of the input string * ******************************************************************************/ acpi_size acpi_ut_strlen(const char *string) { u32 length = 0; /* Count the string until a null is encountered */ while (*string) { length++; string++; } return (length); } /******************************************************************************* * * FUNCTION: acpi_ut_strcpy (strcpy) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * * RETURN: dst_string * * DESCRIPTION: Copy a null terminated string * ******************************************************************************/ char *acpi_ut_strcpy(char *dst_string, const char *src_string) { char *string = dst_string; /* Move bytes brute force */ while (*src_string) { *string = *src_string; string++; src_string++; } /* Null terminate */ *string = 0; return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strncpy (strncpy) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * count - Maximum # of bytes to copy * * RETURN: dst_string * * DESCRIPTION: Copy a null terminated string, with a maximum length * ******************************************************************************/ char *acpi_ut_strncpy(char *dst_string, const char *src_string, acpi_size count) { char *string = dst_string; /* Copy the string */ for (string = dst_string; count && (count--, (*string++ = *src_string++));) {; } /* Pad with nulls if necessary */ while (count--) { *string = 0; string++; } /* Return original pointer */ return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strcmp (strcmp) * * PARAMETERS: string1 - First string * string2 - Second string * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings * ******************************************************************************/ int acpi_ut_strcmp(const char *string1, const char *string2) { for (; (*string1 == *string2); string2++) { if (!*string1++) { return (0); } } return ((unsigned char)*string1 - (unsigned char)*string2); } #ifdef ACPI_FUTURE_IMPLEMENTATION /* Not used at this time */ /******************************************************************************* * * FUNCTION: acpi_ut_strchr (strchr) * * PARAMETERS: string - Search string * ch - character to search for * * RETURN: Ptr to char or NULL if not found * * DESCRIPTION: Search a string for a character * ******************************************************************************/ char *acpi_ut_strchr(const char *string, int ch) { for (; (*string); string++) { if ((*string) == (char)ch) { return ((char *)string); } } return (NULL); } #endif /******************************************************************************* * * FUNCTION: acpi_ut_strncmp (strncmp) * * PARAMETERS: string1 - First string * string2 - Second string * count - Maximum # of bytes to compare * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings, with a maximum length * ******************************************************************************/ int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count) { for (; count-- && (*string1 == *string2); string2++) { if (!*string1++) { return (0); } } return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*string1 - (unsigned char)*string2)); } /******************************************************************************* * * FUNCTION: acpi_ut_strcat (Strcat) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * * RETURN: dst_string * * DESCRIPTION: Append a null terminated string to a null terminated string * ******************************************************************************/ char *acpi_ut_strcat(char *dst_string, const char *src_string) { char *string; /* Find end of the destination string */ for (string = dst_string; *string++;) {; } /* Concatenate the string */ for (--string; (*string++ = *src_string++);) {; } return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strncat (strncat) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * count - Maximum # of bytes to copy * * RETURN: dst_string * * DESCRIPTION: Append a null terminated string to a null terminated string, * with a maximum count. * ******************************************************************************/ char *acpi_ut_strncat(char *dst_string, const char *src_string, acpi_size count) { char *string; if (count) { /* Find end of the destination string */ for (string = dst_string; *string++;) {; } /* Concatenate the string */ for (--string; (*string++ = *src_string++) && --count;) {; } /* Null terminate if necessary */ if (!count) { *string = 0; } } return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strstr (strstr) * * PARAMETERS: string1 - Target string * string2 - Substring to search for * * RETURN: Where substring match starts, Null if no match found * * DESCRIPTION: Checks if String2 occurs in String1. This is not really a * full implementation of strstr, only sufficient for command * matching * ******************************************************************************/ char *acpi_ut_strstr(char *string1, char *string2) { char *string; if (acpi_ut_strlen(string2) > acpi_ut_strlen(string1)) { return (NULL); } /* Walk entire string, comparing the letters */ for (string = string1; *string2;) { if (*string2 != *string) { return (NULL); } string2++; string++; } return (string1); } /******************************************************************************* * * FUNCTION: acpi_ut_strtoul (strtoul) * * PARAMETERS: string - Null terminated string * terminater - Where a pointer to the terminating byte is * returned * base - Radix of the string * * RETURN: Converted value * * DESCRIPTION: Convert a string into a 32-bit unsigned value. * Note: use acpi_ut_strtoul64 for 64-bit integers. * ******************************************************************************/ u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base) { u32 converted = 0; u32 index; u32 sign; const char *string_start; u32 return_value = 0; acpi_status status = AE_OK; /* * Save the value of the pointer to the buffer's first * character, save the current errno value, and then * skip over any white space in the buffer: */ string_start = string; while (ACPI_IS_SPACE(*string) || *string == '\t') { ++string; } /* * The buffer may contain an optional plus or minus sign. * If it does, then skip over it but remember what is was: */ if (*string == '-') { sign = NEGATIVE; ++string; } else if (*string == '+') { ++string; sign = POSITIVE; } else { sign = POSITIVE; } /* * If the input parameter Base is zero, then we need to * determine if it is octal, decimal, or hexadecimal: */ if (base == 0) { if (*string == '0') { if (acpi_ut_to_lower(*(++string)) == 'x') { base = 16; ++string; } else { base = 8; } } else { base = 10; } } else if (base < 2 || base > 36) { /* * The specified Base parameter is not in the domain of * this function: */ goto done; } /* * For octal and hexadecimal bases, skip over the leading * 0 or 0x, if they are present. */ if (base == 8 && *string == '0') { string++; } if (base == 16 && *string == '0' && acpi_ut_to_lower(*(++string)) == 'x') { string++; } /* * Main loop: convert the string to an unsigned long: */ while (*string) { if (ACPI_IS_DIGIT(*string)) { index = (u32)((u8)*string - '0'); } else { index = (u32)acpi_ut_to_upper(*string); if (ACPI_IS_UPPER(index)) { index = index - 'A' + 10; } else { goto done; } } if (index >= base) { goto done; } /* * Check to see if value is out of range: */ if (return_value > ((ACPI_UINT32_MAX - (u32)index) / (u32)base)) { status = AE_ERROR; return_value = 0; /* reset */ } else { return_value *= base; return_value += index; converted = 1; } ++string; } done: /* * If appropriate, update the caller's pointer to the next * unconverted character in the buffer. */ if (terminator) { if (converted == 0 && return_value == 0 && string != NULL) { *terminator = (char *)string_start; } else { *terminator = (char *)string; } } if (status == AE_ERROR) { return_value = ACPI_UINT32_MAX; } /* * If a minus sign was present, then "the conversion is negated": */ if (sign == NEGATIVE) { return_value = (ACPI_UINT32_MAX - return_value) + 1; } return (return_value); } /******************************************************************************* * * FUNCTION: acpi_ut_to_upper (TOUPPER) * * PARAMETERS: c - Character to convert * * RETURN: Converted character as an int * * DESCRIPTION: Convert character to uppercase * ******************************************************************************/ int acpi_ut_to_upper(int c) { return (ACPI_IS_LOWER(c) ? ((c) - 0x20) : (c)); } /******************************************************************************* * * FUNCTION: acpi_ut_to_lower (TOLOWER) * * PARAMETERS: c - Character to convert * * RETURN: Converted character as an int * * DESCRIPTION: Convert character to lowercase * ******************************************************************************/ int acpi_ut_to_lower(int c) { return (ACPI_IS_UPPER(c) ? ((c) + 0x20) : (c)); } /******************************************************************************* * * FUNCTION: is* functions * * DESCRIPTION: is* functions use the ctype table below * ******************************************************************************/ const u8 _acpi_ctype[257] = { _ACPI_CN, /* 0x00 0 NUL */ _ACPI_CN, /* 0x01 1 SOH */ _ACPI_CN, /* 0x02 2 STX */ _ACPI_CN, /* 0x03 3 ETX */ _ACPI_CN, /* 0x04 4 EOT */ _ACPI_CN, /* 0x05 5 ENQ */ _ACPI_CN, /* 0x06 6 ACK */ _ACPI_CN, /* 0x07 7 BEL */ _ACPI_CN, /* 0x08 8 BS */ _ACPI_CN | _ACPI_SP, /* 0x09 9 TAB */ _ACPI_CN | _ACPI_SP, /* 0x0A 10 LF */ _ACPI_CN | _ACPI_SP, /* 0x0B 11 VT */ _ACPI_CN | _ACPI_SP, /* 0x0C 12 FF */ _ACPI_CN | _ACPI_SP, /* 0x0D 13 CR */ _ACPI_CN, /* 0x0E 14 SO */ _ACPI_CN, /* 0x0F 15 SI */ _ACPI_CN, /* 0x10 16 DLE */ _ACPI_CN, /* 0x11 17 DC1 */ _ACPI_CN, /* 0x12 18 DC2 */ _ACPI_CN, /* 0x13 19 DC3 */ _ACPI_CN, /* 0x14 20 DC4 */ _ACPI_CN, /* 0x15 21 NAK */ _ACPI_CN, /* 0x16 22 SYN */ _ACPI_CN, /* 0x17 23 ETB */ _ACPI_CN, /* 0x18 24 CAN */ _ACPI_CN, /* 0x19 25 EM */ _ACPI_CN, /* 0x1A 26 SUB */ _ACPI_CN, /* 0x1B 27 ESC */ _ACPI_CN, /* 0x1C 28 FS */ _ACPI_CN, /* 0x1D 29 GS */ _ACPI_CN, /* 0x1E 30 RS */ _ACPI_CN, /* 0x1F 31 US */ _ACPI_XS | _ACPI_SP, /* 0x20 32 ' ' */ _ACPI_PU, /* 0x21 33 '!' */ _ACPI_PU, /* 0x22 34 '"' */ _ACPI_PU, /* 0x23 35 '#' */ _ACPI_PU, /* 0x24 36 '$' */ _ACPI_PU, /* 0x25 37 '%' */ _ACPI_PU, /* 0x26 38 '&' */ _ACPI_PU, /* 0x27 39 ''' */ _ACPI_PU, /* 0x28 40 '(' */ _ACPI_PU, /* 0x29 41 ')' */ _ACPI_PU, /* 0x2A 42 '*' */ _ACPI_PU, /* 0x2B 43 '+' */ _ACPI_PU, /* 0x2C 44 ',' */ _ACPI_PU, /* 0x2D 45 '-' */ _ACPI_PU, /* 0x2E 46 '.' */ _ACPI_PU, /* 0x2F 47 '/' */ _ACPI_XD | _ACPI_DI, /* 0x30 48 '0' */ _ACPI_XD | _ACPI_DI, /* 0x31 49 '1' */ _ACPI_XD | _ACPI_DI, /* 0x32 50 '2' */ _ACPI_XD | _ACPI_DI, /* 0x33 51 '3' */ _ACPI_XD | _ACPI_DI, /* 0x34 52 '4' */ _ACPI_XD | _ACPI_DI, /* 0x35 53 '5' */ _ACPI_XD | _ACPI_DI, /* 0x36 54 '6' */ _ACPI_XD | _ACPI_DI, /* 0x37 55 '7' */ _ACPI_XD | _ACPI_DI, /* 0x38 56 '8' */ _ACPI_XD | _ACPI_DI, /* 0x39 57 '9' */ _ACPI_PU, /* 0x3A 58 ':' */ _ACPI_PU, /* 0x3B 59 ';' */ _ACPI_PU, /* 0x3C 60 '<' */ _ACPI_PU, /* 0x3D 61 '=' */ _ACPI_PU, /* 0x3E 62 '>' */ _ACPI_PU, /* 0x3F 63 '?' */ _ACPI_PU, /* 0x40 64 '@' */ _ACPI_XD | _ACPI_UP, /* 0x41 65 'A' */ _ACPI_XD | _ACPI_UP, /* 0x42 66 'B' */ _ACPI_XD | _ACPI_UP, /* 0x43 67 'C' */ _ACPI_XD | _ACPI_UP, /* 0x44 68 'D' */ _ACPI_XD | _ACPI_UP, /* 0x45 69 'E' */ _ACPI_XD | _ACPI_UP, /* 0x46 70 'F' */ _ACPI_UP, /* 0x47 71 'G' */ _ACPI_UP, /* 0x48 72 'H' */ _ACPI_UP, /* 0x49 73 'I' */ _ACPI_UP, /* 0x4A 74 'J' */ _ACPI_UP, /* 0x4B 75 'K' */ _ACPI_UP, /* 0x4C 76 'L' */ _ACPI_UP, /* 0x4D 77 'M' */ _ACPI_UP, /* 0x4E 78 'N' */ _ACPI_UP, /* 0x4F 79 'O' */ _ACPI_UP, /* 0x50 80 'P' */ _ACPI_UP, /* 0x51 81 'Q' */ _ACPI_UP, /* 0x52 82 'R' */ _ACPI_UP, /* 0x53 83 'S' */ _ACPI_UP, /* 0x54 84 'T' */ _ACPI_UP, /* 0x55 85 'U' */ _ACPI_UP, /* 0x56 86 'V' */ _ACPI_UP, /* 0x57 87 'W' */ _ACPI_UP, /* 0x58 88 'X' */ _ACPI_UP, /* 0x59 89 'Y' */ _ACPI_UP, /* 0x5A 90 'Z' */ _ACPI_PU, /* 0x5B 91 '[' */ _ACPI_PU, /* 0x5C 92 '\' */ _ACPI_PU, /* 0x5D 93 ']' */ _ACPI_PU, /* 0x5E 94 '^' */ _ACPI_PU, /* 0x5F 95 '_' */ _ACPI_PU, /* 0x60 96 '`' */ _ACPI_XD | _ACPI_LO, /* 0x61 97 'a' */ _ACPI_XD | _ACPI_LO, /* 0x62 98 'b' */ _ACPI_XD | _ACPI_LO, /* 0x63 99 'c' */ _ACPI_XD | _ACPI_LO, /* 0x64 100 'd' */ _ACPI_XD | _ACPI_LO, /* 0x65 101 'e' */ _ACPI_XD | _ACPI_LO, /* 0x66 102 'f' */ _ACPI_LO, /* 0x67 103 'g' */ _ACPI_LO, /* 0x68 104 'h' */ _ACPI_LO, /* 0x69 105 'i' */ _ACPI_LO, /* 0x6A 106 'j' */ _ACPI_LO, /* 0x6B 107 'k' */ _ACPI_LO, /* 0x6C 108 'l' */ _ACPI_LO, /* 0x6D 109 'm' */ _ACPI_LO, /* 0x6E 110 'n' */ _ACPI_LO, /* 0x6F 111 'o' */ _ACPI_LO, /* 0x70 112 'p' */ _ACPI_LO, /* 0x71 113 'q' */ _ACPI_LO, /* 0x72 114 'r' */ _ACPI_LO, /* 0x73 115 's' */ _ACPI_LO, /* 0x74 116 't' */ _ACPI_LO, /* 0x75 117 'u' */ _ACPI_LO, /* 0x76 118 'v' */ _ACPI_LO, /* 0x77 119 'w' */ _ACPI_LO, /* 0x78 120 'x' */ _ACPI_LO, /* 0x79 121 'y' */ _ACPI_LO, /* 0x7A 122 'z' */ _ACPI_PU, /* 0x7B 123 '{' */ _ACPI_PU, /* 0x7C 124 '|' */ _ACPI_PU, /* 0x7D 125 '}' */ _ACPI_PU, /* 0x7E 126 '~' */ _ACPI_CN, /* 0x7F 127 DEL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 to 0x8F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 to 0x9F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0 to 0xAF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0 to 0xBF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 to 0xCF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 to 0xDF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xE0 to 0xEF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xF0 to 0xFF */ 0 /* 0x100 */ }; #endif /* ACPI_USE_SYSTEM_CLIBRARY */ Loading
drivers/acpi/acpica/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -162,5 +162,5 @@ acpi-y += \ utxferror.o \ utxfmutex.o acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o utclib.o acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o
drivers/acpi/acpica/utclib.cdeleted 100644 → 0 +0 −749 Original line number Diff line number Diff line /****************************************************************************** * * Module Name: cmclib - Local implementation of C library functions * *****************************************************************************/ /* * Copyright (C) 2000 - 2012, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #include <acpi/acpi.h> #include "accommon.h" /* * These implementations of standard C Library routines can optionally be * used if a C library is not available. In general, they are less efficient * than an inline or assembly implementation */ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("cmclib") #ifndef ACPI_USE_SYSTEM_CLIBRARY #define NEGATIVE 1 #define POSITIVE 0 /******************************************************************************* * * FUNCTION: acpi_ut_memcmp (memcmp) * * PARAMETERS: buffer1 - First Buffer * buffer2 - Second Buffer * count - Maximum # of bytes to compare * * RETURN: Index where Buffers mismatched, or 0 if Buffers matched * * DESCRIPTION: Compare two Buffers, with a maximum length * ******************************************************************************/ int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count) { return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*buffer1 - (unsigned char)*buffer2)); } /******************************************************************************* * * FUNCTION: acpi_ut_memcpy (memcpy) * * PARAMETERS: dest - Target of the copy * src - Source buffer to copy * count - Number of bytes to copy * * RETURN: Dest * * DESCRIPTION: Copy arbitrary bytes of memory * ******************************************************************************/ void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count) { char *new = (char *)dest; char *old = (char *)src; while (count) { *new = *old; new++; old++; count--; } return (dest); } /******************************************************************************* * * FUNCTION: acpi_ut_memset (memset) * * PARAMETERS: dest - Buffer to set * value - Value to set each byte of memory * count - Number of bytes to set * * RETURN: Dest * * DESCRIPTION: Initialize a buffer to a known value. * ******************************************************************************/ void *acpi_ut_memset(void *dest, u8 value, acpi_size count) { char *new = (char *)dest; while (count) { *new = (char)value; new++; count--; } return (dest); } /******************************************************************************* * * FUNCTION: acpi_ut_strlen (strlen) * * PARAMETERS: string - Null terminated string * * RETURN: Length * * DESCRIPTION: Returns the length of the input string * ******************************************************************************/ acpi_size acpi_ut_strlen(const char *string) { u32 length = 0; /* Count the string until a null is encountered */ while (*string) { length++; string++; } return (length); } /******************************************************************************* * * FUNCTION: acpi_ut_strcpy (strcpy) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * * RETURN: dst_string * * DESCRIPTION: Copy a null terminated string * ******************************************************************************/ char *acpi_ut_strcpy(char *dst_string, const char *src_string) { char *string = dst_string; /* Move bytes brute force */ while (*src_string) { *string = *src_string; string++; src_string++; } /* Null terminate */ *string = 0; return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strncpy (strncpy) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * count - Maximum # of bytes to copy * * RETURN: dst_string * * DESCRIPTION: Copy a null terminated string, with a maximum length * ******************************************************************************/ char *acpi_ut_strncpy(char *dst_string, const char *src_string, acpi_size count) { char *string = dst_string; /* Copy the string */ for (string = dst_string; count && (count--, (*string++ = *src_string++));) {; } /* Pad with nulls if necessary */ while (count--) { *string = 0; string++; } /* Return original pointer */ return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strcmp (strcmp) * * PARAMETERS: string1 - First string * string2 - Second string * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings * ******************************************************************************/ int acpi_ut_strcmp(const char *string1, const char *string2) { for (; (*string1 == *string2); string2++) { if (!*string1++) { return (0); } } return ((unsigned char)*string1 - (unsigned char)*string2); } #ifdef ACPI_FUTURE_IMPLEMENTATION /* Not used at this time */ /******************************************************************************* * * FUNCTION: acpi_ut_strchr (strchr) * * PARAMETERS: string - Search string * ch - character to search for * * RETURN: Ptr to char or NULL if not found * * DESCRIPTION: Search a string for a character * ******************************************************************************/ char *acpi_ut_strchr(const char *string, int ch) { for (; (*string); string++) { if ((*string) == (char)ch) { return ((char *)string); } } return (NULL); } #endif /******************************************************************************* * * FUNCTION: acpi_ut_strncmp (strncmp) * * PARAMETERS: string1 - First string * string2 - Second string * count - Maximum # of bytes to compare * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings, with a maximum length * ******************************************************************************/ int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count) { for (; count-- && (*string1 == *string2); string2++) { if (!*string1++) { return (0); } } return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*string1 - (unsigned char)*string2)); } /******************************************************************************* * * FUNCTION: acpi_ut_strcat (Strcat) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * * RETURN: dst_string * * DESCRIPTION: Append a null terminated string to a null terminated string * ******************************************************************************/ char *acpi_ut_strcat(char *dst_string, const char *src_string) { char *string; /* Find end of the destination string */ for (string = dst_string; *string++;) {; } /* Concatenate the string */ for (--string; (*string++ = *src_string++);) {; } return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strncat (strncat) * * PARAMETERS: dst_string - Target of the copy * src_string - The source string to copy * count - Maximum # of bytes to copy * * RETURN: dst_string * * DESCRIPTION: Append a null terminated string to a null terminated string, * with a maximum count. * ******************************************************************************/ char *acpi_ut_strncat(char *dst_string, const char *src_string, acpi_size count) { char *string; if (count) { /* Find end of the destination string */ for (string = dst_string; *string++;) {; } /* Concatenate the string */ for (--string; (*string++ = *src_string++) && --count;) {; } /* Null terminate if necessary */ if (!count) { *string = 0; } } return (dst_string); } /******************************************************************************* * * FUNCTION: acpi_ut_strstr (strstr) * * PARAMETERS: string1 - Target string * string2 - Substring to search for * * RETURN: Where substring match starts, Null if no match found * * DESCRIPTION: Checks if String2 occurs in String1. This is not really a * full implementation of strstr, only sufficient for command * matching * ******************************************************************************/ char *acpi_ut_strstr(char *string1, char *string2) { char *string; if (acpi_ut_strlen(string2) > acpi_ut_strlen(string1)) { return (NULL); } /* Walk entire string, comparing the letters */ for (string = string1; *string2;) { if (*string2 != *string) { return (NULL); } string2++; string++; } return (string1); } /******************************************************************************* * * FUNCTION: acpi_ut_strtoul (strtoul) * * PARAMETERS: string - Null terminated string * terminater - Where a pointer to the terminating byte is * returned * base - Radix of the string * * RETURN: Converted value * * DESCRIPTION: Convert a string into a 32-bit unsigned value. * Note: use acpi_ut_strtoul64 for 64-bit integers. * ******************************************************************************/ u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base) { u32 converted = 0; u32 index; u32 sign; const char *string_start; u32 return_value = 0; acpi_status status = AE_OK; /* * Save the value of the pointer to the buffer's first * character, save the current errno value, and then * skip over any white space in the buffer: */ string_start = string; while (ACPI_IS_SPACE(*string) || *string == '\t') { ++string; } /* * The buffer may contain an optional plus or minus sign. * If it does, then skip over it but remember what is was: */ if (*string == '-') { sign = NEGATIVE; ++string; } else if (*string == '+') { ++string; sign = POSITIVE; } else { sign = POSITIVE; } /* * If the input parameter Base is zero, then we need to * determine if it is octal, decimal, or hexadecimal: */ if (base == 0) { if (*string == '0') { if (acpi_ut_to_lower(*(++string)) == 'x') { base = 16; ++string; } else { base = 8; } } else { base = 10; } } else if (base < 2 || base > 36) { /* * The specified Base parameter is not in the domain of * this function: */ goto done; } /* * For octal and hexadecimal bases, skip over the leading * 0 or 0x, if they are present. */ if (base == 8 && *string == '0') { string++; } if (base == 16 && *string == '0' && acpi_ut_to_lower(*(++string)) == 'x') { string++; } /* * Main loop: convert the string to an unsigned long: */ while (*string) { if (ACPI_IS_DIGIT(*string)) { index = (u32)((u8)*string - '0'); } else { index = (u32)acpi_ut_to_upper(*string); if (ACPI_IS_UPPER(index)) { index = index - 'A' + 10; } else { goto done; } } if (index >= base) { goto done; } /* * Check to see if value is out of range: */ if (return_value > ((ACPI_UINT32_MAX - (u32)index) / (u32)base)) { status = AE_ERROR; return_value = 0; /* reset */ } else { return_value *= base; return_value += index; converted = 1; } ++string; } done: /* * If appropriate, update the caller's pointer to the next * unconverted character in the buffer. */ if (terminator) { if (converted == 0 && return_value == 0 && string != NULL) { *terminator = (char *)string_start; } else { *terminator = (char *)string; } } if (status == AE_ERROR) { return_value = ACPI_UINT32_MAX; } /* * If a minus sign was present, then "the conversion is negated": */ if (sign == NEGATIVE) { return_value = (ACPI_UINT32_MAX - return_value) + 1; } return (return_value); } /******************************************************************************* * * FUNCTION: acpi_ut_to_upper (TOUPPER) * * PARAMETERS: c - Character to convert * * RETURN: Converted character as an int * * DESCRIPTION: Convert character to uppercase * ******************************************************************************/ int acpi_ut_to_upper(int c) { return (ACPI_IS_LOWER(c) ? ((c) - 0x20) : (c)); } /******************************************************************************* * * FUNCTION: acpi_ut_to_lower (TOLOWER) * * PARAMETERS: c - Character to convert * * RETURN: Converted character as an int * * DESCRIPTION: Convert character to lowercase * ******************************************************************************/ int acpi_ut_to_lower(int c) { return (ACPI_IS_UPPER(c) ? ((c) + 0x20) : (c)); } /******************************************************************************* * * FUNCTION: is* functions * * DESCRIPTION: is* functions use the ctype table below * ******************************************************************************/ const u8 _acpi_ctype[257] = { _ACPI_CN, /* 0x00 0 NUL */ _ACPI_CN, /* 0x01 1 SOH */ _ACPI_CN, /* 0x02 2 STX */ _ACPI_CN, /* 0x03 3 ETX */ _ACPI_CN, /* 0x04 4 EOT */ _ACPI_CN, /* 0x05 5 ENQ */ _ACPI_CN, /* 0x06 6 ACK */ _ACPI_CN, /* 0x07 7 BEL */ _ACPI_CN, /* 0x08 8 BS */ _ACPI_CN | _ACPI_SP, /* 0x09 9 TAB */ _ACPI_CN | _ACPI_SP, /* 0x0A 10 LF */ _ACPI_CN | _ACPI_SP, /* 0x0B 11 VT */ _ACPI_CN | _ACPI_SP, /* 0x0C 12 FF */ _ACPI_CN | _ACPI_SP, /* 0x0D 13 CR */ _ACPI_CN, /* 0x0E 14 SO */ _ACPI_CN, /* 0x0F 15 SI */ _ACPI_CN, /* 0x10 16 DLE */ _ACPI_CN, /* 0x11 17 DC1 */ _ACPI_CN, /* 0x12 18 DC2 */ _ACPI_CN, /* 0x13 19 DC3 */ _ACPI_CN, /* 0x14 20 DC4 */ _ACPI_CN, /* 0x15 21 NAK */ _ACPI_CN, /* 0x16 22 SYN */ _ACPI_CN, /* 0x17 23 ETB */ _ACPI_CN, /* 0x18 24 CAN */ _ACPI_CN, /* 0x19 25 EM */ _ACPI_CN, /* 0x1A 26 SUB */ _ACPI_CN, /* 0x1B 27 ESC */ _ACPI_CN, /* 0x1C 28 FS */ _ACPI_CN, /* 0x1D 29 GS */ _ACPI_CN, /* 0x1E 30 RS */ _ACPI_CN, /* 0x1F 31 US */ _ACPI_XS | _ACPI_SP, /* 0x20 32 ' ' */ _ACPI_PU, /* 0x21 33 '!' */ _ACPI_PU, /* 0x22 34 '"' */ _ACPI_PU, /* 0x23 35 '#' */ _ACPI_PU, /* 0x24 36 '$' */ _ACPI_PU, /* 0x25 37 '%' */ _ACPI_PU, /* 0x26 38 '&' */ _ACPI_PU, /* 0x27 39 ''' */ _ACPI_PU, /* 0x28 40 '(' */ _ACPI_PU, /* 0x29 41 ')' */ _ACPI_PU, /* 0x2A 42 '*' */ _ACPI_PU, /* 0x2B 43 '+' */ _ACPI_PU, /* 0x2C 44 ',' */ _ACPI_PU, /* 0x2D 45 '-' */ _ACPI_PU, /* 0x2E 46 '.' */ _ACPI_PU, /* 0x2F 47 '/' */ _ACPI_XD | _ACPI_DI, /* 0x30 48 '0' */ _ACPI_XD | _ACPI_DI, /* 0x31 49 '1' */ _ACPI_XD | _ACPI_DI, /* 0x32 50 '2' */ _ACPI_XD | _ACPI_DI, /* 0x33 51 '3' */ _ACPI_XD | _ACPI_DI, /* 0x34 52 '4' */ _ACPI_XD | _ACPI_DI, /* 0x35 53 '5' */ _ACPI_XD | _ACPI_DI, /* 0x36 54 '6' */ _ACPI_XD | _ACPI_DI, /* 0x37 55 '7' */ _ACPI_XD | _ACPI_DI, /* 0x38 56 '8' */ _ACPI_XD | _ACPI_DI, /* 0x39 57 '9' */ _ACPI_PU, /* 0x3A 58 ':' */ _ACPI_PU, /* 0x3B 59 ';' */ _ACPI_PU, /* 0x3C 60 '<' */ _ACPI_PU, /* 0x3D 61 '=' */ _ACPI_PU, /* 0x3E 62 '>' */ _ACPI_PU, /* 0x3F 63 '?' */ _ACPI_PU, /* 0x40 64 '@' */ _ACPI_XD | _ACPI_UP, /* 0x41 65 'A' */ _ACPI_XD | _ACPI_UP, /* 0x42 66 'B' */ _ACPI_XD | _ACPI_UP, /* 0x43 67 'C' */ _ACPI_XD | _ACPI_UP, /* 0x44 68 'D' */ _ACPI_XD | _ACPI_UP, /* 0x45 69 'E' */ _ACPI_XD | _ACPI_UP, /* 0x46 70 'F' */ _ACPI_UP, /* 0x47 71 'G' */ _ACPI_UP, /* 0x48 72 'H' */ _ACPI_UP, /* 0x49 73 'I' */ _ACPI_UP, /* 0x4A 74 'J' */ _ACPI_UP, /* 0x4B 75 'K' */ _ACPI_UP, /* 0x4C 76 'L' */ _ACPI_UP, /* 0x4D 77 'M' */ _ACPI_UP, /* 0x4E 78 'N' */ _ACPI_UP, /* 0x4F 79 'O' */ _ACPI_UP, /* 0x50 80 'P' */ _ACPI_UP, /* 0x51 81 'Q' */ _ACPI_UP, /* 0x52 82 'R' */ _ACPI_UP, /* 0x53 83 'S' */ _ACPI_UP, /* 0x54 84 'T' */ _ACPI_UP, /* 0x55 85 'U' */ _ACPI_UP, /* 0x56 86 'V' */ _ACPI_UP, /* 0x57 87 'W' */ _ACPI_UP, /* 0x58 88 'X' */ _ACPI_UP, /* 0x59 89 'Y' */ _ACPI_UP, /* 0x5A 90 'Z' */ _ACPI_PU, /* 0x5B 91 '[' */ _ACPI_PU, /* 0x5C 92 '\' */ _ACPI_PU, /* 0x5D 93 ']' */ _ACPI_PU, /* 0x5E 94 '^' */ _ACPI_PU, /* 0x5F 95 '_' */ _ACPI_PU, /* 0x60 96 '`' */ _ACPI_XD | _ACPI_LO, /* 0x61 97 'a' */ _ACPI_XD | _ACPI_LO, /* 0x62 98 'b' */ _ACPI_XD | _ACPI_LO, /* 0x63 99 'c' */ _ACPI_XD | _ACPI_LO, /* 0x64 100 'd' */ _ACPI_XD | _ACPI_LO, /* 0x65 101 'e' */ _ACPI_XD | _ACPI_LO, /* 0x66 102 'f' */ _ACPI_LO, /* 0x67 103 'g' */ _ACPI_LO, /* 0x68 104 'h' */ _ACPI_LO, /* 0x69 105 'i' */ _ACPI_LO, /* 0x6A 106 'j' */ _ACPI_LO, /* 0x6B 107 'k' */ _ACPI_LO, /* 0x6C 108 'l' */ _ACPI_LO, /* 0x6D 109 'm' */ _ACPI_LO, /* 0x6E 110 'n' */ _ACPI_LO, /* 0x6F 111 'o' */ _ACPI_LO, /* 0x70 112 'p' */ _ACPI_LO, /* 0x71 113 'q' */ _ACPI_LO, /* 0x72 114 'r' */ _ACPI_LO, /* 0x73 115 's' */ _ACPI_LO, /* 0x74 116 't' */ _ACPI_LO, /* 0x75 117 'u' */ _ACPI_LO, /* 0x76 118 'v' */ _ACPI_LO, /* 0x77 119 'w' */ _ACPI_LO, /* 0x78 120 'x' */ _ACPI_LO, /* 0x79 121 'y' */ _ACPI_LO, /* 0x7A 122 'z' */ _ACPI_PU, /* 0x7B 123 '{' */ _ACPI_PU, /* 0x7C 124 '|' */ _ACPI_PU, /* 0x7D 125 '}' */ _ACPI_PU, /* 0x7E 126 '~' */ _ACPI_CN, /* 0x7F 127 DEL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 to 0x8F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 to 0x9F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0 to 0xAF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0 to 0xBF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 to 0xCF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 to 0xDF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xE0 to 0xEF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xF0 to 0xFF */ 0 /* 0x100 */ }; #endif /* ACPI_USE_SYSTEM_CLIBRARY */
