2 * FreeRTOS+FAT FS V1.0.0 (C) 2013 HCC Embedded
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4 * The FreeRTOS+FAT SL license terms are different to the FreeRTOS license
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7 * FreeRTOS+FAT SL uses a dual license model that allows the software to be used
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8 * under a pure GPL open source license (as opposed to the modified GPL licence
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9 * under which FreeRTOS is distributed) or a commercial license. Details of
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10 * both license options follow:
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12 * - Open source licensing -
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13 * FreeRTOS+FAT SL is a free download and may be used, modified, evaluated and
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14 * distributed without charge provided the user adheres to version two of the
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15 * GNU General Public License (GPL) and does not remove the copyright notice or
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16 * this text. The GPL V2 text is available on the gnu.org web site, and on the
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17 * following URL: http://www.FreeRTOS.org/gpl-2.0.txt.
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19 * - Commercial licensing -
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20 * Businesses and individuals who for commercial or other reasons cannot comply
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21 * with the terms of the GPL V2 license must obtain a commercial license before
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22 * incorporating FreeRTOS+FAT SL into proprietary software for distribution in
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23 * any form. Commercial licenses can be purchased from
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24 * http://shop.freertos.org/fat_sl and do not require any source files to be
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27 * FreeRTOS+FAT SL is distributed in the hope that it will be useful. You
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28 * cannot use FreeRTOS+FAT SL unless you agree that you use the software 'as
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29 * is'. FreeRTOS+FAT SL is provided WITHOUT ANY WARRANTY; without even the
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30 * implied warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A
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31 * PARTICULAR PURPOSE. Real Time Engineers Ltd. and HCC Embedded disclaims all
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32 * conditions and terms, be they implied, expressed, or statutory.
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34 * http://www.FreeRTOS.org
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35 * http://www.FreeRTOS.org/FreeRTOS-Plus
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39 #include "../../api/fat_sl.h"
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40 #include "../../psp/include/psp_rtc.h"
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45 #include "../../version/ver_fat_sl.h"
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46 #if VER_FAT_SL_MAJOR != 3 || VER_FAT_SL_MINOR != 2
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47 #error Incompatible FAT_SL version number!
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51 /****************************************************************************
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55 * get a word 16bit number from a memory (it uses LITTLE ENDIAN mode always)
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59 * ptr - pointer where data is
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65 ***************************************************************************/
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66 unsigned short _f_getword ( void * ptr )
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68 unsigned char * sptr = (unsigned char *)ptr;
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71 ret = (unsigned short)( sptr[1] & 0xff );
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73 ret |= ( sptr[0] & 0xff );
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78 /****************************************************************************
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82 * set a word 16bit number into a memory (it uses LITTLE ENDIAN mode always)
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86 * ptr - where to store data
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87 * num - 16 bit number to store
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89 ***************************************************************************/
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90 void _f_setword ( void * ptr, unsigned short num )
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92 unsigned char * sptr = (unsigned char *)ptr;
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94 sptr[1] = (unsigned char)( num >> 8 );
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95 sptr[0] = (unsigned char)( num );
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99 /****************************************************************************
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103 * get a long 32bit number from a memory (it uses LITTLE ENDIAN mode always)
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107 * ptr - pointer where data is
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113 ***************************************************************************/
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114 unsigned long _f_getlong ( void * ptr )
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116 unsigned char * sptr = (unsigned char *)ptr;
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119 ret = (unsigned long)( sptr[3] & 0xff );
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121 ret |= ( sptr[2] & 0xff );
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123 ret |= ( sptr[1] & 0xff );
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125 ret |= ( sptr[0] & 0xff );
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130 /****************************************************************************
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134 * set a long 32bit number into a memory (it uses LITTLE ENDIAN mode always)
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138 * ptr - where to store data
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139 * num - 32 bit number to store
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141 ***************************************************************************/
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142 void _f_setlong ( void * ptr, unsigned long num )
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144 unsigned char * sptr = (unsigned char *)ptr;
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146 sptr[3] = (unsigned char)( num >> 24 );
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147 sptr[2] = (unsigned char)( num >> 16 );
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148 sptr[1] = (unsigned char)( num >> 8 );
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149 sptr[0] = (unsigned char)( num );
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153 /****************************************************************************
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157 * fills with zero charater to memory
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161 * num - number of characters
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162 * ptr - where to store data
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166 * last write position
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168 ***************************************************************************/
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169 unsigned char * _setcharzero ( int num, unsigned char * ptr )
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180 /****************************************************************************
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184 * copy a charater string to memory
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188 * array - original code what to copy
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189 * num - number of characters
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190 * ptr - where to store data
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194 * last write position
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196 ***************************************************************************/
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197 unsigned char * _setchar ( const unsigned char * array, int num, unsigned char * ptr )
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201 return _setcharzero( num, ptr );
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213 /****************************************************************************
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217 * store a 16bit word into memory
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221 * num - 16bit number to store
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222 * ptr - where to store data
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226 * last write position
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228 ***************************************************************************/
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229 unsigned char * _setword ( unsigned short num, unsigned char * ptr )
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231 _f_setword( ptr, num );
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236 /****************************************************************************
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240 * store a 32bit long number into memory
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244 * num - 32bit number to store
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245 * ptr - where to store data
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249 * last write position
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251 ***************************************************************************/
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252 unsigned char * _setlong ( unsigned long num, unsigned char * ptr )
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254 _f_setlong( ptr, num );
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259 /****************************************************************************
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263 * convert a string into lower case
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267 * s - input string to convert
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269 ***************************************************************************/
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270 char _f_toupper ( char ch )
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272 if ( ( ch >= 'a' ) && ( ch <= 'z' ) )
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274 return (char)( ch - 'a' + 'A' );
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281 /****************************************************************************
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286 * time - pointer to time variable
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287 * date - pointer to date variable
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289 * time - current time
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290 * date - current date
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295 ***************************************************************************/
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296 void f_igettimedate ( unsigned short * time, unsigned short * date )
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298 t_psp_timedate s_timedate;
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300 psp_getcurrenttimedate( &s_timedate );
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302 *time = ( ( (uint16_t)s_timedate.hour << F_CTIME_HOUR_SHIFT ) & F_CTIME_HOUR_MASK )
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303 | ( ( (uint16_t)s_timedate.min << F_CTIME_MIN_SHIFT ) & F_CTIME_MIN_MASK )
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304 | ( ( ( (uint16_t)s_timedate.sec >> 1 ) << F_CTIME_SEC_SHIFT ) & F_CTIME_SEC_MASK );
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306 *date = ( ( ( s_timedate.year - 1980 ) << F_CDATE_YEAR_SHIFT ) & F_CDATE_YEAR_MASK )
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307 | ( ( (uint16_t)s_timedate.month << F_CDATE_MONTH_SHIFT ) & F_CDATE_MONTH_MASK )
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308 | ( ( (uint16_t)s_timedate.day << F_CDATE_DAY_SHIFT ) & F_CDATE_DAY_MASK );
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