Updated functions to deal with USB clocking. (PPL1) See http://www.nxp.com/documents/user_manual/UM10360.pdf Section 4.6 & 4.7.3
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Diff: CoreMark/core_util.c
- Revision:
- 0:b5d3bd64d2dc
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CoreMark/core_util.c Sun Jan 24 15:46:26 2010 +0000 @@ -0,0 +1,210 @@ +/* +Author : Shay Gal-On, EEMBC + +This file is part of EEMBC(R) and CoreMark(TM), which are Copyright (C) 2009 +All rights reserved. + +EEMBC CoreMark Software is a product of EEMBC and is provided under the terms of the +CoreMark License that is distributed with the official EEMBC COREMARK Software release. +If you received this EEMBC CoreMark Software without the accompanying CoreMark License, +you must discontinue use and download the official release from www.coremark.org. + +Also, if you are publicly displaying scores generated from the EEMBC CoreMark software, +make sure that you are in compliance with Run and Reporting rules specified in the accompanying readme.txt file. + +EEMBC +4354 Town Center Blvd. Suite 114-200 +El Dorado Hills, CA, 95762 +*/ +#include "coremark.h" +/* Function: get_seed + Get a values that cannot be determined at compile time. + + Since different embedded systems and compilers are used, 3 different methods are provided: + 1 - Using a volatile variable. This method is only valid if the compiler is forced to generate code that + reads the value of a volatile variable from memory at run time. + Please note, if using this method, you would need to modify core_portme.c to generate training profile. + 2 - Command line arguments. This is the preferred method if command line arguments are supported. + 3 - System function. If none of the first 2 methods is available on the platform, + a system function which is not a stub can be used. + + e.g. read the value on GPIO pins connected to switches, or invoke special simulator functions. +*/ +#if (SEED_METHOD==SEED_VOLATILE) + extern volatile ee_s32 seed1_volatile; + extern volatile ee_s32 seed2_volatile; + extern volatile ee_s32 seed3_volatile; + extern volatile ee_s32 seed4_volatile; + extern volatile ee_s32 seed5_volatile; + ee_s32 get_seed_32(int i) { + ee_s32 retval; + switch (i) { + case 1: + retval=seed1_volatile; + break; + case 2: + retval=seed2_volatile; + break; + case 3: + retval=seed3_volatile; + break; + case 4: + retval=seed4_volatile; + break; + case 5: + retval=seed5_volatile; + break; + default: + retval=0; + break; + } + return retval; + } +#elif (SEED_METHOD==SEED_ARG) +ee_s32 parseval(char *valstring) { + ee_s32 retval=0; + ee_s32 neg=1; + int hexmode=0; + if (*valstring == '-') { + neg=-1; + valstring++; + } + if ((valstring[0] == '0') && (valstring[1] == 'x')) { + hexmode=1; + valstring+=2; + } + /* first look for digits */ + if (hexmode) { + while (((*valstring >= '0') && (*valstring <= '9')) || ((*valstring >= 'a') && (*valstring <= 'f'))) { + ee_s32 digit=*valstring-'0'; + if (digit>9) + digit=10+*valstring-'a'; + retval*=16; + retval+=digit; + valstring++; + } + } else { + while ((*valstring >= '0') && (*valstring <= '9')) { + ee_s32 digit=*valstring-'0'; + retval*=10; + retval+=digit; + valstring++; + } + } + /* now add qualifiers */ + if (*valstring=='K') + retval*=1024; + if (*valstring=='M') + retval*=1024*1024; + + retval*=neg; + return retval; +} + +ee_s32 get_seed_args(int i, int argc, char *argv[]) { + if (argc>i) + return parseval(argv[i]); + return 0; +} + +#elif (SEED_METHOD==SEED_FUNC) +/* If using OS based function, you must define and implement the functions below in core_portme.h and core_portme.c ! */ +ee_s32 get_seed_32(int i) { + ee_s32 retval; + switch (i) { + case 1: + retval=portme_sys1(); + break; + case 2: + retval=portme_sys2(); + break; + case 3: + retval=portme_sys3(); + break; + case 4: + retval=portme_sys4(); + break; + case 5: + retval=portme_sys5(); + break; + default: + retval=0; + break; + } + return retval; +} +#endif + +/* Function: crc* + Service functions to calculate 16b CRC code. + +*/ +ee_u16 crcu8(ee_u8 data, ee_u16 crc ) +{ + ee_u8 i=0,x16=0,carry=0; + + for (i = 0; i < 8; i++) + { + x16 = (ee_u8)((data & 1) ^ ((ee_u8)crc & 1)); + data >>= 1; + + if (x16 == 1) + { + crc ^= 0x4002; + carry = 1; + } + else + carry = 0; + crc >>= 1; + if (carry) + crc |= 0x8000; + else + crc &= 0x7fff; + } + return crc; +} +ee_u16 crcu16(ee_u16 newval, ee_u16 crc) { + crc=crcu8( (ee_u8) (newval) ,crc); + crc=crcu8( (ee_u8) ((newval)>>8) ,crc); + return crc; +} +ee_u16 crcu32(ee_u32 newval, ee_u16 crc) { + crc=crc16((ee_s16) newval ,crc); + crc=crc16((ee_s16) (newval>>16) ,crc); + return crc; +} +ee_u16 crc16(ee_s16 newval, ee_u16 crc) { + return crcu16((ee_u16)newval, crc); +} + +ee_u8 check_data_types() { + ee_u8 retval=0; + if (sizeof(ee_u8) != 1) { + ee_printf("ERROR: ee_u8 is not an 8b datatype!\n"); + retval++; + } + if (sizeof(ee_u16) != 2) { + ee_printf("ERROR: ee_u16 is not a 16b datatype!\n"); + retval++; + } + if (sizeof(ee_s16) != 2) { + ee_printf("ERROR: ee_s16 is not a 16b datatype!\n"); + retval++; + } + if (sizeof(ee_s32) != 4) { + ee_printf("ERROR: ee_s32 is not a 32b datatype!\n"); + retval++; + } + if (sizeof(ee_u32) != 4) { + ee_printf("ERROR: ee_u32 is not a 32b datatype!\n"); + retval++; + } + if (sizeof(ee_ptr_int) != sizeof(int *)) { + ee_printf("ERROR: ee_ptr_int is not a datatype that holds an int pointer!\n"); + retval++; + } + if (retval>0) { + ee_printf("ERROR: Please modify the datatypes in core_portme.h!\n"); + } + return retval; +}