164 lines
5.8 KiB
C
164 lines
5.8 KiB
C
/** @file hal/micro/cortexm3/mfg-token.h
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* @brief Cortex-M3 Manufacturing token system
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*
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* <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. -->
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*/
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#ifndef MFG_TOKEN_H_
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#define MFG_TOKEN_H_
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// The manufacturing tokens live in the Info Blocks, while all other tokens
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// live in the Simulated EEPROM. This requires the token names to be defined
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// as different data (mfg tokens are memory address, all others are an enum).
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#define DEFINETOKENS
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/**
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* @description Macro for translating token defs into address variables
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* that point to the correct location in the Info Blocks. (This is the
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* extern, the actual definition is found in hal/micro/cortexm3/token.c)
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*
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* @param name: The name of the token.
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*
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* @param TOKEN_##name##_ADDRESS: The address in EEPROM at which the token
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* will be stored. This parameter is generated with a macro above.
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*/
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#define TOKEN_MFG(name,creator,iscnt,isidx,type,arraysize,...) \
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extern const uint16_t TOKEN_##name;
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#include "hal/micro/cortexm3/token-manufacturing.h"
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#undef TOKEN_MFG
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/**
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* @description Macro for translating token definitions into size variables.
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* This provides a convenience for abstracting the 'sizeof(type)' anywhere.
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*
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* @param name: The name of the token.
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*
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* @param type: The token type. The types are found in token-stack.h.
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*/
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#define TOKEN_MFG(name,creator,iscnt,isidx,type,arraysize,...) \
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TOKEN_##name##_SIZE = sizeof(type),
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enum {
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#include "hal/micro/cortexm3/token-manufacturing.h"
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};
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#undef TOKEN_MFG
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#undef TOKEN_DEF
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/**
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* @description Macro for typedef'ing the CamelCase token type found in
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* token-stack.h to a capitalized TOKEN style name that ends in _TYPE.
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* This macro allows other macros below to use 'token##_TYPE' to declare
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* a local copy of that token.
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*
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* @param name: The name of the token.
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*
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* @param type: The token type. The types are found in token-stack.h.
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*/
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#define TOKEN_MFG(name,creator,iscnt,isidx,type,arraysize,...) \
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typedef type TOKEN_##name##_TYPE;
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#include "hal/micro/cortexm3/token-manufacturing.h"
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#undef TOKEN_MFG
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#undef TOKEN_NEXT_ADDRESS
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#define DEFINEADDRESSES
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/**
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* @description Macro for creating a 'region' element in the enum below. This
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* creates an element in the enum that provides a starting point (address) for
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* subsequent tokens to align against. ( See hal/micro/cortexm3/token.c for
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* the instances of TOKEN_NEXT_ADDRESS() );
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*
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* @param region: The name to give to the element in the address enum..
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*
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* @param address: The address in EEPROM where the region begins.
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*/
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#define TOKEN_NEXT_ADDRESS(region, address) \
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TOKEN_##region##_NEXT_ADDRESS = ((address) - 1),
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/**
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* @description Macro for creating ADDRESS and END elements for each token in
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* the enum below. The ADDRESS element is linked to from the the normal
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* TOKEN_##name macro and provides the value passed into the internal token
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* system calls. The END element is a placeholder providing the starting
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* point for the ADDRESS of the next dynamically positioned token.
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*
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* @param name: The name of the token.
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*
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* @param arraysize: The number of elements in an indexed token (arraysize=1
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* for scalar tokens).
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*/
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#define TOKEN_MFG(name,creator,iscnt,isidx,type,arraysize,...) \
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TOKEN_##name##_ADDRESS, \
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TOKEN_##name##_END = TOKEN_##name##_ADDRESS + \
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(TOKEN_##name##_SIZE * arraysize) - 1,
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/**
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* @description The enum that operates on the two macros above. Also provides
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* an indentifier so the address of the top of the token system can be known.
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*/
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enum {
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#include "hal/micro/cortexm3/token-manufacturing.h"
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};
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#undef TOKEN_MFG
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#undef DEFINEADDRESSES
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#undef DEFINETOKENS
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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/**
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* @description Copies the token value from non-volatile storage into a RAM
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* location. This is the internal function that the exposed API
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* (halCommonGetMfgToken) expands out to. The
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* API simplifies the access into this function by hiding the size parameter.
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*
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* @param data: A pointer to where the data being read should be placed.
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*
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* @param token: The name of the token to get data from. On this platform
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* that name is defined as an address.
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*
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* @param index: The index to access. If the token being accessed is not an
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* indexed token, this parameter is set by the API to be 0x7F.
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*
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* @param len: The length of the token being worked on. This value is
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* automatically set by the API to be the size of the token.
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*/
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void halInternalGetMfgTokenData(void *data, uint16_t token, uint8_t index, uint8_t len);
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/**
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* @description Sets the value of a token in non-volatile storage. This is
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* the internal function that the exposed API (halCommonSetMfgToken)
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* expands out to. The API simplifies the access into this function
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* by hiding the size parameter.
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*
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* <b>NOTE:</b> CIB manufacturing tokens can only be written by on-chip
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* code if the token is currently unprogrammed.
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*
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* <b>REMEMBER:</b> The flash hardware requires writing to 16bit aligned
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* addresses with a length that is multiples of 16bits.
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*
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* @param token: The name of the token to get data from. On this platform
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* that name is defined as an address.
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*
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* @param data: A pointer to the data being written.
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*
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* @param len: The length of the token being worked on. This value is
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* automatically set by the API to be the size of the token.
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*/
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void halInternalSetMfgTokenData(uint16_t token, void *data, uint8_t len);
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#define halCommonGetMfgToken( data, token ) \
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halInternalGetMfgTokenData(data, token, 0x7F, token##_SIZE)
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#define halCommonGetIndexedMfgToken( data, token, index ) \
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halInternalGetMfgTokenData(data, token, index, token##_SIZE)
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#define halCommonSetMfgToken( token, data ) \
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halInternalSetMfgTokenData(token, data, token##_SIZE)
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#endif //DOXYGEN_SHOULD_SKIP_THIS
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#endif //MFG_TOKEN_H_
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