📄 fdi_ext.c
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MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* unlock the global_sem_cntrl_mutex to give others access
* to the globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
return ERR_READ;
}
/* need to read the first sequence table's entry for the
b_remaining_in_unit value */
/*
* the data offset into the sequence table unit being accessed
* to begin next access
*/
FDI_OpenParamPtr->b_begin_tabl_offset = index;
FDI_OpenParamPtr->b_seq_table_entry_offset = index;
/* Read the sequence table's first entry. */
hw_status =
FlashDevRead((BYTE_PTR) & table,
FDI_OpenParamPtr->tabl_block_addr + index,
sizeof(ENTRY_TABLE));
if (hw_status != HW_ERR_NONE)
{
/* Clear the Open_Param structure. */
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* unlock the global_sem_cntrl_mutex to give others access
* to the globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
return ERR_READ;
}
/* the size of the data left remaining in the data unit bytes */
FDI_OpenParamPtr->b_remaining_in_unit =
TO_BYTES(table.entry_size);
} else /* OPEN_MODIFY */
{
table_size = TO_BYTES(unit_header_information.g_unit_size);
block = FDI_OpenParamPtr->logical_block;
/*
* fill in the group table, sequence table variables
*/
hw_status = BKGD_GetTableEntry(FDI_OpenParamPtr,
&dummy_word,
(BYTE_PTR) & dummy_word,
&dummy_word,
(BYTE_PTR) & dummy_word,
DWORDMAX,
table_size /
sizeof(ENTRY_TABLE));
if (hw_status != HW_ERR_NONE)
{
/* Clear the Open_Param structure. */
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* unlock the global_sem_cntrl_mutex to give others access
* to the globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
return ERR_READ;
}
/* restore the logical_block and b_unit_size fields */
FDI_OpenParamPtr->logical_block = block;
FDI_OpenParamPtr->b_unit_size = table_size;
/* read back last sequence table entry */
hw_status =
FlashDevRead((BYTE_PTR) & table,
FDI_OpenParamPtr->tabl_block_addr +
FDI_OpenParamPtr->b_seq_table_entry_offset,
sizeof(ENTRY_TABLE));
if (hw_status != HW_ERR_NONE)
{
/* Clear the Open_Param structure. */
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* unlock the global_sem_cntrl_mutex to give others access
* to the globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
return ERR_READ;
}
/* open at the end of the file... */
FDI_OpenParamPtr->b_current_file_offset =
FDI_OpenParamPtr->b_total_size;
} /* ENDELSE !OPEN_READ */
} /* ENDIF attribute == ATTR_GRP_TABLE */
#endif /* INCLUDE_FRAGMENTED_DATA */
}
else if (hw_status != HW_ERR_EMPTY_LKUP)
{
/* Clear the Open_Param structure. */
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* unlock the global_sem_cntrl_mutex to give others access to the
* globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
if (hw_status == HW_ERR_PARAM)
{
return ERR_PARAM;
} else
{
return ERR_SYSTEM;
}
} else
{
/* E.5.3.873 - Begin */
status = GetDataSize(&(FDI_OpenParamPtr->b_current_file_offset),
cmd_cntrl->identifier,
cmd_cntrl->type, cmd_cntrl->priority);
if (status != ERR_NONE)
{
/* Clear the Open_Param structure. */
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)(sizeof(OPEN_PARAM)));
/*
* unlock the global_sem_cntrl_mutex to give others access
* to the globals
*/
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
return status;
}
SEM_MTX_WAIT(SEM_TotalSize);
FDI_OpenTotalSize[MOF_index] = FDI_OpenParamPtr->b_current_file_offset;
SEM_MTX_POST(SEM_TotalSize);
/* E.5.3.873 - End */
FDI_OpenParamPtr->b_current_file_offset = 0;
FDI_OpenParamPtr->type_attribute =
BYTEMASK(cmd_cntrl->type, BYTEMAX);
}
} /* end of else. */
/*
* Set the OpenStream bit in the DLT. This bit reserves the associated ID
* for this open stream in case the DLT is scanned in write.
*/
SEM_MTX_WAIT(SEM_LookupTable);
SET_LOOKUP_TABLE_OSFIELD(cmd_cntrl->type, cmd_cntrl->identifier, MOF_index);
SEM_MTX_POST(SEM_LookupTable);
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
#ifdef TIMING
/* Get timestamp for start of update */
COMM_getTimestamp(&FDI_APIend);
#ifdef writeToFile
fprintf(rw,"time to open data sub command %d of type %d is %1.0f usecs \n",
cmd_cntrl->sub_command,cmd_cntrl->type,
((float)(FDI_APIend.low - FDI_API.low)) * 163.84);
#endif
logMsg("time for opening data sub command %d, of type %d is %d ticks\n",
cmd_cntrl->sub_command, cmd_cntrl->type, (int) (FDI_APIend.low -
FDI_API.low), 0, 0, 0);
#endif
/*
* Opened to create a non_existing data or to read/edit an existing data.
* Hence, indicate successfull completion of data open to the system
* function
*/
return ERR_NONE;
} /* END OF FDI_Open */
/*
#############################################################################
### FDI_Close
###
### DESCRIPTION:
### FDI_Close closes an open data parameter or stream. FDI_close determines
### if a data stream or parameter is open. FDI_close returns an error if
### no data stream or parameter is open. FDI_close clears the open_param
### structure to indicate closing a data stream or parameter.
###
### PARAMETERS:
### IN:
### cmd_cntrl->identifier: This is a unique data parameter or stream
### identifier.
### cmd_cntrl->type : This field indicates a data type_attribute.
### The options are:
### any value between 0x00 to 0x0F.
###
### OUT:
### error : a descriptive error code
###
### RETURNS:
### ERR_NONE ERR_CLOSE ERR_NOTOPEN ERR_NOTEXISTS ERR_PARAM
###
*/
/* E.5.0.652 Begin */
ERR_CODE
FDI_Close(COMMAND_CONTROL * cmd_cntrl)
/* E.5.0.652 End */
{
ERR_CODE status = ERR_NOTOPEN;
#ifdef TIMING
/* Get timestamp for start of update */
COMM_getTimestamp((COMM_TIMESTAMP *) & FDI_API);
#endif
/*
* Check for completion of Initialization and if not yet complete return
* the proper error code.
*/
if (FDI_InitComplete != TRUE)
{
return ERR_INIT;
}
/*
* Check to see if the passed in parameters are valid. Otherwise return
* proper error code.
*/
if ((cmd_cntrl->type > MAX_TYPE) ||
(cmd_cntrl->identifier >= NUM_PARMS[cmd_cntrl->type]) ||
((cmd_cntrl->identifier == ERASE_COUNT_ID) &&
(cmd_cntrl->type == ERASE_COUNT_TYPE))||
(cmd_cntrl->priority < FDI_MIN_PRIORITY) ||
(cmd_cntrl->priority > FDI_MAX_PRIORITY))
{
return ERR_PARAM;
}
/* lock the API_sem_cntrl_mutex. */
SEM_MTX_WAIT(SEM_APIMutexSemaphore);
/* lock the global_sem_cntrl_mutex. */
SEM_MTX_WAIT(SEM_OpenStream);
/* Check to see if a data parameter or stream is already open. */
if (!(EMPTY_LOOKUP_TABLE_OSFIELD(cmd_cntrl->type, cmd_cntrl->identifier)))
{
status = ERR_NONE;
/* E.5.3.873 - Begin */
SEM_MTX_WAIT(SEM_TotalSize);
FDI_OpenTotalSize[LOOKUP_TABLE_OSFIELD(cmd_cntrl->type, \
cmd_cntrl->identifier)] = 0;
SEM_MTX_POST(SEM_TotalSize);
/* E.5.3.873 - End */
/* Clear the Open_Param structure. */
FDI_OpenParamPtr =
&FDI_OpenParam[LOOKUP_TABLE_OSFIELD(cmd_cntrl->type, \
cmd_cntrl->identifier)];
MemorySet((BYTE_PTR)FDI_OpenParamPtr, BYTEMAX,
(DWORD)sizeof(OPEN_PARAM));
/*
* Clear the OpenStream bit in the DLT. This bit reserves the
* associated ID for this open stream in case the DLT is scanned in
* write.
*/
SEM_MTX_WAIT(SEM_LookupTable);
CLEAR_LOOKUP_TABLE_OSFIELD(cmd_cntrl->type, cmd_cntrl->identifier);
SEM_MTX_POST(SEM_LookupTable);
}
/* return error if data was not opened previously. */
/* unlock the global_sem_cntrl_mutex to give others access to the globals */
SEM_MTX_POST(SEM_OpenStream);
/* Unlock the API_sem_cntrl_mutex. */
SEM_MTX_POST(SEM_APIMutexSemaphore);
#ifdef TIMING
/* Get timestamp for start of update */
COMM_getTimestamp(&FDI_APIend);
#ifdef writeToFile
fprintf(rw,"time to close data %1.0f usecs \n",
((float)(FDI_APIend.low - FDI_API.low)) * 163.84);
#endif
logMsg("time for closing data is %d ticks\n", (int) (FDI_APIend.low -
FDI_API.low), 0, 0, 0, 0, 0);
#endif
return status;
} /* END OF FDI_Close */
/*
#############################################################################
### FDI_Get
###
### DESCRIPTION:
### FDI_Get locates the first or next data parameter or stream of the
### specified type or it will find a matched data parameter or stream
### using the type and identifier fields. FDI_get updates theFDI_GetDataFound
### structure. FDI_get calls the DataFind routine and fills in
### the structure FDI_GetDataFound defined from the Data Location
### structure type. FDI_get uses FDI_GetDataFound to find the next data item
### of the same type if the input sub-command is GET_NEXT. Once found,FDI_Get
### calls GetDataSize function, to get the data size and fills in the
### type_attribute information into the cmd_cntrl->type field and the total
### data size in the cmd_cntrl->count field.
###
### PARAMETERS:
### IN:
### cmd_cntrl->sub_cmd : GET_FIRST:
### finds the first data parameter of
### a given type
### GET_NEXT:
### finds the matching data parameter of
### a given type, priority and identifier
### GET_MATCHED: finds the matching data parameter
### of a given type, priority and
### identifier
### cmd_cntrl->identifier: unique data parameter identifier
### cmd_cntrl->type : This field indicates a data type_attribute.
### The options are:
### any value between 0x00 to 0xF.
###
### OUT:
### cmd_cntrl->type: type and attribute
### cmd_cntrl->count: total data size
### error: a descriptive error code
###
### RETURNS:
### ERR_NONE ERR_CLOSE ERR_NOTOPEN ERR_NOTEXISTS ERR_PARAM
###
*/
ERR_CODE
FDI_Get(CMD_CNTRL_PTR cmd_cntrl)
{
BYTE priority;
ERR_CODE status;
#ifdef TIMING
/* Get timestamp for start of update */
COMM_getTimestamp((COMM_TIMESTAMP *) & FDI_API);
#endif
/*
* Check for completion of Initialization and if not yet complete return
* the proper error code.
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