static WORD initdata()
{
union
{
WORD tempvar;
struct
{
BYTE LoByte;
BYTE HiByte;
} bytes;
} TWOBYTES;
BYTE programflags;
XEEBeginRead(sizeof(AppConfig)+ 49000); //This is a cheat, needs to fix memory map properly!
programflags = XEERead(); //ONLY autorun program on first execution
if (initflag == 0)
{
initflag=1;
runprogram = CHECK_BIT(programflags,0);
debugoutput = CHECK_BIT(programflags,1);
}
TWOBYTES.bytes.HiByte = XEERead();
TWOBYTES.bytes.LoByte = XEERead();
return(TWOBYTES.tempvar);
}
/*********************************************************************
* Function: XEE_RESULT XEEReadArray(unsigned char control,
* XEE_ADDR address,
* unsigned char *buffer,
* unsigned char length)
*
* PreCondition: XEEInit() is already called.
*
* Input: control - EEPROM control and address code.
* address - Address from where array is to be read
* buffer - Caller supplied buffer to hold the data
* length - Number of bytes to read.
*
* Output: XEE_SUCCESS if successful
* other value if failed.
*
* Side Effects: None
*
* Overview: Reads desired number of bytes in sequential mode.
* This function performs all necessary steps
* and releases the bus when finished.
*
* Note: None
********************************************************************/
XEE_RESULT XEEReadArray(unsigned char control,
XEE_ADDR address,
unsigned char *buffer,
unsigned char length)
{
XEE_RESULT r;
r = XEEBeginRead(control, address);
if ( r != XEE_SUCCESS )
return r;
while( length-- )
*buffer++ = XEERead();
r = XEEEndRead();
return r;
}
/*****************************************************************************
Function:
BOOL MPFSGet(MPFS_HANDLE hMPFS, BYTE* c)
Description:
Reads a byte from a file.
Precondition:
The file handle referenced by hMPFS is already open.
Parameters:
hMPFS - the file handle from which to read
c - Where to store the byte that was read
Return Values:
TRUE - The byte was successfully read
FALSE - No byte was read because either the handle was invalid or
the end of the file has been reached.
***************************************************************************/
BOOL MPFSGet(MPFS_HANDLE hMPFS, BYTE* c)
{
// Make sure we're reading a valid address
if(hMPFS > MAX_MPFS_HANDLES)
return FALSE;
if( MPFSStubs[hMPFS].addr == MPFS_INVALID ||
MPFSStubs[hMPFS].bytesRem == 0u)
return FALSE;
if(c == NULL)
{
MPFSStubs[hMPFS].addr++;
MPFSStubs[hMPFS].bytesRem--;
return TRUE;
}
// Read function for EEPROM
#if defined(MPFS_USE_EEPROM)
// For performance, cache the last read address
if(MPFSStubs[hMPFS].addr != lastRead+1)
XEEBeginRead(MPFSStubs[hMPFS].addr + MPFS_HEAD);
*c = XEERead();
lastRead = MPFSStubs[hMPFS].addr;
MPFSStubs[hMPFS].addr++;
#elif defined(MPFS_USE_SPI_FLASH)
#if (GRAPHICS_PICTAIL_VERSION == 3)
SST25ReadArray(MPFSStubs[hMPFS].addr + MPFS_HEAD, c, 1);
#else
xSemaphoreTake(QVGASemaphore, portMAX_DELAY);
SST39PMPInit();
SST39ReadArray(MPFSStubs[hMPFS].addr + MPFS_HEAD, c, 1);
LCDPMPInit();
xSemaphoreGive(QVGASemaphore);
#endif
MPFSStubs[hMPFS].addr++;
#else
#if defined(__C30__)
{
DWORD addr;
DWORD_VAL read;
BYTE i;
// MPFS Images are addressed by the byte; Program memory by the word.
//
// Flash program memory is 24 bits wide and only even words are
// implemented. The upper byte of the upper word is read as 0x00.
// Address in program memory of any given byte is (MPFSAddr * 2) / 3
//
// We will read 24 bits at a time, but need to support using only
// fractions of the first and last byte.
// Find the beginning address in program memory.
addr = (MPFSStubs[hMPFS].addr / 3) << 1;
// Find where to start in that first 3 bytes
read.Val = (addr * 3) >> 1;
if(read.Val == MPFSStubs[hMPFS].addr)
i = 0;
else if(read.Val+1 == MPFSStubs[hMPFS].addr)
i = 1;
else
i = 2;
// Add in the MPFS starting address offset
addr += MPFS_HEAD;
// Update the MPFS Handle
MPFSStubs[hMPFS].addr++;
// Read the DWORD
read.Val = ReadProgramMemory(addr & 0x00FFFFFF);
*c = read.v[i];
}
#else
{
DWORD dwHITECHWorkaround = MPFS_HEAD;
*c = *((ROM BYTE*)(MPFSStubs[hMPFS].addr+dwHITECHWorkaround));
MPFSStubs[hMPFS].addr++;
}
#endif
#endif
MPFSStubs[hMPFS].bytesRem--;
return TRUE;
}
BOOL MPFSGetBegin(MPFS hFile)
{
_currentHandle = hFile;
return (XEEBeginRead(hFile) == XEE_SUCCESS);
}
BOOL MPFSGetBegin(MPFS handle)
{
_currentHandle = handle;
return (XEEBeginRead(EEPROM_CONTROL, handle) == XEE_SUCCESS);
}
/*****************************************************************************
Function:
bool MPFSGet(MPFS_HANDLE hMPFS, uint8_t* c)
Description:
Reads a byte from a file.
Precondition:
The file handle referenced by hMPFS is already open.
Parameters:
hMPFS - the file handle from which to read
c - Where to store the byte that was read
Return Values:
true - The byte was successfully read
false - No byte was read because either the handle was invalid or
the end of the file has been reached.
***************************************************************************/
bool MPFSGet(MPFS_HANDLE hMPFS, uint8_t* c)
{
// Make sure we're reading a valid address
if(hMPFS > MAX_MPFS_HANDLES)
return false;
if( MPFSStubs[hMPFS].addr == MPFS_INVALID ||
MPFSStubs[hMPFS].bytesRem == 0u)
return false;
if(c == NULL)
{
MPFSStubs[hMPFS].addr++;
MPFSStubs[hMPFS].bytesRem--;
return true;
}
// Read function for EEPROM
#if defined(MPFS_USE_EEPROM)
// For performance, cache the last read address
if(MPFSStubs[hMPFS].addr != lastRead+1)
XEEBeginRead(MPFSStubs[hMPFS].addr + MPFS_HEAD);
*c = XEERead();
lastRead = MPFSStubs[hMPFS].addr;
MPFSStubs[hMPFS].addr++;
#elif defined(MPFS_USE_SPI_FLASH)
SPIFlashReadArray(MPFSStubs[hMPFS].addr + MPFS_HEAD, c, 1);
MPFSStubs[hMPFS].addr++;
#else
#if defined(__C30__)
{
uint32_t addr;
TCPIP_UINT32_VAL read;
uint8_t i;
// MPFS Images are addressed by the byte; Program memory by the word.
//
// Flash program memory is 24 bits wide and only even words are
// implemented. The upper byte of the upper word is read as 0x00.
// Address in program memory of any given byte is (MPFSAddr * 2) / 3
//
// We will read 24 bits at a time, but need to support using only
// fractions of the first and last byte.
// Find the beginning address in program memory.
addr = (MPFSStubs[hMPFS].addr / 3) << 1;
// Find where to start in that first 3 bytes
read.Val = (addr * 3) >> 1;
if(read.Val == MPFSStubs[hMPFS].addr)
i = 0;
else if(read.Val+1 == MPFSStubs[hMPFS].addr)
i = 1;
else
i = 2;
// Add in the MPFS starting address offset
addr += MPFS_HEAD;
// Update the MPFS Handle
MPFSStubs[hMPFS].addr++;
// Read the uint32_t
read.Val = ReadProgramMemory(addr & 0x00FFFFFF);
*c = read.v[i];
}
#else
{
uint32_t dwHITECHWorkaround = MPFS_HEAD;
*c = *((const uint8_t*)(MPFSStubs[hMPFS].addr+dwHITECHWorkaround));
MPFSStubs[hMPFS].addr++;
}
#endif
#endif
MPFSStubs[hMPFS].bytesRem--;
return true;
}
/*********************************************************************
* Function: void InitAppConfig(void)
*
* PreCondition: MPFSInit() is already called.
*
* Input: None
*
* Output: Write/Read non-volatile config variables.
*
* Side Effects: None
*
* Overview: None
*
* Note: None
********************************************************************/
static void InitAppConfig(void)
{
#if defined(MPFS_USE_EEPROM)
BYTE c;
BYTE *p;
#endif
/*
* Load default configuration into RAM.
*/
AppConfig.MyIPAddr.v[0] = MY_DEFAULT_IP_ADDR_BYTE1;
AppConfig.MyIPAddr.v[1] = MY_DEFAULT_IP_ADDR_BYTE2;
AppConfig.MyIPAddr.v[2] = MY_DEFAULT_IP_ADDR_BYTE3;
AppConfig.MyIPAddr.v[3] = MY_DEFAULT_IP_ADDR_BYTE4;
AppConfig.MyMask.v[0] = MY_DEFAULT_MASK_BYTE1;
AppConfig.MyMask.v[1] = MY_DEFAULT_MASK_BYTE2;
AppConfig.MyMask.v[2] = MY_DEFAULT_MASK_BYTE3;
AppConfig.MyMask.v[3] = MY_DEFAULT_MASK_BYTE4;
AppConfig.MyGateway.v[0] = MY_DEFAULT_GATE_BYTE1;
AppConfig.MyGateway.v[1] = MY_DEFAULT_GATE_BYTE2;
AppConfig.MyGateway.v[2] = MY_DEFAULT_GATE_BYTE3;
AppConfig.MyGateway.v[3] = MY_DEFAULT_GATE_BYTE4;
AppConfig.MyMACAddr.v[0] = MY_DEFAULT_MAC_BYTE1;
AppConfig.MyMACAddr.v[1] = MY_DEFAULT_MAC_BYTE2;
AppConfig.MyMACAddr.v[2] = MY_DEFAULT_MAC_BYTE3;
AppConfig.MyMACAddr.v[3] = MY_DEFAULT_MAC_BYTE4;
AppConfig.MyMACAddr.v[4] = MY_DEFAULT_MAC_BYTE5;
AppConfig.MyMACAddr.v[5] = MY_DEFAULT_MAC_BYTE6;
#if defined(STACK_USE_DHCP) || defined(STACK_USE_IP_GLEANING)
AppConfig.Flags.bIsDHCPEnabled = TRUE;
#else
AppConfig.Flags.bIsDHCPEnabled = FALSE;
#endif
#if defined(MPFS_USE_EEPROM)
p = (BYTE*)&AppConfig;
XEEBeginRead(EEPROM_CONTROL, 0x00);
c = XEERead();
XEEEndRead();
/*
* When a record is saved, first byte is written as 0x55 to indicate
* that a valid record was saved.
*/
if ( c == 0x55 )
{
XEEBeginRead(EEPROM_CONTROL, 0x01);
for ( c = 0; c < sizeof(AppConfig); c++ )
*p++ = XEERead();
XEEEndRead();
}
else
SaveAppConfig();
#endif
}