//------------------------------------------------------------------------------
/// Returns the number of locked regions inside the given address range.
/// \param start Start address of range.
/// \param end End address of range.
//------------------------------------------------------------------------------
unsigned char FLASHD_IsLocked(unsigned int start, unsigned int end)
{
AT91S_EFC *pEfc;
unsigned short startPage, endPage;
unsigned char startRegion, endRegion;
unsigned int numPagesInRegion;
unsigned int status;
unsigned char error;
unsigned int numLockedRegions = 0;
SANITY_CHECK(end >= start);
#ifdef AT91C_BASE_EFC1
// Convert wrapped address to physical address.
start &= 0x19FFFF;
end &= 0x19FFFF;
// Check EFC crossover 2 bank
SANITY_CHECK(((start >=AT91C_IFLASH) && (end <= AT91C_IFLASH + AT91C_IFLASH_SIZE))
|| ((start >=AT91C_IFLASH1) && (end <= AT91C_IFLASH1 + AT91C_IFLASH1_SIZE)));
#else
SANITY_CHECK((start >=AT91C_IFLASH) && (end <= AT91C_IFLASH + AT91C_IFLASH_SIZE));
#endif
// Compute page numbers
EFC_TranslateAddress(&pEfc, start, &startPage, 0);
EFC_TranslateAddress(0, end, &endPage, 0);
// Compute region numbers
numPagesInRegion = AT91C_IFLASH_LOCK_REGION_SIZE / AT91C_IFLASH_PAGE_SIZE;
startRegion = startPage / numPagesInRegion;
endRegion = endPage / numPagesInRegion;
if ((endPage % numPagesInRegion) != 0) {
endRegion++;
}
// Retrieve lock status
error = EFC_PerformCommand(pEfc, AT91C_EFC_FCMD_GLB, 0);
ASSERT(!error, "-F- Error while trying to fetch lock bits status (0x%02X)\r\n", error);
status = EFC_GetResult(pEfc);
// Check status of each involved region
while (startRegion < endRegion) {
if ((status & (1 << startRegion)) != 0) {
numLockedRegions++;
}
startRegion++;
}
return numLockedRegions;
}
/**
* \brief Returns the number of locked regions inside the given address range.
*
* \param start Start address of range
* \param end End address of range.
*/
extern uint32_t FLASHD_IsLocked( uint32_t start, uint32_t end )
{
uint32_t i, j;
Efc *pEfc ;
uint16_t startPage, endPage ;
uint8_t startRegion, endRegion ;
uint32_t numPagesInRegion ;
uint32_t status[IFLASH_NB_OF_LOCK_BITS / 32u] ;
uint32_t numLockedRegions = 0 ;
assert( end >= start ) ;
assert( (start >=IFLASH_ADDR) && (end <= IFLASH_ADDR + IFLASH_SIZE) ) ;
/* Compute page numbers */
EFC_TranslateAddress( &pEfc, start, &startPage, 0 ) ;
EFC_TranslateAddress( 0, end, &endPage, 0 ) ;
/* Compute region numbers */
numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ;
startRegion = startPage / numPagesInRegion ;
endRegion = endPage / numPagesInRegion ;
if ((endPage % numPagesInRegion) != 0)
{
endRegion++ ;
}
/* Retrieve lock status */
EFC_PerformCommand( pEfc, EFC_FCMD_GLB, 0, _dwUseIAP ) ;
for (i = 0; i < (IFLASH_NB_OF_LOCK_BITS / 32u); i++)
{
status[i] = EFC_GetResult( pEfc ) ;
}
/* Check status of each involved region */
while ( startRegion < endRegion )
{
i = startRegion / 32u;
j = startRegion % 32u;
if ( (status[i] & (1 << j)) != 0 )
{
numLockedRegions++ ;
}
startRegion++ ;
}
return numLockedRegions ;
}
/**
* \brief Returns the number of locked regions inside the given address range.
*
* \param start Start address of range
* \param end End address of range.
*/
extern uint32_t FLASHD_IsLocked( uint32_t start, uint32_t end )
{
const uint32_t IFLASH_PAGE_SIZE = IS_SAM3() ? IFLASH_PAGE_SIZE_SAM3 : IFLASH_PAGE_SIZE_SAM4;
const uint32_t IFLASH_LOCK_REGION_SIZE = IS_SAM3() ? IFLASH_LOCK_REGION_SIZE_SAM3 : IFLASH_LOCK_REGION_SIZE_SAM4;
Efc *pEfc ;
uint16_t startPage, endPage ;
uint8_t startRegion, endRegion ;
uint32_t numPagesInRegion ;
uint32_t status ;
__attribute__((unused)) uint32_t dwError ;
uint32_t numLockedRegions = 0 ;
assert( end >= start ) ;
assert( (start >=IFLASH_ADDR) && (end <= IFLASH_ADDR + IFLASH_SIZE) ) ;
// Compute page numbers
EFC_TranslateAddress( &pEfc, start, &startPage, 0 ) ;
EFC_TranslateAddress( 0, end, &endPage, 0 ) ;
// Compute region numbers
numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ;
startRegion = startPage / numPagesInRegion ;
endRegion = endPage / numPagesInRegion ;
if ((endPage % numPagesInRegion) != 0)
{
endRegion++ ;
}
// Retrieve lock status
dwError = EFC_PerformCommand( pEfc, EFC_FCMD_GLB, 0, _dwUseIAP ) ;
assert( !dwError ) ;
status = EFC_GetResult( pEfc ) ;
// Check status of each involved region
while ( startRegion < endRegion )
{
if ( (status & (1 << startRegion)) != 0 )
{
numLockedRegions++ ;
}
startRegion++ ;
}
return numLockedRegions ;
}
/**
* \brief Check if the given GPNVM bit is set or not.
*
* \param gpnvm GPNVM bit index.
* \returns 1 if the given GPNVM bit is currently set; otherwise returns 0.
*/
extern uint32_t FLASHD_IsGPNVMSet( uint8_t ucGPNVM )
{
uint32_t dwStatus ;
assert( ucGPNVM < GPNVM_NUM_MAX ) ;
/* Get GPNVMs status */
EFC_PerformCommand( EFC, EFC_FCMD_GFB, 0, _dwUseIAP ) ;
dwStatus = EFC_GetResult( EFC ) ;
/* Check if GPNVM is set */
if ( (dwStatus & (1 << ucGPNVM)) != 0 )
{
return 1 ;
}
else
{
return 0 ;
}
}
//------------------------------------------------------------------------------
/// Returns 1 if the given GPNVM bit is currently set; otherwise returns 0.
/// \param gpnvm GPNVM bit index.
//------------------------------------------------------------------------------
unsigned char FLASHD_IsGPNVMSet(unsigned char gpnvm)
{
unsigned char error;
unsigned int status;
SANITY_CHECK(gpnvm < EFC_NUM_GPNVMS);
// Get GPNVMs status
error = EFC_PerformCommand(AT91C_EFC_FCMD_GFB, 0);
ASSERT(!error, "-F- Error while trying to fetch GPNVMs status (0x%02X)\n\r", error);
status = EFC_GetResult();
// Check if GPNVM is set
if ((status & (1 << gpnvm)) != 0) {
return 1;
}
else {
return 0;
}
}
//------------------------------------------------------------------------------
/// Returns the number of locked regions inside the given address range.
/// \param start Start address of range.
/// \param end End address of range.
//------------------------------------------------------------------------------
unsigned char FLASHD_IsLocked(unsigned int start, unsigned int end)
{
unsigned short startPage, endPage;
unsigned char startRegion, endRegion;
unsigned int numPagesInRegion;
unsigned int status;
unsigned char error;
unsigned int numLockedRegions = 0;
// Compute page numbers
EFC_TranslateAddress(start, &startPage, 0);
EFC_TranslateAddress(end, &endPage, 0);
// Compute region numbers
numPagesInRegion = AT91C_IFLASH_LOCK_REGION_SIZE / AT91C_IFLASH_PAGE_SIZE;
startRegion = startPage / numPagesInRegion;
endRegion = endPage / numPagesInRegion;
if ((endPage % numPagesInRegion) != 0) {
endRegion++;
}
// Retrieve lock status
error = EFC_PerformCommand(AT91C_EFC_FCMD_GLB, 0);
ASSERT(!error, "-F- Error while trying to fetch lock bits status (0x%02X)\n\r", error);
status = EFC_GetResult();
// Check status of each involved region
while (startRegion < endRegion) {
if ((status & (1 << startRegion)) != 0) {
numLockedRegions++;
}
startRegion++;
}
return numLockedRegions;
}
/**
* \brief Check if the given GPNVM bit is set or not.
*
* \param gpnvm GPNVM bit index.
* \returns 1 if the given GPNVM bit is currently set; otherwise returns 0.
*/
extern uint32_t FLASHD_IsGPNVMSet( uint8_t ucGPNVM )
{
__attribute__((unused)) uint32_t dwError ;
uint32_t dwStatus ;
assert( ucGPNVM < 2 ) ;
/* Get GPNVMs status */
dwError = EFC_PerformCommand( EFC, EFC_FCMD_GFB, 0, _dwUseIAP ) ;
assert( !dwError ) ;
dwStatus = EFC_GetResult( EFC ) ;
/* Check if GPNVM is set */
if ( (dwStatus & (1 << ucGPNVM)) != 0 )
{
return 1 ;
}
else
{
return 0 ;
}
}
