/**
* \brief Configures a list of Pin instances, each of which can either hold a single
* pin or a group of pins, depending on the mask value; all pins are configured
* by this function. The size of the array must also be provided and is easily
* computed using PIO_LISTSIZE whenever its length is not known in advance.
*
* \param list Pointer to a list of Pin instances.
* \param size Size of the Pin list (calculated using PIO_LISTSIZE).
*
* \return 1 if the pins have been configured properly; otherwise 0.
*/
uint8_t PIO_Configure( const Pin *list, uint32_t size )
{
/* Configure pins */
while ( size > 0 )
{
switch ( list->type )
{
case PIO_PERIPH_A:
PIO_SetPeripheralA(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_B:
PIO_SetPeripheralB(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_C:
PIO_SetPeripheralC(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_D:
PIO_SetPeripheralD(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_INPUT:
#ifndef __FPGA
PMC_EnablePeripheral(list->id);
#endif
PIO_SetInput(list->pio,
list->mask,
list->attribute);
break;
case PIO_OUTPUT_0:
case PIO_OUTPUT_1:
PIO_SetOutput(list->pio,
list->mask,
(list->type == PIO_OUTPUT_1),
(list->attribute & PIO_OPENDRAIN) ? 1 : 0,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
default: return 0;
}
list++;
size--;
}
return 1;
}
//------------------------------------------------------------------------------
/// Configures a list of Pin instances, each of which can either hold a single
/// pin or a group of pins, depending on the mask value; all pins are configured
/// by this function. The size of the array must also be provided and is easily
/// computed using PIO_LISTSIZE whenever its length is not known in advance.
/// \param list Pointer to a list of Pin instances.
/// \param size Size of the Pin list (calculated using PIO_LISTSIZE).
/// \return 1 if the pins have been configured properly; otherwise 0.
//------------------------------------------------------------------------------
unsigned char PIO_Configure(const Pin *list, unsigned int size)
{
// Configure pins
while (size > 0) {
switch (list->type) {
case PIO_PERIPH_A:
PIO_SetPeripheralA(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_B:
PIO_SetPeripheralB(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_INPUT:
AT91C_BASE_PMC->PMC_PCER = 1 << list->id;
PIO_SetInput(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0,
(list->attribute & PIO_DEGLITCH)? 1 : 0);
#if defined(AT91C_PIOA_IFDGSR) //PIO3 with Glitch or Debouncing selection
//if glitch input filter enabled, set it
if(list->attribute & PIO_DEGLITCH)//Glitch input filter enabled
PIO_SetFilter(list->pio,
list->inFilter.filterSel,
list->inFilter.clkDivider);
#endif
break;
case PIO_OUTPUT_0:
case PIO_OUTPUT_1:
PIO_SetOutput(list->pio,
list->mask,
(list->type == PIO_OUTPUT_1),
(list->attribute & PIO_OPENDRAIN) ? 1 : 0,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
default: return 0;
}
list++;
size--;
}
return 1;
}
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
/// Configures a list of Pin instances, which can either hold a single pin or a
/// group of pins, depending on the mask value; all pins are configured by this
/// function.
/// Returns 1 if the configuration has been performed successfully; otherwise 0.
/// \param list Pointer to a list of Pin instances.
/// \param size Size of the Pin list (see <PIO_LISTSIZE>).
//------------------------------------------------------------------------------
unsigned char PIO_Configure(const Pin *list, unsigned int size)
{
// Configure pins
while (size > 0) {
switch (list->type) {
case PIO_PERIPH_A:
PIO_SetPeripheralA(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_PERIPH_B:
PIO_SetPeripheralB(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
case PIO_INPUT:
AT91C_BASE_PMC->PMC_PCER = 1 << list->id;
PIO_SetInput(list->pio,
list->mask,
(list->attribute & PIO_PULLUP) ? 1 : 0,
(list->attribute & PIO_DEGLITCH)? 1 : 0);
break;
case PIO_OUTPUT_0:
case PIO_OUTPUT_1:
PIO_SetOutput(list->pio,
list->mask,
(list->type == PIO_OUTPUT_1),
(list->attribute & PIO_OPENDRAIN) ? 1 : 0,
(list->attribute & PIO_PULLUP) ? 1 : 0);
break;
default: return 0;
}
list++;
size--;
}
return 1;
}
/**
* \brief Configures a list of Pin instances, each of which can either hold a single
* pin or a group of pins, depending on the mask value; all pins are configured
* by this function. The size of the array must also be provided and is easily
* computed using PIO_LISTSIZE whenever its length is not known in advance.
*
* \param list Pointer to a list of Pin instances.
* \param size Size of the Pin list (calculated using PIO_LISTSIZE).
*
* \return 1 if the pins have been configured properly; otherwise 0.
*/
extern uint32_t PIO_PinConfigure( const Pin* pPins, uint32_t dwSize )
{
uint32_t dwOptions=0 ;
/* Configure pins */
while ( dwSize > 0 )
{
switch ( pPins->type )
{
case PIO_PERIPH_A :
if ( pPins->attribute & PIO_PULLUP )
{
dwOptions=PIO_PULLUP ;
}
PIO_SetPeripheralA( pPins->pio, pPins->mask, dwOptions ) ;
break ;
case PIO_PERIPH_B :
if ( pPins->attribute & PIO_PULLUP )
{
dwOptions=PIO_PULLUP ;
}
PIO_SetPeripheralB( pPins->pio, pPins->mask, dwOptions ) ;
break ;
case PIO_INPUT :
PMC_EnablePeripheral( pPins->id ) ;
PIO_SetInput( pPins->pio, pPins->mask, pPins->attribute ) ;
break ;
case PIO_OUTPUT_0 :
case PIO_OUTPUT_1 :
if ( pPins->type == PIO_OUTPUT_1 )
{
dwOptions|=PIO_OUTPUT_HIGH ;
}
if ( pPins->attribute & PIO_OPENDRAIN )
{
dwOptions|=PIO_OPENDRAIN ;
}
if ( pPins->attribute & PIO_PULLUP )
{
dwOptions|=PIO_PULLUP ;
}
PIO_SetOutput( pPins->pio, pPins->mask, dwOptions ) ;
break ;
default :
return 0 ;
}
pPins++ ;
dwSize-- ;
}
return 1 ;
}