/*
* console_outbyte_interrupts
*
* This routine transmits a character out.
*
* Input parameters:
* port - port to transmit character to
* ch - character to be transmitted
*
* Output parameters: NONE
*
* Return values: NONE
*/
void console_outbyte_interrupts(
const Port_85C30_info *Port,
char ch
)
{
Console_Protocol *protocol;
uint32_t isrlevel;
protocol = Port->Protocol;
/*
* If this is the first character then we need to prime the pump
*/
if ( protocol->Is_TX_active == false ) {
rtems_interrupt_disable( isrlevel );
protocol->Is_TX_active = true;
outbyte_polled_85c30( Port->ctrl, ch );
rtems_interrupt_enable( isrlevel );
return;
}
while ( Ring_buffer_Is_full( &protocol->TX_Buffer ) );
Ring_buffer_Add_character( &protocol->TX_Buffer, ch );
}
void buffered_io_add_string( char *s )
{
char *p = s;
while ( *p ) {
Ring_buffer_Add_character( &Buffer, *p++ );
}
}
/*#####################################################################
# interrupt handler for receive of character from duart on ports A & B
#####################################################################*/
rtems_isr C_Receive_ISR(rtems_vector_number vector)
{
volatile unsigned char *_addr;
/*
* Clear pit interrupt.
*/
_addr = (unsigned char *) (MC68230_PIT_ADDR + MC68230_PITSR);
*_addr = 0x04;
/*
* check port A first for input
* extract rcvrdy on port B
* set ptr to recieve buffer and read character into ring buffer
*/
_addr = (unsigned char *) (DUART_ADDR + MC68681_STATUS_REG_A);
if (*_addr & MC68681_RX_READY) /* extract rcvrdy on port A */
{
_addr = (unsigned char *) (DUART_ADDR + MC68681_RECEIVE_BUFFER_A);
Ring_buffer_Add_character( &Console_Buffer[ 0 ], *_addr );
}
/*
* If not on port A, let's check port B
* extract rcvrdy on port B
* set ptr to recieve buffer and read character into ring buffer
*/
else
{
_addr = (unsigned char *) (DUART_ADDR + MC68681_STATUS_REG_B);
if (*_addr & MC68681_RX_READY) /* extract rcvrdy on port B */
{
_addr = (unsigned char *) (DUART_ADDR + MC68681_RECEIVE_BUFFER_B);
Ring_buffer_Add_character( &Console_Buffer[ 1 ], *_addr );
}
/*
* if not ready on port A or port B, must be an error
* if error, get out so that fifo is undisturbed
*/
}
}
void console_outbyte_interrupt(
int port,
char ch
)
{
/*
* If this is the first character then we need to prime the pump
*/
if ( Is_TX_active[ port ] == false ) {
Is_TX_active[ port ] = true;
console_outbyte_polled( port, ch );
return;
}
while ( Ring_buffer_Is_full( &TX_Buffer[ port ] ) );
Ring_buffer_Add_character( &TX_Buffer[ port ], ch );
}
