void CnxtAdslLEDTask(void *sem)
{
BOOL HandShakeLED;
BOOL ShowtimeLED;
struct task_struct *tsk = current ;
tsk->session = 1 ;
tsk->pgrp = 1 ;
strcpy ( tsk->comm, "CnxtAdslLEDTask" ) ;
/* sigstop and sigcont will stop and wakeup kupdate */
spin_lock_irq(&tsk->sigmask_lock);
sigfillset(&tsk->blocked);
siginitsetinv(¤t->blocked, sigmask(SIGCONT) | sigmask(SIGSTOP));
recalc_sigpending(tsk);
spin_unlock_irq(&tsk->sigmask_lock);
up((struct semaphore *)sem);
while(1)
{
/* Condensed Showtime State to two Booleans - In Showtime and In Training */
ShowtimeLED= FALSE;
HandShakeLED= FALSE;
switch (HWSTATE.dwLineStatus)
{
case HW_IO_MODEM_STATUS_ACTIVATED:
ShowtimeLED= TRUE;
break;
case HW_IO_MODEM_STATUS_CHANNEL_ANALYSIS:
case HW_IO_MODEM_STATUS_TRANSCEIVER_TRAINING:
case HW_IO_MODEM_STATUS_EXCHANGE:
case HW_IO_MODEM_STATUS_ACTIVATION:
HandShakeLED= TRUE;
break;
}
/* Blink Showtime LED if in Training */
if (ShowtimeLED || HandShakeLED)
{
WriteGPIOData( GPOUT_SHOWTIME_LED,LED_ON );
}
/* This logic is for a blinking Showtime LED */
if (!ShowtimeLED)
{
WriteGPIOData( GPOUT_SHOWTIME_LED,LED_OFF );
}
TaskDelayMsec(LED_DELAY_PERIOD);
}
}
BOOLEAN uart_xmtr_fifo_put_chars
(
BYTE *charbuf, // Pointer to data to be put on fifo
UINT16 charbufsize // Number of characters to be put on fifo
)
{
BYTE *pChar;
UINT16 numcharsput;
UINT16 numcharsleft;
CNXT_UART *pUARTChan = &spUartChan[0];
numcharsleft = charbufsize;
pChar = charbuf;
while( 1 )
{
UINT8 IERStatus ;
// Put the characters into the transmitter fifo
numcharsput = uart_fifo_put_chars( &pUARTChan->xmtr_uart_fifo, pChar, numcharsleft );
//adjust the character pointer and the character count.
pChar += numcharsput;
numcharsleft -= numcharsput;
// Is the transmit interrupt disabled?
// (It gets disabled in the ISR when it empties the FIFO)
if
(
( HW_UART == HWSTATE.eUARTState)
&&
( ! (SPUART_REG_READ( pUARTChan, Ser_IER, IERStatus ) & IER_THR ) )
)
{
// Put the first character into the uart
// to start the interrupt driven draining process
UINT8 IERStatus ;
char outChar ;
// (There may be no chars if ISR has already drained the FIFO between
// the time we put them in and the time we reach this statement)
if ( uart_fifo_get_char(&pUARTChan->xmtr_uart_fifo, &outChar) )
{
// output first char
SPUART_REG_WRITE(pUARTChan, Ser_THR, outChar);
// Reenable tx interrupt since ISR disables it when it
// empties software FIFO and that must be the case if the
// HW TX FIFO (aka Tx Hold Reg) is empty.
SPUART_REG_READ( pUARTChan, Ser_IER, IERStatus );
IERStatus |= IER_THR;
SPUART_REG_WRITE(pUARTChan, Ser_IER, IERStatus );
}
}
// Did the xmtr fifo accept all of the characters?
if ( numcharsleft == 0)
{
// Then we are through.
return TRUE;
}
// It did not so delay a while
// and try again.
TaskDelayMsec(10);
}
}
