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MFp4: Handle break interrupts (it seems to only work for USART, not DBGU).

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This commit is contained in:
Olivier Houchard 2006-03-22 21:16:09 +00:00
parent b422186846
commit eea877f42d
1 changed files with 12 additions and 2 deletions
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14
sys/arm/at91/uart_dev_at91usart.c
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@ -177,12 +177,16 @@ static void
at91_usart_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,
int parity)
{
int cr;
at91_usart_param(bas, baudrate, databits, stopbits, parity);
/* Turn on rx and tx */
uart_setreg(bas, USART_CR, USART_CR_RSTRX | USART_CR_RSTTX);
cr = USART_CR_RSTSTA | USART_CR_RSTRX | USART_CR_RSTTX;
uart_setreg(bas, USART_CR, cr);
uart_setreg(bas, USART_CR, USART_CR_RXEN | USART_CR_TXEN);
uart_setreg(bas, USART_IER, USART_CSR_TXRDY | USART_CSR_RXRDY);
uart_setreg(bas, USART_IER, USART_CSR_TXRDY | USART_CSR_RXRDY |
USART_CSR_RXBRK);
}
/*
@ -362,6 +366,12 @@ at91_usart_bus_ipend(struct uart_softc *sc)
ipend |= SER_INT_TXIDLE;
if (csr & USART_CSR_RXRDY)
ipend |= SER_INT_RXREADY;
if (csr & USART_CSR_RXBRK) {
unsigned int cr = USART_CR_RSTSTA;
ipend |= SER_INT_BREAK;
uart_setreg(&sc->sc_bas, USART_CR, cr);
}
mtx_unlock_spin(&sc->sc_hwmtx);
return (ipend);
}