diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/atmel_serial.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index 9d948bccafaf..2c9bf9b68327 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -1213,6 +1213,24 @@ static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser) return ret; } +#ifdef CONFIG_CONSOLE_POLL +static int atmel_poll_get_char(struct uart_port *port) +{ + while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY)) + cpu_relax(); + + return UART_GET_CHAR(port); +} + +static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) +{ + while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) + cpu_relax(); + + UART_PUT_CHAR(port, ch); +} +#endif + static struct uart_ops atmel_pops = { .tx_empty = atmel_tx_empty, .set_mctrl = atmel_set_mctrl, @@ -1232,6 +1250,10 @@ static struct uart_ops atmel_pops = { .config_port = atmel_config_port, .verify_port = atmel_verify_port, .pm = atmel_serial_pm, +#ifdef CONFIG_CONSOLE_POLL + .poll_get_char = atmel_poll_get_char, + .poll_put_char = atmel_poll_put_char, +#endif }; /* |
