/*
* interrupts disabled on entry
*/
-static void sa1100_stop_tx(struct uart_port *port, unsigned int tty_stop)
+static void sa1100_stop_tx(struct uart_port *port)
{
struct sa1100_port *sport = (struct sa1100_port *)port;
u32 utcr3;
/*
* interrupts may not be disabled on entry
*/
-static void sa1100_start_tx(struct uart_port *port, unsigned int tty_start)
+static void sa1100_start_tx(struct uart_port *port)
{
struct sa1100_port *sport = (struct sa1100_port *)port;
unsigned long flags;
sa1100_rx_chars(struct sa1100_port *sport, struct pt_regs *regs)
{
struct tty_struct *tty = sport->port.info->tty;
- unsigned int status, ch, flg, ignored = 0;
+ unsigned int status, ch, flg;
status = UTSR1_TO_SM(UART_GET_UTSR1(sport)) |
UTSR0_TO_SM(UART_GET_UTSR0(sport));
* note that the error handling code is
* out of the main execution path
*/
- if (status & UTSR1_TO_SM(UTSR1_PRE | UTSR1_FRE | UTSR1_ROR))
- goto handle_error;
+ if (status & UTSR1_TO_SM(UTSR1_PRE | UTSR1_FRE | UTSR1_ROR)) {
+ if (status & UTSR1_TO_SM(UTSR1_PRE))
+ sport->port.icount.parity++;
+ else if (status & UTSR1_TO_SM(UTSR1_FRE))
+ sport->port.icount.frame++;
+ if (status & UTSR1_TO_SM(UTSR1_ROR))
+ sport->port.icount.overrun++;
+
+ status &= sport->port.read_status_mask;
+
+ if (status & UTSR1_TO_SM(UTSR1_PRE))
+ flg = TTY_PARITY;
+ else if (status & UTSR1_TO_SM(UTSR1_FRE))
+ flg = TTY_FRAME;
+
+#ifdef SUPPORT_SYSRQ
+ sport->port.sysrq = 0;
+#endif
+ }
if (uart_handle_sysrq_char(&sport->port, ch, regs))
goto ignore_char;
- error_return:
- tty_insert_flip_char(tty, ch, flg);
+ uart_insert_char(&sport->port, status, UTSR1_TO_SM(UTSR1_ROR), ch, flg);
+
ignore_char:
status = UTSR1_TO_SM(UART_GET_UTSR1(sport)) |
UTSR0_TO_SM(UART_GET_UTSR0(sport));
}
- out:
tty_flip_buffer_push(tty);
- return;
-
- handle_error:
- if (status & UTSR1_TO_SM(UTSR1_PRE))
- sport->port.icount.parity++;
- else if (status & UTSR1_TO_SM(UTSR1_FRE))
- sport->port.icount.frame++;
- if (status & UTSR1_TO_SM(UTSR1_ROR))
- sport->port.icount.overrun++;
-
- if (status & sport->port.ignore_status_mask) {
- if (++ignored > 100)
- goto out;
- goto ignore_char;
- }
-
- status &= sport->port.read_status_mask;
-
- if (status & UTSR1_TO_SM(UTSR1_PRE))
- flg = TTY_PARITY;
- else if (status & UTSR1_TO_SM(UTSR1_FRE))
- flg = TTY_FRAME;
-
- if (status & UTSR1_TO_SM(UTSR1_ROR)) {
- /*
- * overrun does *not* affect the character
- * we read from the FIFO
- */
- tty_insert_flip_char(tty, ch, flg);
- ch = 0;
- flg = TTY_OVERRUN;
- }
-#ifdef SUPPORT_SYSRQ
- sport->port.sysrq = 0;
-#endif
- goto error_return;
}
static void sa1100_tx_chars(struct sa1100_port *sport)
sa1100_mctrl_check(sport);
if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {
- sa1100_stop_tx(&sport->port, 0);
+ sa1100_stop_tx(&sport->port);
return;
}
uart_write_wakeup(&sport->port);
if (uart_circ_empty(xmit))
- sa1100_stop_tx(&sport->port, 0);
+ sa1100_stop_tx(&sport->port);
}
static irqreturn_t sa1100_int(int irq, void *dev_id, struct pt_regs *regs)