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path: root/drivers/tty/serial/sunsab.c
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Diffstat (limited to 'drivers/tty/serial/sunsab.c')
-rw-r--r--drivers/tty/serial/sunsab.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 1ea2f33a07..1acbe2fba7 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -232,7 +232,7 @@ static void sunsab_tx_idle(struct uart_sunsab_port *);
static void transmit_chars(struct uart_sunsab_port *up,
union sab82532_irq_status *stat)
{
- struct circ_buf *xmit = &up->port.state->xmit;
+ struct tty_port *tport = &up->port.state->port;
int i;
if (stat->sreg.isr1 & SAB82532_ISR1_ALLS) {
@@ -252,7 +252,7 @@ static void transmit_chars(struct uart_sunsab_port *up,
set_bit(SAB82532_XPR, &up->irqflags);
sunsab_tx_idle(up);
- if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
+ if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(&up->port)) {
up->interrupt_mask1 |= SAB82532_IMR1_XPR;
writeb(up->interrupt_mask1, &up->regs->w.imr1);
return;
@@ -265,21 +265,22 @@ static void transmit_chars(struct uart_sunsab_port *up,
/* Stuff 32 bytes into Transmit FIFO. */
clear_bit(SAB82532_XPR, &up->irqflags);
for (i = 0; i < up->port.fifosize; i++) {
- writeb(xmit->buf[xmit->tail],
- &up->regs->w.xfifo[i]);
- uart_xmit_advance(&up->port, 1);
- if (uart_circ_empty(xmit))
+ unsigned char ch;
+
+ if (!uart_fifo_get(&up->port, &ch))
break;
+
+ writeb(ch, &up->regs->w.xfifo[i]);
}
/* Issue a Transmit Frame command. */
sunsab_cec_wait(up);
writeb(SAB82532_CMDR_XF, &up->regs->w.cmdr);
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+ if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)
uart_write_wakeup(&up->port);
- if (uart_circ_empty(xmit))
+ if (kfifo_is_empty(&tport->xmit_fifo))
sunsab_stop_tx(&up->port);
}
@@ -435,10 +436,10 @@ static void sunsab_start_tx(struct uart_port *port)
{
struct uart_sunsab_port *up =
container_of(port, struct uart_sunsab_port, port);
- struct circ_buf *xmit = &up->port.state->xmit;
+ struct tty_port *tport = &up->port.state->port;
int i;
- if (uart_circ_empty(xmit) || uart_tx_stopped(port))
+ if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))
return;
up->interrupt_mask1 &= ~(SAB82532_IMR1_ALLS|SAB82532_IMR1_XPR);
@@ -451,11 +452,12 @@ static void sunsab_start_tx(struct uart_port *port)
clear_bit(SAB82532_XPR, &up->irqflags);
for (i = 0; i < up->port.fifosize; i++) {
- writeb(xmit->buf[xmit->tail],
- &up->regs->w.xfifo[i]);
- uart_xmit_advance(&up->port, 1);
- if (uart_circ_empty(xmit))
+ unsigned char ch;
+
+ if (!uart_fifo_get(&up->port, &ch))
break;
+
+ writeb(ch, &up->regs->w.xfifo[i]);
}
/* Issue a Transmit Frame command. */