X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fserial%2Fsunzilog.c;h=10b35c6f287daacaf39c7514a436a547caf5dd12;hb=ba93c6297b9cfad5a70b5e5ed13c9dbead6601d3;hp=d75445738c881d4ef442455e5b0b9e3a335be5bd;hpb=87129d96265cebcb1176896746d285b46c2d7b36;p=powerpc.git

diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index d75445738c..10b35c6f28 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -319,7 +319,7 @@ sunzilog_receive_chars(struct uart_sunzilog_port *up,
 		       struct pt_regs *regs)
 {
 	struct tty_struct *tty;
-	unsigned char ch, r1;
+	unsigned char ch, r1, flag;
 
 	tty = NULL;
 	if (up->port.info != NULL &&		/* Unopened serial console */
@@ -362,19 +362,8 @@ sunzilog_receive_chars(struct uart_sunzilog_port *up,
 			continue;
 		}
 
-		if (unlikely(tty->flip.count >= TTY_FLIPBUF_SIZE)) {
-			tty->flip.work.func((void *)tty);
-			/*
-			 * The 8250 bails out of the loop here,
-			 * but we need to read everything, or die.
-			 */
-			if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-				continue;
-		}
-
 		/* A real serial line, record the character and status.  */
-		*tty->flip.char_buf_ptr = ch;
-		*tty->flip.flag_buf_ptr = TTY_NORMAL;
+		flag = TTY_NORMAL;
 		up->port.icount.rx++;
 		if (r1 & (BRK_ABRT | PAR_ERR | Rx_OVR | CRC_ERR)) {
 			if (r1 & BRK_ABRT) {
@@ -391,28 +380,21 @@ sunzilog_receive_chars(struct uart_sunzilog_port *up,
 				up->port.icount.overrun++;
 			r1 &= up->port.read_status_mask;
 			if (r1 & BRK_ABRT)
-				*tty->flip.flag_buf_ptr = TTY_BREAK;
+				flag = TTY_BREAK;
 			else if (r1 & PAR_ERR)
-				*tty->flip.flag_buf_ptr = TTY_PARITY;
+				flag = TTY_PARITY;
 			else if (r1 & CRC_ERR)
-				*tty->flip.flag_buf_ptr = TTY_FRAME;
+				flag = TTY_FRAME;
 		}
 		if (uart_handle_sysrq_char(&up->port, ch, regs))
 			continue;
 
 		if (up->port.ignore_status_mask == 0xff ||
 		    (r1 & up->port.ignore_status_mask) == 0) {
-			tty->flip.flag_buf_ptr++;
-			tty->flip.char_buf_ptr++;
-			tty->flip.count++;
-		}
-		if ((r1 & Rx_OVR) &&
-		    tty->flip.count < TTY_FLIPBUF_SIZE) {
-			*tty->flip.flag_buf_ptr = TTY_OVERRUN;
-			tty->flip.flag_buf_ptr++;
-			tty->flip.char_buf_ptr++;
-			tty->flip.count++;
+		    	tty_insert_flip_char(tty, ch, flag);
 		}
+		if (r1 & Rx_OVR)
+			tty_insert_flip_char(tty, 0, TTY_OVERRUN);
 	}
 
 	return tty;
@@ -517,10 +499,9 @@ static void sunzilog_transmit_chars(struct uart_sunzilog_port *up,
 	if (up->port.info == NULL)
 		goto ack_tx_int;
 	xmit = &up->port.info->xmit;
-	if (uart_circ_empty(xmit)) {
-		uart_write_wakeup(&up->port);
+	if (uart_circ_empty(xmit))
 		goto ack_tx_int;
-	}
+
 	if (uart_tx_stopped(&up->port))
 		goto ack_tx_int;
 
@@ -1409,7 +1390,6 @@ static struct console sunzilog_console = {
 	.index	=	-1,
 	.data   =	&sunzilog_reg,
 };
-#define SUNZILOG_CONSOLE	(&sunzilog_console)
 
 static int __init sunzilog_console_init(void)
 {
@@ -1432,8 +1412,31 @@ static int __init sunzilog_console_init(void)
 	register_console(&sunzilog_console);
 	return 0;
 }
+
+static inline struct console *SUNZILOG_CONSOLE(void)
+{
+	int i;
+
+	if (con_is_present())
+		return NULL;
+
+	for (i = 0; i < NUM_CHANNELS; i++) {
+		int this_minor = sunzilog_reg.minor + i;
+
+		if ((this_minor - 64) == (serial_console - 1))
+			break;
+	}
+	if (i == NUM_CHANNELS)
+		return NULL;
+
+	sunzilog_console.index = i;
+	sunzilog_port_table[i].flags |= SUNZILOG_FLAG_IS_CONS;
+
+	return &sunzilog_console;
+}
+
 #else
-#define SUNZILOG_CONSOLE	(NULL)
+#define SUNZILOG_CONSOLE()	(NULL)
 #define sunzilog_console_init() do { } while (0)
 #endif
 
@@ -1506,7 +1509,7 @@ static void __init sunzilog_prepare(void)
 		up[(chip * 2) + 1].port.membase = (void __iomem *)&rp->channelB;
 
 		/* Channel A */
-		up[(chip * 2) + 0].port.iotype = SERIAL_IO_MEM;
+		up[(chip * 2) + 0].port.iotype = UPIO_MEM;
 		up[(chip * 2) + 0].port.irq = zilog_irq;
 		up[(chip * 2) + 0].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 0].port.fifosize = 1;
@@ -1517,7 +1520,7 @@ static void __init sunzilog_prepare(void)
 		up[(chip * 2) + 0].flags |= SUNZILOG_FLAG_IS_CHANNEL_A;
 
 		/* Channel B */
-		up[(chip * 2) + 1].port.iotype = SERIAL_IO_MEM;
+		up[(chip * 2) + 1].port.iotype = UPIO_MEM;
 		up[(chip * 2) + 1].port.irq = zilog_irq;
 		up[(chip * 2) + 1].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 1].port.fifosize = 1;
@@ -1685,14 +1688,15 @@ static int __init sunzilog_ports_init(void)
 	}
 		
 	sunzilog_reg.nr = uart_count;
-	sunzilog_reg.cons = SUNZILOG_CONSOLE;
-
 	sunzilog_reg.minor = sunserial_current_minor;
-	sunserial_current_minor += uart_count;
 
 	ret = uart_register_driver(&sunzilog_reg);
 	if (ret == 0) {
-		sunzilog_console_init();
+		sunzilog_reg.tty_driver->name_base = sunzilog_reg.minor - 64;
+		sunzilog_reg.cons = SUNZILOG_CONSOLE();
+
+		sunserial_current_minor += uart_count;
+
 		for (i = 0; i < NUM_CHANNELS; i++) {
 			struct uart_sunzilog_port *up = &sunzilog_port_table[i];