X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fserial%2Fmux.c;h=ccb8fa1800a58e0b8a9f1fdf1b32b40d1e225831;hb=606d099cdd1080bbb50ea50dc52d98252f8f10a1;hp=36e3bcb1ebf0f2fd0e36e307e54088221e9e2afe;hpb=92495c0ebc99ee00651571cba6939783234f7696;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index 36e3bcb..ccb8fa1 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -16,7 +16,6 @@
 **
 */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/tty.h>
 #include <linux/ioport.h>
@@ -51,7 +50,7 @@
 #define MUX_BREAK(status) ((status & 0xF000) == 0x2000)
 
 #define MUX_NR 256
-static unsigned int port_cnt = 0;
+static unsigned int port_cnt __read_mostly;
 static struct uart_port mux_ports[MUX_NR];
 
 static struct uart_driver mux_driver = {
@@ -223,11 +222,6 @@ static void mux_read(struct uart_port *port)
 		if (MUX_EOFIFO(data))
 			break;
 
-		if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-			continue;
-
-		*tty->flip.char_buf_ptr = data & 0xffu;
-		*tty->flip.flag_buf_ptr = TTY_NORMAL;
 		port->icount.rx++;
 
 		if (MUX_BREAK(data)) {
@@ -236,12 +230,10 @@ static void mux_read(struct uart_port *port)
 				continue;
 		}
 
-		if (uart_handle_sysrq_char(port, data & 0xffu, NULL))
+		if (uart_handle_sysrq_char(port, data & 0xffu))
 			continue;
 
-		tty->flip.flag_buf_ptr++;
-		tty->flip.char_buf_ptr++;
-		tty->flip.count++;
+		tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
 	}
 	
 	if (start_count != port->icount.rx) {
@@ -281,8 +273,8 @@ static void mux_shutdown(struct uart_port *port)
  * The Serial Mux does not support this function.
  */
 static void
-mux_set_termios(struct uart_port *port, struct termios *termios,
-	        struct termios *old)
+mux_set_termios(struct uart_port *port, struct ktermios *termios,
+	        struct ktermios *old)
 {
 }
 
@@ -468,8 +460,8 @@ static int __init mux_probe(struct parisc_device *dev)
 		port->iobase	= 0;
 		port->mapbase	= dev->hpa.start + MUX_OFFSET +
 						(i * MUX_LINE_OFFSET);
-		port->membase	= ioremap(port->mapbase, MUX_LINE_OFFSET);
-		port->iotype	= SERIAL_IO_MEM;
+		port->membase	= ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
+		port->iotype	= UPIO_MEM;
 		port->type	= PORT_MUX;
 		port->irq	= NO_IRQ;
 		port->uartclk	= 0;
@@ -477,6 +469,13 @@ static int __init mux_probe(struct parisc_device *dev)
 		port->ops	= &mux_pops;
 		port->flags	= UPF_BOOT_AUTOCONF;
 		port->line	= port_cnt;
+
+		/* The port->timeout needs to match what is present in
+		 * uart_wait_until_sent in serial_core.c.  Otherwise
+		 * the time spent in msleep_interruptable will be very
+		 * long, causing the appearance of a console hang.
+		 */
+		port->timeout   = HZ / 50;
 		spin_lock_init(&port->lock);
 		status = uart_add_one_port(&mux_driver, port);
 		BUG_ON(status);
@@ -522,6 +521,8 @@ static void __exit mux_exit(void)
 
 	for (i = 0; i < port_cnt; i++) {
 		uart_remove_one_port(&mux_driver, &mux_ports[i]);
+		if (mux_ports[i].membase)
+			iounmap(mux_ports[i].membase);
 	}
 
 	uart_unregister_driver(&mux_driver);