Merge branch 'merge'

[pandora-kernel.git] / drivers / serial / mpc52xx_uart.c

diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 1288d62..7708e5d 100644 (file)
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -40,11 +40,10 @@
  * and so on). So the PSC1 is mapped to /dev/ttyPSC0, PSC2 to /dev/ttyPSC1 and
  * so on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly
  * fpr the console code : without this 1:1 mapping, at early boot time, when we
- * are parsing the kernel args console=ttyPSC?, we wouldn't know wich PSC it
+ * are parsing the kernel args console=ttyPSC?, we wouldn't know which PSC it
  * will be mapped to.
  */
 
-#include <linux/config.h>
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/tty.h>
@@ -191,7 +190,7 @@ mpc52xx_uart_startup(struct uart_port *port)
 
        /* Request IRQ */
        ret = request_irq(port->irq, mpc52xx_uart_int,
-               SA_INTERRUPT | SA_SAMPLE_RANDOM, "mpc52xx_psc_uart", port);
+               IRQF_DISABLED | IRQF_SAMPLE_RANDOM, "mpc52xx_psc_uart", port);
        if (ret)
                return ret;
 
@@ -405,17 +404,13 @@ static inline int
 mpc52xx_uart_int_rx_chars(struct uart_port *port, struct pt_regs *regs)
 {
        struct tty_struct *tty = port->info->tty;
-       unsigned char ch;
+       unsigned char ch, flag;
        unsigned short status;
 
        /* While we can read, do so ! */
        while ( (status = in_be16(&PSC(port)->mpc52xx_psc_status)) &
                MPC52xx_PSC_SR_RXRDY) {
 
-               /* If we are full, just stop reading */
-               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                       break;
-               
                /* Get the char */
                ch = in_8(&PSC(port)->mpc52xx_psc_buffer_8);
 
@@ -428,45 +423,35 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port, struct pt_regs *regs)
 #endif
 
                /* Store it */
-               *tty->flip.char_buf_ptr = ch;
-               *tty->flip.flag_buf_ptr = 0;
+
+               flag = TTY_NORMAL;
                port->icount.rx++;
        
                if ( status & (MPC52xx_PSC_SR_PE |
                               MPC52xx_PSC_SR_FE |
-                              MPC52xx_PSC_SR_RB |
-                              MPC52xx_PSC_SR_OE) ) {
+                              MPC52xx_PSC_SR_RB) ) {
                        
                        if (status & MPC52xx_PSC_SR_RB) {
-                               *tty->flip.flag_buf_ptr = TTY_BREAK;
+                               flag = TTY_BREAK;
                                uart_handle_break(port);
                        } else if (status & MPC52xx_PSC_SR_PE)
-                               *tty->flip.flag_buf_ptr = TTY_PARITY;
+                               flag = TTY_PARITY;
                        else if (status & MPC52xx_PSC_SR_FE)
-                               *tty->flip.flag_buf_ptr = TTY_FRAME;
-                       if (status & MPC52xx_PSC_SR_OE) {
-                               /*
-                                * Overrun is special, since it's
-                                * reported immediately, and doesn't
-                                * affect the current character
-                                */
-                               if (tty->flip.count < (TTY_FLIPBUF_SIZE-1)) {
-                                       tty->flip.flag_buf_ptr++;
-                                       tty->flip.char_buf_ptr++;
-                                       tty->flip.count++;
-                               }
-                               *tty->flip.flag_buf_ptr = TTY_OVERRUN;
-                       }
+                               flag = TTY_FRAME;
 
                        /* Clear error condition */
                        out_8(&PSC(port)->command,MPC52xx_PSC_RST_ERR_STAT);
 
                }
-
-               tty->flip.char_buf_ptr++;
-               tty->flip.flag_buf_ptr++;
-               tty->flip.count++;
-
+               tty_insert_flip_char(tty, ch, flag);
+               if (status & MPC52xx_PSC_SR_OE) {
+                       /*
+                        * Overrun is special, since it's
+                        * reported immediately, and doesn't
+                        * affect the current character
+                        */
+                       tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+               }
        }
 
        tty_flip_buffer_push(tty);
@@ -617,15 +602,14 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count)
                udelay(1);
 
        /* Write all the chars */
-       for ( i=0 ; i<count ; i++ ) {
-       
-               /* Send the char */
-               out_8(&psc->mpc52xx_psc_buffer_8, *s);
-
+       for (i = 0; i < count; i++, s++) {
                /* Line return handling */
-               if ( *s++ == '\n' )
+               if (*s == '\n')
                        out_8(&psc->mpc52xx_psc_buffer_8, '\r');
                
+               /* Send the char */
+               out_8(&psc->mpc52xx_psc_buffer_8, *s);
+
                /* Wait the TX buffer to be empty */
                j = 20000;      /* Maximum wait */      
                while (!(in_be16(&psc->mpc52xx_psc_status) & 
@@ -708,7 +692,6 @@ static struct uart_driver mpc52xx_uart_driver = {
        .owner          = THIS_MODULE,
        .driver_name    = "mpc52xx_psc_uart",
        .dev_name       = "ttyPSC",
-       .devfs_name     = "ttyPSC",
        .major          = SERIAL_PSC_MAJOR,
        .minor          = SERIAL_PSC_MINOR,
        .nr             = MPC52xx_PSC_MAXNUM,
@@ -743,8 +726,7 @@ mpc52xx_uart_probe(struct platform_device *dev)
 
        spin_lock_init(&port->lock);
        port->uartclk   = __res.bi_ipbfreq / 2; /* Look at CTLR doc */
-       port->fifosize  = 255; /* Should be 512 ! But it can't be */
-                              /* stored in a unsigned char       */
+       port->fifosize  = 512;
        port->iotype    = UPIO_MEM;
        port->flags     = UPF_BOOT_AUTOCONF |
                          ( uart_console(port) ? 0 : UPF_IOREMAP );