[PATCH] TTY layer buffering revamp

[deliverable/linux.git] / drivers / char / synclink_gt.c

diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 2b9cde94e2f746ad88d1f8a75fb2305270479f95..79c81def4104f207b7a4ff9d7efc21ef1b6720ea 100644 (file)
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -75,7 +75,6 @@
 #include <linux/workqueue.h>
 #include <linux/hdlc.h>
 
-#include <asm/serial.h>
 #include <asm/system.h>
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -1750,6 +1749,9 @@ static void rx_async(struct slgt_info *info)
        unsigned char status;
        struct slgt_desc *bufs = info->rbufs;
        int i, count;
+       int chars = 0;
+       int stat;
+       unsigned char ch;
 
        start = end = info->rbuf_current;
 
@@ -1761,16 +1763,15 @@ static void rx_async(struct slgt_info *info)
                DBGDATA(info, p, count, "rx");
 
                for(i=0 ; i < count; i+=2, p+=2) {
-                       if (tty) {
-                               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                                       tty_flip_buffer_push(tty);
-                               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                                       break;
-                               *tty->flip.char_buf_ptr = *p;
-                               *tty->flip.flag_buf_ptr = 0;
+                       if (tty && chars) {
+                               tty_flip_buffer_push(tty);
+                               chars = 0;
                        }
+                       ch = *p;
                        icount->rx++;
 
+                       stat = 0;
+
                        if ((status = *(p+1) & (BIT9 + BIT8))) {
                                if (status & BIT9)
                                        icount->parity++;
@@ -1779,17 +1780,14 @@ static void rx_async(struct slgt_info *info)
                                /* discard char if tty control flags say so */
                                if (status & info->ignore_status_mask)
                                        continue;
-                               if (tty) {
-                                       if (status & BIT9)
-                                               *tty->flip.flag_buf_ptr = TTY_PARITY;
-                                       else if (status & BIT8)
-                                               *tty->flip.flag_buf_ptr = TTY_FRAME;
-                               }
+                               if (status & BIT9)
+                                       stat = TTY_PARITY;
+                               else if (status & BIT8)
+                                       stat = TTY_FRAME;
                        }
                        if (tty) {
-                               tty->flip.flag_buf_ptr++;
-                               tty->flip.char_buf_ptr++;
-                               tty->flip.count++;
+                               tty_insert_flip_char(tty, ch, stat);
+                               chars++;
                        }
                }
 
@@ -1812,7 +1810,7 @@ static void rx_async(struct slgt_info *info)
                        break;
        }
 
-       if (tty && tty->flip.count)
+       if (tty && chars)
                tty_flip_buffer_push(tty);
 }
 
@@ -2030,7 +2028,7 @@ static void isr_serial(struct slgt_info *info)
                        if (info->tty) {
                                if (!(status & info->ignore_status_mask)) {
                                        if (info->read_status_mask & MASK_BREAK) {
-                                               *info->tty->flip.flag_buf_ptr = TTY_BREAK;
+                                               tty_insert_flip_char(info->tty, 0, TTY_BREAK);
                                                if (info->flags & ASYNC_SAK)
                                                        do_SAK(info->tty);
                                        }