Input: serio - allow registered drivers to get status flag

Parse and pass the status byte information to the registered serio
drivers as well as the data bytes.

Signed-off-by: David Engraf<david.engraf@sysgo.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 20 insertions, 4 deletions

diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 6e362de3f412..8755f5f3ad37 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -116,14 +116,15 @@ static void serport_ldisc_close(struct tty_struct *tty)
 
 /*
  * serport_ldisc_receive() is called by the low level tty driver when characters
- * are ready for us. We forward the characters, one by one to the 'interrupt'
- * routine.
+ * are ready for us. We forward the characters and flags, one by one to the
+ * 'interrupt' routine.
  */
 
 static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
 {
         struct serport *serport = (struct serport*) tty->disc_data;
         unsigned long flags;
+        unsigned int ch_flags;
         int i;
 
         spin_lock_irqsave(&serport->lock, flags);
@@ -131,8 +132,23 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
         if (!test_bit(SERPORT_ACTIVE, &serport->flags))
                 goto out;
 
-        for (i = 0; i < count; i++)
-                serio_interrupt(serport->serio, cp[i], 0);
+        for (i = 0; i < count; i++) {
+                switch (fp[i]) {
+                case TTY_FRAME:
+                        ch_flags = SERIO_FRAME;
+                        break;
+
+                case TTY_PARITY:
+                        ch_flags = SERIO_PARITY;
+                        break;
+
+                default:
+                        ch_flags = 0;
+                        break;
+                }
+
+                serio_interrupt(serport->serio, cp[i], ch_flags);
+        }
 
 out:
         spin_unlock_irqrestore(&serport->lock, flags);