iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Input: serio - allow registered drivers to get status flag

Browse Source 
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>
This commit is contained in:
David Engraf 2011-01-20 23:05:17 -08:00 committed by Dmitry Torokhov
parent b0f05aadf1
commit 48c27016e1
1 changed files with 20 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/input/serio/serport.c
View File

@ -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);