diff options
Diffstat (limited to '')
| -rw-r--r-- | drv_generic_parport.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drv_generic_parport.c b/drv_generic_parport.c index c98b085..f008c46 100644 --- a/drv_generic_parport.c +++ b/drv_generic_parport.c @@ -1,4 +1,4 @@ -/* $Id: drv_generic_parport.c,v 1.8 2004/06/26 12:04:59 reinelt Exp $ +/* $Id: drv_generic_parport.c,v 1.9 2004/09/18 08:22:59 reinelt Exp $ * * generic driver helper for serial and parport access * @@ -23,6 +23,9 @@ * * * $Log: drv_generic_parport.c,v $ + * Revision 1.9 2004/09/18 08:22:59 reinelt + * drv_generic_parport_status() to read status lines + * * Revision 1.8 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... @@ -334,6 +337,33 @@ void drv_generic_parport_direction (const int direction) } +unsigned char drv_generic_parport_status (void) +{ + unsigned char mask = + PARPORT_STATUS_ERROR | + PARPORT_STATUS_SELECT | + PARPORT_STATUS_PAPEROUT | + PARPORT_STATUS_ACK | + PARPORT_STATUS_BUSY; + + unsigned char data; + +#ifdef WITH_PPDEV + if (PPdev) { + ioctl (PPfd, PPRSTATUS, &data); + } else +#endif + { + data = inb (Port+1); + } + + /* clear unused bits */ + data &= mask; + + return data; +} + + void drv_generic_parport_control (const unsigned char mask, const unsigned char value) { unsigned char val; |