tree 78b3c1eb2cae67a9d3adf1076cc031d93b6464f8
parent 5d5de1a068efffb0dcc03235e6fa258201096f02
author Hendrik Brueckner <brueckner@linux.vnet.ibm.com> 1386268119 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1387201069 +0100

s390/sclp_early: Add function to detect sclp console capabilities

Add SCLP console detect functions to encapsulate detection of SCLP console
capabilities, for example, VT220 support.  Reuse the sclp_send/receive masks
that were stored by the most recent sclp_set_event_mask() call to prevent
unnecessary SCLP calls.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>