[src/trunk]: src/sys/dev/wscons add vcons_hard_switch, for switching w/o call...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c53a3b0751d4
branches:  trunk
changeset: 762260:c53a3b0751d4
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Fri Feb 18 13:56:11 2011 +0000

description:
add vcons_hard_switch, for switching w/o callouts (eg. entering ddb)

diffstat:

 sys/dev/wscons/wsdisplay_vcons.c    |  22 ++++++++++++++++++++--
 sys/dev/wscons/wsdisplay_vconsvar.h |   3 ++-
 2 files changed, 22 insertions(+), 3 deletions(-)

diffs (56 lines):

diff -r 52a9d966c34f -r c53a3b0751d4 sys/dev/wscons/wsdisplay_vcons.c
--- a/sys/dev/wscons/wsdisplay_vcons.c  Fri Feb 18 13:56:03 2011 +0000
+++ b/sys/dev/wscons/wsdisplay_vcons.c  Fri Feb 18 13:56:11 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: wsdisplay_vcons.c,v 1.23 2011/02/09 13:19:18 jmcneill Exp $ */
+/*     $NetBSD: wsdisplay_vcons.c,v 1.24 2011/02/18 13:56:11 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2005, 2006 Michael Lorenz
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: wsdisplay_vcons.c,v 1.23 2011/02/09 13:19:18 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: wsdisplay_vcons.c,v 1.24 2011/02/18 13:56:11 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1479,3 +1479,21 @@
                atomic_inc_uint(&scr->scr_dirty);
 #endif
 }
+
+void
+vcons_hard_switch(struct vcons_screen *scr)
+{
+       struct vcons_data *vd = scr->scr_vd;
+       struct vcons_screen *oldscr = vd->active;
+
+       if (oldscr) {
+               SCREEN_INVISIBLE(oldscr);
+               oldscr->scr_ri.ri_flg &= ~RI_CURSOR;
+       }
+       SCREEN_VISIBLE(scr);
+       vd->active = scr;
+       vd->wanted = NULL;
+
+       if (vd->show_screen_cb != NULL)
+               vd->show_screen_cb(scr);
+}
diff -r 52a9d966c34f -r c53a3b0751d4 sys/dev/wscons/wsdisplay_vconsvar.h
--- a/sys/dev/wscons/wsdisplay_vconsvar.h       Fri Feb 18 13:56:03 2011 +0000
+++ b/sys/dev/wscons/wsdisplay_vconsvar.h       Fri Feb 18 13:56:11 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: wsdisplay_vconsvar.h,v 1.17 2011/02/09 13:19:19 jmcneill Exp $ */
+/*     $NetBSD: wsdisplay_vconsvar.h,v 1.18 2011/02/18 13:56:11 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2005, 2006 Michael Lorenz
@@ -177,5 +177,6 @@
 
 void   vcons_enable_polling(struct vcons_data *);
 void   vcons_disable_polling(struct vcons_data *);
+void   vcons_hard_switch(struct vcons_screen *);
 
 #endif /* _WSDISPLAY_VCONS_H_ */