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Add kern.vt.suspendswitch tunable. This will allow to disable default behavior

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(switch to VT0 on suspend, switch back on resume).
If 0 - disabled, other values - enabled.

Requested by:	jhb
Sponsored by:   The FreeBSD Foundation
This commit is contained in:
ray 2013-11-11 22:07:56 +00:00
parent 2edf4bd36a
commit 6c7023e93f
1 changed files with 5 additions and 0 deletions
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5
sys/dev/vt/vt_core.c
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@ -107,6 +107,7 @@ int sc_txtmouse_no_retrace_wait;
static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "Newcons parameters");
VT_SYSCTL_INT(debug, 0, "Newcons debug level");
VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode");
VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend");
static unsigned int vt_unit = 0;
static MALLOC_DEFINE(M_VT, "vt", "vt device");
@ -1603,6 +1604,8 @@ void
vt_suspend()
{
if (vt_suspendswitch == 0)
return;
/* Save current window. */
main_vd->vd_savedwindow = main_vd->vd_curwindow;
/* Ask holding process to free window and switch to console window */
@ -1613,6 +1616,8 @@ void
vt_resume()
{
if (vt_suspendswitch == 0)
return;
/* Switch back to saved window */
if (main_vd->vd_savedwindow != NULL)
vt_proc_window_switch(main_vd->vd_savedwindow);