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| author | nyan <nyan@FreeBSD.org> | 2000-03-29 12:29:27 +0000 |
|---|---|---|
| committer | nyan <nyan@FreeBSD.org> | 2000-03-29 12:29:27 +0000 |
| commit | f92fa6a3e6d429f3f64ab2d4caaedaa7024612a6 (patch) | |
| tree | 6f793df0bc95e89938376af913ab562f951f4fa5 /sys/pc98/cbus/gdc.c | |
| parent | ed031b005eaa9ea1bc4a341fcae0790ea6050813 (diff) | |
| download | FreeBSD-src-f92fa6a3e6d429f3f64ab2d4caaedaa7024612a6.zip FreeBSD-src-f92fa6a3e6d429f3f64ab2d4caaedaa7024612a6.tar.gz | |
- Supported display suspended mode.
- Switch on/off not only text screen but also graphic screen.
Submitted by: chi@bd.mbn.or.jp (Chiharu Shibata)
Diffstat (limited to 'sys/pc98/cbus/gdc.c')
| -rw-r--r-- | sys/pc98/cbus/gdc.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sys/pc98/cbus/gdc.c b/sys/pc98/cbus/gdc.c index 26dcb43..504e9fd 100644 --- a/sys/pc98/cbus/gdc.c +++ b/sys/pc98/cbus/gdc.c @@ -942,6 +942,7 @@ static int gdc_blank_display(video_adapter_t *adp, int mode) { int s; + static int standby = 0; if (!gdc_init_done) return ENXIO; @@ -950,10 +951,9 @@ gdc_blank_display(video_adapter_t *adp, int mode) switch (mode) { case V_DISPLAY_SUSPEND: case V_DISPLAY_STAND_BY: - /* - * FIXME: I don't know how to put the display into `suspend' - * or `stand-by' mode via GDC... - */ + outb(0x09a2, 0x80 | 0x40); /* V/H-SYNC mask */ + if (inb(0x09a2) == (0x80 | 0x40)) + standby = 1; /* FALL THROUGH */ case V_DISPLAY_BLANK: @@ -965,7 +965,7 @@ gdc_blank_display(video_adapter_t *adp, int mode) } else { while (!(inb(TEXT_GDC) & 0x20)) /* V-SYNC wait */ ; - outb(TEXT_GDC + 2, 0xc); /* text off */ + outb(TEXT_GDC + 8, 0x0e); /* DISP off */ } break; @@ -978,7 +978,11 @@ gdc_blank_display(video_adapter_t *adp, int mode) } else { while (!(inb(TEXT_GDC) & 0x20)) /* V-SYNC wait */ ; - outb(TEXT_GDC + 2, 0xd); /* text on */ + outb(TEXT_GDC + 8, 0x0f); /* DISP on */ + } + if (standby) { + outb(0x09a2, 0x00); /* V/H-SYNC unmask */ + standby = 0; } break; } |
