diff options
| author | Kenji Aoyama <aoyama@cvs.openbsd.org> | 2021-09-17 12:02:32 +0000 |
|---|---|---|
| committer | Kenji Aoyama <aoyama@cvs.openbsd.org> | 2021-09-17 12:02:32 +0000 |
| commit | 802ce3b4d5d2814edfd4266a88c36247eeca0427 (patch) | |
| tree | acf101bb5a984a447fe8ef2b9f5d36c433e0e2b7 /sys | |
| parent | a8ce551f6bb01100afb3c7ca03336979fc8a4aa6 (diff) | |
Sync 1bpp initial palette setting with NetBSD/luna68k.
Tested by me on 1bpp framebuffer got recently.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/luna88k/dev/lunafb.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/sys/arch/luna88k/dev/lunafb.c b/sys/arch/luna88k/dev/lunafb.c index f7c56172f60..5b7a9320c6c 100644 --- a/sys/arch/luna88k/dev/lunafb.c +++ b/sys/arch/luna88k/dev/lunafb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: lunafb.c,v 1.27 2020/05/25 09:55:48 jsg Exp $ */ +/* $OpenBSD: lunafb.c,v 1.28 2021/09/17 12:02:31 aoyama Exp $ */ /* $NetBSD: lunafb.c,v 1.7.6.1 2002/08/07 01:48:34 lukem Exp $ */ /*- @@ -599,7 +599,27 @@ omfb_set_default_cmap(struct om_hwdevconfig *dc) { int i; - if ((hwplanebits == 1) || (hwplanebits == 4)) { + if (hwplanebits == 1) { + struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; + /* + * On 1bpp framebuffer, only plane P0 has framebuffer memory + * and other planes seems pulled up, i.e. always 1. + * Set white only for a palette (P0,P1,P2,P3) = (1,1,1,1). + */ + odac->bt_addr = 0; + for (i = 0; i < 15; i++) { + odac->bt_cmap = dc->dc_cmap.r[i] = 0; + odac->bt_cmap = dc->dc_cmap.g[i] = 0; + odac->bt_cmap = dc->dc_cmap.b[i] = 0; + } + /* + * The B/W video connector is connected to IOG of Bt454, + * and IOR and IOB are unused. + */ + odac->bt_cmap = dc->dc_cmap.r[15] = 0; + odac->bt_cmap = dc->dc_cmap.g[15] = 255; + odac->bt_cmap = dc->dc_cmap.b[15] = 0; + } else if (hwplanebits == 4) { struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; odac->bt_addr = 0; |