[src/trunk]: src/sys/dev/ic register definitions for Brooktree Bt461 and Bt46...

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

details:   https://anonhg.NetBSD.org/src/rev/1e7d596f2145
branches:  trunk
changeset: 755824:1e7d596f2145
user:      macallan <macallan%NetBSD.org@localhost>
date:      Thu Jun 24 03:30:36 2010 +0000

description:
register definitions for Brooktree Bt461 and Bt462 RAMDACs, used on CG12 and
others

diffstat:

 sys/dev/ic/bt462reg.h |  88 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 88 insertions(+), 0 deletions(-)

diffs (92 lines):

diff -r 438ec3189b8b -r 1e7d596f2145 sys/dev/ic/bt462reg.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/ic/bt462reg.h     Thu Jun 24 03:30:36 2010 +0000
@@ -0,0 +1,88 @@
+/*     $NetBSD: bt462reg.h,v 1.1 2010/06/24 03:30:36 macallan Exp $ */
+
+/*-
+ * Copyright (c) 2010 Michael Lorenz
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * register definitions for the Bt461/Bt462 RAMDAC
+ *
+ * There are four registers, how exactly to access them depends on the host so 
+ * we don't provide constants for them. All registers are 8 bit wide:
+ * - register 0 provides the lower 8 index bits
+ * - register 1 provides the upper 2 index bits
+ * - register 2 accesses the alternate colour map ( 256 entries ), overlay
+ *   colour map ( 32 enttries ) and control registers
+ * - register 3 accesses the main colour map ( 1024 entries )
+ */
+ 
+#ifndef BT462REG_H
+#define BT462REG_H
+
+/* offsets for register 2 */
+#define BT462_ALT_CMAP         0x0000
+#define BT462_OVL_CMAP         0x0100
+#define BT462_ID               0x0200
+       #define ID_BT461        0x4d
+       #define ID_BT462        0x4c
+
+#define BT462_CMD_0            0x0201
+       #define BT462_C0_BLINK_16_48    0x00
+       #define BT462_C0_BLINK_16_16    0x04
+       #define BT462_C0_BLINK_32_32    0x08
+       #define BT462_C0_BLINK_64_64    0x0c
+       #define BT462_C0_ALT_ENABLE     0x10
+       #define BT462_C0_OVL_OPAQUE     0x20    /* use ovl 0, not cmap */
+       #define BT462_C0_MULT_3_1       0x00
+       #define BT462_C0_MULT_4_1       0x40
+       #define BT462_C0_MULT_5_1       0xc0
+
+#define BT462_CMD_1            0x0202
+       #define BT462_C1_PAN_0          0x00
+       #define BT462_C1_PAN_1          0x20
+       #define BT462_C1_PAN_2          0x40
+       #define BT462_C1_PAN_3          0x80
+       #define BT462_C1_PAN_4          0xa0
+
+#define BT462_CMD_2            0x0203
+       #define BT462_C2_TEST_ENABLE    0x01
+       #define BT462_C2_UNDERLAY_EN    0x04    /* Bt462 only */
+       #define BT462_C2_PLL_USE_BLANK  0x08    /* SYNC otherwise */
+       #define BT462_C2_LOAD_ALWAYS    0x00
+       #define BT462_C2_LOAD_ON_RED    0x10
+       #define BT462_C2_LOAD_ON_GREEN  0x20
+       #define BT462_C2_LOAD_ON_BLUE   0x30
+       #define BT462_C2_PEDESTAL_EN    0x40
+       #define BT462_C2_SYNC_ENABLE    0x80
+
+#define BT462_PIXEL_READ_MSK_L 0x0204
+#define BT462_PIXEL_READ_MSK_H 0x0205
+#define BT462_PIXEL_BLNK_MSK_L 0x0206
+#define BT462_PIXEL_BLNK_MSK_H 0x0207
+#define BT462_OVL_READ_MSK     0x0208
+#define BT462_OVL_BLNK_MSK     0x0209
+#define BT462_TEST             0x020c
+
+#endif /* BT462REG_H */