BSD 4_3_Tahoe development

Work on file usr/src/new/X/libibm/libsrc/apa8c.c

Synthesized-from: CSRG/cd2/4.3tahoe

diff --git a/usr/src/new/X/libibm/libsrc/apa8c.c b/usr/src/new/X/libibm/libsrc/apa8c.c
new file mode 100644 (file)
index 0000000..c8f4ef0
--- /dev/null
+++ b/usr/src/new/X/libibm/libsrc/apa8c.c
@@ -0,0 +1,117 @@
+#ifndef lint
+static char *rcsid_apa8c_c = "$Header: apa8c.c,v 10.1 86/11/19 10:39:58 jg Exp $";
+#endif lint
+/* apa8c.c - APA8C controller initialization
+ *
+ *     apa8c_init              APA8C initialization routine
+ *     apa8c_set_colors        set defualt colors
+ *
+ *     Author:
+ *             Scott Bates
+ *             Brown University
+ *             IRIS, Box 1946
+ *             Providence, RI 02912
+ *
+ *
+ *             Copyright (c) 1986 Brown University
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies, and that both
+ * that copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Brown University not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. Brown University makes no
+ * representations about the suitability of this software for any purpose.
+ * It is provided "as-is" without express or implied warranty.
+ */
+
+#include "private.h"
+#include "bitblt.h"
+#include "apa8c.h"
+
+/*
+ * Initialize APA8C
+ */
+
+apa8c_init()
+{
+       u_short tmp;
+
+#ifdef TRACE_X
+        fprintf (stderr, "In apa8c_init\n");
+        fflush (stderr);
+#endif TRACE_X
+
+        /*
+         * Initialize (reset) the APA8C screen
+         */
+
+       /*
+        * Set up the write and data mask.
+        */
+
+       SET_APA8C_WRITEMASK(NOMASK);
+       SET_APA8C_DATAMASK(HIDDEN_DM);
+
+       /*
+        * Set up the APA8C control register to use its system read/write
+        * calls in the X direction.
+        */
+
+       SET_APA8C_FC(DCR_VEN | DCR_SEN | DCR_SWR | DCR_X | HIDDEN_FUNC);
+
+       /*
+        * Set up the color plane select register and foreground/background
+        * registers.
+        */
+
+       *(u_short *)CPS_REG = DEFAULT_CPS;
+       *(u_short *)FGBG_REG = DEFAULT_FGBG;
+
+       /*
+        * Set default colors in Video Look-up Table.
+        */
+
+       apa8c_set_colors();
+
+       /*
+        * Test for the APA8C screen.
+        */
+
+       tmp = *(u_short *)SCREEN_BASE;
+       *(u_short *)SCREEN_BASE = 0x0F0F;
+       if (*(u_short *)SCREEN_BASE != 0x0F0F) {
+               /*
+                * Log error and exit
+                */
+
+               DeviceError("apa8 color not found !!");
+               exit(2);
+       }
+       *(u_short*)SCREEN_BASE = tmp;
+}
+
+/*
+ * Sets default foreground and background colors in 
+ * video look-up table. FG_COLOR and BG_COLOR are default 
+ * colors. They are defined in apa8c.h
+ */
+
+static
+apa8c_set_colors()
+{
+       register i;
+
+#ifdef TRACE_X
+        fprintf (stderr, "In apa8c_set_colors\n");
+        fflush (stderr);
+#endif TRACE_X
+
+       for (i = 0; i < VLT_SIZE; i++) {
+               if (i == 15)
+                       *(u_short *)VLT_REG = (u_short) (i | FG_COLOR);
+               else
+                       *(u_short *)VLT_REG = (u_short) (i | BG_COLOR);
+       }
+}