patch-2.1.49 linux/drivers/char/hfmodem/gentbl.c

• Lines: 70
• Date: Tue Aug 5 09:48:55 1997
• Orig file: v2.1.48/linux/drivers/char/hfmodem/gentbl.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.48/linux/drivers/char/hfmodem/gentbl.c linux/drivers/char/hfmodem/gentbl.c
@@ -0,0 +1,69 @@
+/*****************************************************************************/
+
+/*
+ *      gentbl.c  --  Linux soundcard HF FSK driver,
+ *                    Table generator.
+ *
+ *      Copyright (C) 1997  Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *        Swiss Federal Institute of Technology (ETH), Electronics Lab
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ */
+
+/*****************************************************************************/
+      
+#include <linux/hfmodem.h>
+#include <math.h>
+#include <stdio.h>
+
+/* --------------------------------------------------------------------- */
+
+#define SINTABBITS  9
+#define SINTABSIZE  (1<<SINTABBITS)
+
+/* --------------------------------------------------------------------- */
+
+static void gensintbl(void)
+{
+	int i;
+
+	printf("#define SINTABBITS %d\n#define SINTABSIZE  (1<<SINTABBITS)\n"
+	       "\nstatic short isintab[SINTABSIZE+SINTABSIZE/4] = {\n\t", SINTABBITS);
+	for (i = 0; i < (SINTABSIZE+SINTABSIZE/4); i++) {
+		printf("%6d", (int)(32767.0 * sin(2.0 * M_PI / SINTABSIZE * i)));
+		if (i < (SINTABSIZE+SINTABSIZE/4)-1) {
+			if ((i & 7) == 7)
+				printf(",\n\t");
+			else
+				printf(",");
+		}
+	}
+	printf("\n};\n\n");
+}
+
+/* --------------------------------------------------------------------- */
+
+int main(int argc, char *argv[])
+{
+	printf("/*\n * This file is automatically generated by %s, DO NOT EDIT!\n*/\n\n",
+	       argv[0]);
+	gensintbl();
+	exit(0);
+}
+
+/* --------------------------------------------------------------------- */
+