patch-2.1.49 linux/drivers/char/hfmodem/gentbl.c
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- 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);
+}
+
+/* --------------------------------------------------------------------- */
+
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