patch-2.1.71 linux/drivers/net/soundmodem/gentbl.c
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- Lines: 677
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.1.70/linux/drivers/net/soundmodem/gentbl.c
- Orig date:
Mon Aug 11 14:47:04 1997
diff -u --recursive --new-file v2.1.70/linux/drivers/net/soundmodem/gentbl.c linux/drivers/net/soundmodem/gentbl.c
@@ -1,676 +0,0 @@
-/*****************************************************************************/
-
-/*
- * gentbl.c -- soundcard radio modem driver table generator.
- *
- * Copyright (C) 1996 Thomas Sailer (sailer@ife.ee.ethz.ch)
- *
- * 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.
- *
- * Please note that the GPL allows you to use the driver, NOT the radio.
- * In order to use the radio, you need a license from the communications
- * authority of your country.
- *
- */
-
-#include <stdio.h>
-#include <math.h>
-#include <string.h>
-
-/* -------------------------------------------------------------------- */
-
-static void gentbl_offscostab(FILE *f, unsigned int nbits)
-{
- int i;
-
- fprintf(f, "\n/*\n * small cosine table in U8 format\n */\n"
- "#define OFFSCOSTABBITS %u\n"
- "#define OFFSCOSTABSIZE (1<<OFFSCOSTABBITS)\n\n",
- nbits);
- fprintf(f, "static unsigned char offscostab[OFFSCOSTABSIZE] = {\n\t");
- for (i = 0; i < (1<<nbits); i++) {
- fprintf(f, "%4u", (int)
- (128+127.0*cos(i*2.0*M_PI/(1<<nbits))));
- if (i < (1<<nbits)-1)
- fprintf(f, "%s", (i & 7) == 7 ? ",\n\t" : ",");
- }
- fprintf(f, "\n};\n\n"
- "#define OFFSCOS(x) offscostab[((x)>>%d)&0x%x]\n\n",
- 16-nbits, (1<<nbits)-1);
-}
-
-/* -------------------------------------------------------------------- */
-
-static void gentbl_costab(FILE *f, unsigned int nbits)
-{
- int i;
-
- fprintf(f, "\n/*\n * more accurate cosine table\n */\n\n"
- "static const short costab[%d] = {", (1<<nbits));
- for (i = 0; i < (1<<nbits); i++) {
- if (!(i & 7))
- fprintf(f, "\n\t");
- fprintf(f, "%6d", (int)(32767.0*cos(i*2.0*M_PI/(1<<nbits))));
- if (i != ((1<<nbits)-1))
- fprintf(f, ", ");
- }
- fprintf(f, "\n};\n\n#define COS(x) costab[((x)>>%d)&0x%x]\n"
- "#define SIN(x) COS((x)+0xc000)\n\n", 16-nbits,
- (1<<nbits)-1);
-}
-
-/* -------------------------------------------------------------------- */
-
-#define AFSK12_SAMPLE_RATE 9600
-#define AFSK12_TX_FREQ_LO 1200
-#define AFSK12_TX_FREQ_HI 2200
-#define AFSK12_CORRLEN 8
-
-static void gentbl_afsk1200(FILE *f)
-{
- int i, v, sum;
-
-#define ARGLO(x) 2.0*M_PI*(double)x*(double)AFSK12_TX_FREQ_LO/(double)AFSK12_SAMPLE_RATE
-#define ARGHI(x) 2.0*M_PI*(double)x*(double)AFSK12_TX_FREQ_HI/(double)AFSK12_SAMPLE_RATE
-
- fprintf(f, "\n/*\n * afsk1200 specific tables\n */\n"
- "#define AFSK12_SAMPLE_RATE %u\n"
- "#define AFSK12_TX_FREQ_LO %u\n"
- "#define AFSK12_TX_FREQ_HI %u\n"
- "#define AFSK12_CORRLEN %u\n\n",
- AFSK12_SAMPLE_RATE, AFSK12_TX_FREQ_LO,
- AFSK12_TX_FREQ_HI, AFSK12_CORRLEN);
- fprintf(f, "static const int afsk12_tx_lo_i[] = {\n\t");
- for(sum = i = 0; i < AFSK12_CORRLEN; i++) {
- sum += (v = 127.0*cos(ARGLO(i)));
- fprintf(f, " %4i%c", v, (i < AFSK12_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK12_TX_LO_I %d\n\n"
- "static const int afsk12_tx_lo_q[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK12_CORRLEN; i++) {
- sum += (v = 127.0*sin(ARGLO(i)));
- fprintf(f, " %4i%c", v, (i < AFSK12_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK12_TX_LO_Q %d\n\n"
- "static const int afsk12_tx_hi_i[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK12_CORRLEN; i++) {
- sum += (v = 127.0*cos(ARGHI(i)));
- fprintf(f, " %4i%c", v, (i < AFSK12_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK12_TX_HI_I %d\n\n"
- "static const int afsk12_tx_hi_q[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK12_CORRLEN; i++) {
- sum += (v = 127.0*sin(ARGHI(i)));
- fprintf(f, " %4i%c", v, (i < AFSK12_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK12_TX_HI_Q %d\n\n", sum);
-#undef ARGLO
-#undef ARGHI
-}
-
-/* -------------------------------------------------------------------- */
-
-static const float fsk96_tx_coeff_4[32] = {
- -0.001152, 0.000554, 0.002698, 0.002753,
- -0.002033, -0.008861, -0.008002, 0.006607,
- 0.023727, 0.018905, -0.018056, -0.057957,
- -0.044368, 0.055683, 0.207667, 0.322048,
- 0.322048, 0.207667, 0.055683, -0.044368,
- -0.057957, -0.018056, 0.018905, 0.023727,
- 0.006607, -0.008002, -0.008861, -0.002033,
- 0.002753, 0.002698, 0.000554, -0.001152
-};
-
-static const float fsk96_tx_coeff_5[40] = {
- -0.001009, -0.000048, 0.001376, 0.002547,
- 0.002061, -0.001103, -0.005795, -0.008170,
- -0.004017, 0.006924, 0.018225, 0.019238,
- 0.002925, -0.025777, -0.048064, -0.039683,
- 0.013760, 0.104144, 0.200355, 0.262346,
- 0.262346, 0.200355, 0.104144, 0.013760,
- -0.039683, -0.048064, -0.025777, 0.002925,
- 0.019238, 0.018225, 0.006924, -0.004017,
- -0.008170, -0.005795, -0.001103, 0.002061,
- 0.002547, 0.001376, -0.000048, -0.001009
-};
-
-#define HAMMING(x) (0.54-0.46*cos(2*M_PI*(x)));
-
-static inline float hamming(float x)
-{
- return 0.54-0.46*cos(2*M_PI*x);
-}
-
-static inline float sinc(float x)
-{
- if (x == 0)
- return 1;
- x *= M_PI;
- return sin(x)/x;
-}
-
-static void gentbl_fsk9600(FILE *f)
-{
- int i, j, k, l, m;
- float s;
- float c[44];
- float min, max;
-
- fprintf(f, "\n/*\n * fsk9600 specific tables\n */\n");
- min = max = 0;
- memset(c, 0, sizeof(c));
-#if 0
- memcpy(c+2, fsk96_tx_coeff_4, sizeof(fsk96_tx_coeff_4));
-#else
- for (i = 0; i < 29; i++)
- c[3+i] = sinc(1.2*((i-14.0)/4.0))*hamming(i/28.0)/3.5;
-#endif
- fprintf(f, "static unsigned char fsk96_txfilt_4[] = {\n\t");
- for (i = 0; i < 4; i++) {
- for (j = 0; j < 256; j++) {
- for (k = 1, s = 0, l = i; k < 256; k <<= 1) {
- if (j & k) {
- for (m = 0; m < 4; m++, l++)
- s += c[l];
- } else {
- for (m = 0; m < 4; m++, l++)
- s -= c[l];
- }
- }
- s *= 0.75;
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 3 || j < 255)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "fsk9600: txfilt4: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
- min = max = 0;
- memset(c, 0, sizeof(c));
-#if 0
- memcpy(c+2, fsk96_tx_coeff_5, sizeof(fsk96_tx_coeff_5));
-#else
- for (i = 0; i < 36; i++)
- c[4+i] = sinc(1.2*((i-17.5)/5.0))*hamming(i/35.0)/4.5;
-#endif
- fprintf(f, "static unsigned char fsk96_txfilt_5[] = {\n\t");
- for (i = 0; i < 5; i++) {
- for (j = 0; j < 256; j++) {
- for (k = 1, s = 0, l = i; k < 256; k <<= 1) {
- if (j & k) {
- for (m = 0; m < 5; m++, l++)
- s += c[l];
- } else {
- for (m = 0; m < 5; m++, l++)
- s -= c[l];
- }
- }
- s *= 0.75;
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 4 || j < 255)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "fsk9600: txfilt5: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
-}
-
-/* -------------------------------------------------------------------- */
-
-#define AFSK26_SAMPLERATE 16000
-
-#define AFSK26_NUMCAR 2
-#define AFSK26_FIRSTCAR 2000
-#define AFSK26_MSK_LEN 6
-#define AFSK26_RXOVER 2
-
-#define AFSK26_DEMCORRLEN (2*AFSK26_MSK_LEN)
-
-#define AFSK26_WINDOW(x) ((1-cos(2.0*M_PI*(x)))/2.0)
-
-#define AFSK26_AMPL(x) (((x)?1.0:0.7))
-
-#undef AFSK26_AMPL
-#define AFSK26_AMPL(x) 1
-
-static void gentbl_afsk2666(FILE *f)
-{
- int i, j, k, l, o, v, sumi, sumq;
- float window[AFSK26_DEMCORRLEN*AFSK26_RXOVER];
- int cfreq[AFSK26_NUMCAR];
-
- fprintf(f, "\n/*\n * afsk2666 specific tables\n */\n"
- "#define AFSK26_DEMCORRLEN %d\n"
- "#define AFSK26_SAMPLERATE %d\n\n", AFSK26_DEMCORRLEN,
- AFSK26_SAMPLERATE);
- fprintf(f, "static const unsigned int afsk26_carfreq[%d] = { ",
- AFSK26_NUMCAR);
- for (i = 0; i < AFSK26_NUMCAR; i++) {
- cfreq[i] = 0x10000*AFSK26_FIRSTCAR/AFSK26_SAMPLERATE+
- 0x10000*i/AFSK26_MSK_LEN/2;
- fprintf(f, "0x%x", cfreq[i]);
- if (i < AFSK26_NUMCAR-1)
- fprintf(f, ", ");
- }
- fprintf(f, " };\n\n");
- for (i = 0; i < AFSK26_DEMCORRLEN*AFSK26_RXOVER; i++)
- window[i] = AFSK26_WINDOW(((float)i)/(AFSK26_DEMCORRLEN*
- AFSK26_RXOVER)) * 127.0;
- fprintf(f, "\nstatic const struct {\n\t"
- "int i[%d];\n\tint q[%d];\n} afsk26_dem_tables[%d][%d] = {\n",
- AFSK26_DEMCORRLEN, AFSK26_DEMCORRLEN, AFSK26_RXOVER, AFSK26_NUMCAR);
- for (o = AFSK26_RXOVER-1; o >= 0; o--) {
- fprintf(f, "\t{\n");
- for (i = 0; i < AFSK26_NUMCAR; i++) {
- j = cfreq[i];
- fprintf(f, "\t\t{{ ");
- for (l = AFSK26_DEMCORRLEN-1, k = (j * o)/AFSK26_RXOVER, sumi = 0; l >= 0;
- l--, k = (k+j)&0xffffu) {
- sumi += (v = AFSK26_AMPL(i)*window[l*AFSK26_RXOVER+o]*
- cos(M_PI*k/32768.0));
- fprintf(f, "%6d%s", v, l ? ", " : " }, { ");
- }
- for (l = AFSK26_DEMCORRLEN-1, k = (j * o)/AFSK26_RXOVER, sumq = 0; l >= 0;
- l--, k = (k+j)&0xffffu) {
- sumq += (v = AFSK26_AMPL(i)*window[l*AFSK26_RXOVER+o]*
- sin(M_PI*k/32768.0));
- fprintf(f, "%6d%s", v, l ? ", " : " }}");
- }
- if (i < 1)
- fprintf(f, ",");
- fprintf(f, "\n#define AFSK26_DEM_SUM_I_%d_%d %d\n"
- "#define AFSK26_DEM_SUM_Q_%d_%d %d\n",
- AFSK26_RXOVER-1-o, i, sumi, AFSK26_RXOVER-1-o, i, sumq);
- }
- fprintf(f, "\t}%s\n", o ? "," : "");
- }
- fprintf(f, "};\n\n");
-}
-
-/* -------------------------------------------------------------------- */
-
-#define ATAN_TABLEN 1024
-
-static void gentbl_atantab(FILE *f)
-{
- int i;
- short x;
-
- fprintf(f, "\n/*\n"
- " * arctan table (indexed by i/q; should really be indexed by i/(i+q)\n"
- " */\n""#define ATAN_TABLEN %d\n\n"
- "static const unsigned short atan_tab[ATAN_TABLEN+2] = {",
- ATAN_TABLEN);
- for (i = 0; i <= ATAN_TABLEN; i++) {
- if (!(i & 7))
- fprintf(f, "\n\t");
- x = atan(i / (float)ATAN_TABLEN) / M_PI * 0x8000;
- fprintf(f, "%6d, ", x);
- }
- fprintf(f, "%6d\n};\n\n", x);
-
-}
-
-/* -------------------------------------------------------------------- */
-
-#define PSK48_TXF_OVERSAMPLING 5
-#define PSK48_TXF_NUMSAMPLES 16
-#define PSK48_RXF_LEN 64
-
-static const float psk48_tx_coeff[80] = {
- -0.000379, -0.000640, -0.000000, 0.000772,
- 0.000543, -0.000629, -0.001187, -0.000000,
- 0.001634, 0.001183, -0.001382, -0.002603,
- -0.000000, 0.003481, 0.002472, -0.002828,
- -0.005215, -0.000000, 0.006705, 0.004678,
- -0.005269, -0.009584, -0.000000, 0.012065,
- 0.008360, -0.009375, -0.017028, -0.000000,
- 0.021603, 0.015123, -0.017229, -0.032012,
- -0.000000, 0.043774, 0.032544, -0.040365,
- -0.084963, -0.000000, 0.201161, 0.374060,
- 0.374060, 0.201161, -0.000000, -0.084963,
- -0.040365, 0.032544, 0.043774, -0.000000,
- -0.032012, -0.017229, 0.015123, 0.021603,
- -0.000000, -0.017028, -0.009375, 0.008360,
- 0.012065, -0.000000, -0.009584, -0.005269,
- 0.004678, 0.006705, -0.000000, -0.005215,
- -0.002828, 0.002472, 0.003481, -0.000000,
- -0.002603, -0.001382, 0.001183, 0.001634,
- -0.000000, -0.001187, -0.000629, 0.000543,
- 0.000772, -0.000000, -0.000640, -0.000379
-};
-
-static const float psk48_rx_coeff[PSK48_RXF_LEN] = {
- -0.000219, 0.000360, 0.000873, 0.001080,
- 0.000747, -0.000192, -0.001466, -0.002436,
- -0.002328, -0.000699, 0.002101, 0.004809,
- 0.005696, 0.003492, -0.001633, -0.007660,
- -0.011316, -0.009627, -0.001780, 0.009712,
- 0.019426, 0.021199, 0.011342, -0.008583,
- -0.030955, -0.044093, -0.036634, -0.002651,
- 0.054742, 0.123101, 0.184198, 0.220219,
- 0.220219, 0.184198, 0.123101, 0.054742,
- -0.002651, -0.036634, -0.044093, -0.030955,
- -0.008583, 0.011342, 0.021199, 0.019426,
- 0.009712, -0.001780, -0.009627, -0.011316,
- -0.007660, -0.001633, 0.003492, 0.005696,
- 0.004809, 0.002101, -0.000699, -0.002328,
- -0.002436, -0.001466, -0.000192, 0.000747,
- 0.001080, 0.000873, 0.000360, -0.000219
-};
-
-static void gentbl_psk4800(FILE *f)
-{
- int i, j, k;
- short x;
-
- fprintf(f, "\n/*\n * psk4800 specific tables\n */\n"
- "#define PSK48_TXF_OVERSAMPLING %d\n"
- "#define PSK48_TXF_NUMSAMPLES %d\n\n"
- "#define PSK48_SAMPLERATE 8000\n"
- "#define PSK48_CAR_FREQ 2000\n"
- "#define PSK48_PSK_LEN 5\n"
- "#define PSK48_RXF_LEN %u\n"
- "#define PSK48_PHASEINC (0x10000*PSK48_CAR_FREQ/PSK48_SAMPLERATE)\n"
- "#define PSK48_SPHASEINC (0x10000/(2*PSK48_PSK_LEN))\n\n"
- "static const short psk48_tx_table[PSK48_TXF_OVERSAMPLING*"
- "PSK48_TXF_NUMSAMPLES*8*2] = {",
- PSK48_TXF_OVERSAMPLING, PSK48_TXF_NUMSAMPLES, PSK48_RXF_LEN);
- for (i = 0; i < PSK48_TXF_OVERSAMPLING; i++) {
- for (j = 0; j < PSK48_TXF_NUMSAMPLES; j++) {
- fprintf(f, "\n\t");
- for (k = 0; k < 8; k++) {
- x = 32767.0 * cos(k*M_PI/4.0) *
- psk48_tx_coeff[j * PSK48_TXF_OVERSAMPLING + i];
- fprintf(f, "%6d, ", x);
- }
- fprintf(f, "\n\t");
- for (k = 0; k < 8; k++) {
- x = 32767.0 * sin(k*M_PI/4.0) *
- psk48_tx_coeff[j * PSK48_TXF_OVERSAMPLING + i];
- fprintf(f, "%6d", x);
- if (k != 7 || j != PSK48_TXF_NUMSAMPLES-1 ||
- i != PSK48_TXF_OVERSAMPLING-1)
- fprintf(f, ", ");
- }
- }
- }
- fprintf(f, "\n};\n\n");
-
- fprintf(f, "static const short psk48_rx_coeff[PSK48_RXF_LEN] = {\n\t");
- for (i = 0; i < PSK48_RXF_LEN; i++) {
- fprintf(f, "%6d", (int)(psk48_rx_coeff[i]*32767.0));
- if (i < PSK48_RXF_LEN-1)
- fprintf(f, ",%s", (i & 7) == 7 ? "\n\t" : "");
- }
- fprintf(f, "\n};\n\n");
-}
-
-/* -------------------------------------------------------------------- */
-
-static void gentbl_hapn4800(FILE *f)
-{
- int i, j, k, l;
- float s;
- float c[40];
- float min, max;
-
- fprintf(f, "\n/*\n * hapn4800 specific tables\n */\n\n");
- /*
- * firstly generate tables for the FM transmitter modulator
- */
- min = max = 0;
- memset(c, 0, sizeof(c));
- for (i = 0; i < 24; i++)
- c[8+i] = sinc(1.5*((i-11.5)/8.0))*hamming(i/23.0)/2.4;
- for (i = 0; i < 24; i++)
- c[i] -= c[i+8];
- fprintf(f, "static unsigned char hapn48_txfilt_8[] = {\n\t");
- for (i = 0; i < 8; i++) {
- for (j = 0; j < 16; j++) {
- for (k = 1, s = 0, l = i; k < 16; k <<= 1, l += 8) {
- if (j & k)
- s += c[l];
- else
- s -= c[l];
- }
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 7 || j < 15)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "hapn4800: txfilt8: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
- min = max = 0;
- memset(c, 0, sizeof(c));
- for (i = 0; i < 30; i++)
- c[10+i] = sinc(1.5*((i-14.5)/10.0))*hamming(i/29.0)/2.4;
- for (i = 0; i < 30; i++)
- c[i] -= c[i+10];
- fprintf(f, "static unsigned char hapn48_txfilt_10[] = {\n\t");
- for (i = 0; i < 10; i++) {
- for (j = 0; j < 16; j++) {
- for (k = 1, s = 0, l = i; k < 16; k <<= 1, l += 10) {
- if (j & k)
- s += c[l];
- else
- s -= c[l];
- }
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 9 || j < 15)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "hapn4800: txfilt10: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
- /*
- * secondly generate tables for the PM transmitter modulator
- */
- min = max = 0;
- memset(c, 0, sizeof(c));
- for (i = 0; i < 25; i++)
- c[i] = sinc(1.4*((i-12.0)/8.0))*hamming(i/24.0)/6.3;
- for (i = 0; i < 25; i++)
- for (j = 1; j < 8; j++)
- c[i] += c[i+j];
- fprintf(f, "static unsigned char hapn48_txfilt_pm8[] = {\n\t");
- for (i = 0; i < 8; i++) {
- for (j = 0; j < 16; j++) {
- for (k = 1, s = 0, l = i; k < 16; k <<= 1, l += 8) {
- if (j & k)
- s += c[l];
- else
- s -= c[l];
- }
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 7 || j < 15)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "hapn4800: txfiltpm8: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
- min = max = 0;
- memset(c, 0, sizeof(c));
- for (i = 0; i < 31; i++)
- c[10+i] = sinc(1.4*((i-15.0)/10.0))*hamming(i/30.0)/7.9;
- for (i = 0; i < 31; i++)
- for (j = 1; j < 10; j++)
- c[i] += c[i+j];
- fprintf(f, "static unsigned char hapn48_txfilt_pm10[] = {\n\t");
- for (i = 0; i < 10; i++) {
- for (j = 0; j < 16; j++) {
- for (k = 1, s = 0, l = i; k < 16; k <<= 1, l += 10) {
- if (j & k)
- s += c[l];
- else
- s -= c[l];
- }
- if (s > max)
- max = s;
- if (s < min)
- min = s;
- fprintf(f, "%4d", (int)(128+127*s));
- if (i < 9 || j < 15)
- fprintf(f, ",%s", (j & 7) == 7
- ? "\n\t" : "");
- }
- }
- fprintf(stderr, "hapn4800: txfiltpm10: min = %f; max = %f\n", min, max);
- fprintf(f, "\n};\n\n");
-
-}
-
-/* -------------------------------------------------------------------- */
-
-#define AFSK24_SAMPLERATE 16000
-#define AFSK24_CORRLEN 14
-
-static void gentbl_afsk2400(FILE *f, float tcm3105clk)
-{
- int i, sum, v;
-
- fprintf(f, "\n/*\n * afsk2400 specific tables (tcm3105 clk %7fHz)\n */\n"
- "#define AFSK24_TX_FREQ_LO %d\n"
- "#define AFSK24_TX_FREQ_HI %d\n"
- "#define AFSK24_BITPLL_INC %d\n"
- "#define AFSK24_SAMPLERATE %d\n\n", tcm3105clk,
- (int)(tcm3105clk/3694.0), (int)(tcm3105clk/2015.0),
- 0x10000*2400/AFSK24_SAMPLERATE, AFSK24_SAMPLERATE);
-
-#define ARGLO(x) 2.0*M_PI*(double)x*(tcm3105clk/3694.0)/(double)AFSK24_SAMPLERATE
-#define ARGHI(x) 2.0*M_PI*(double)x*(tcm3105clk/2015.0)/(double)AFSK24_SAMPLERATE
-#define WINDOW(x) hamming((float)(x)/(AFSK24_CORRLEN-1.0))
-
- fprintf(f, "static const int afsk24_tx_lo_i[] = {\n\t");
- for(sum = i = 0; i < AFSK24_CORRLEN; i++) {
- sum += (v = 127.0*cos(ARGLO(i))*WINDOW(i));
- fprintf(f, " %4i%c", v, (i < AFSK24_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK24_TX_LO_I %d\n\n"
- "static const int afsk24_tx_lo_q[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK24_CORRLEN; i++) {
- sum += (v = 127.0*sin(ARGLO(i))*WINDOW(i));
- fprintf(f, " %4i%c", v, (i < AFSK24_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK24_TX_LO_Q %d\n\n"
- "static const int afsk24_tx_hi_i[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK24_CORRLEN; i++) {
- sum += (v = 127.0*cos(ARGHI(i))*WINDOW(i));
- fprintf(f, " %4i%c", v, (i < AFSK24_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK24_TX_HI_I %d\n\n"
- "static const int afsk24_tx_hi_q[] = {\n\t", sum);
- for(sum = i = 0; i < AFSK24_CORRLEN; i++) {
- sum += (v = 127.0*sin(ARGHI(i))*WINDOW(i));
- fprintf(f, " %4i%c", v, (i < AFSK24_CORRLEN-1) ? ',' : ' ');
- }
- fprintf(f, "\n};\n#define SUM_AFSK24_TX_HI_Q %d\n\n", sum);
-#undef ARGLO
-#undef ARGHI
-#undef WINDOW
-}
-
-/* -------------------------------------------------------------------- */
-
-static char *progname;
-
-static void gentbl_banner(FILE *f)
-{
- fprintf(f, "/*\n * THIS FILE IS GENERATED AUTOMATICALLY BY %s, "
- "DO NOT EDIT!\n */\n\n", progname);
-}
-
-/* -------------------------------------------------------------------- */
-
-void main(int argc, char *argv[])
-{
- FILE *f;
-
- progname = argv[0];
- if (!(f = fopen("sm_tbl_afsk1200.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_offscostab(f, 6);
- gentbl_costab(f, 6);
- gentbl_afsk1200(f);
- fclose(f);
- if (!(f = fopen("sm_tbl_afsk2666.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_offscostab(f, 6);
- gentbl_costab(f, 6);
- gentbl_afsk2666(f);
- fclose(f);
- if (!(f = fopen("sm_tbl_psk4800.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_psk4800(f);
- gentbl_costab(f, 8);
- gentbl_atantab(f);
- fclose(f);
- if (!(f = fopen("sm_tbl_hapn4800.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_hapn4800(f);
- fclose(f);
- if (!(f = fopen("sm_tbl_fsk9600.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_fsk9600(f);
- fclose(f);
- if (!(f = fopen("sm_tbl_afsk2400_8.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_offscostab(f, 6);
- gentbl_costab(f, 6);
- gentbl_afsk2400(f, 8000000);
- fclose(f);
- if (!(f = fopen("sm_tbl_afsk2400_7.h", "w")))
- exit(1);
- gentbl_banner(f);
- gentbl_offscostab(f, 6);
- gentbl_costab(f, 6);
- gentbl_afsk2400(f, 7372800);
- fclose(f);
- exit(0);
-}
-
-
-/* -------------------------------------------------------------------- */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov