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Add end-to-end simulation

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jaseg 2020-03-15 14:47:25 +01:00
parent 0e8a0d6f78
commit fed186a49f
12 changed files with 286 additions and 53 deletions
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2
controller/fw/tools/dsss_demod_test.c
View file

@ -70,7 +70,7 @@ int main(int argc, char **argv) {
fprintf(stderr, "Reading %zd samples test data...", st.st_size/sizeof(float));
ssize_t nread = 0;
while (nread < st.st_size) {
ssize_t rc = read(fd, buf, st.st_size - nread);
ssize_t rc = read(fd, buf + nread, st.st_size - nread);
if (rc == -EINTR || rc == -EAGAIN)
continue;

111
controller/fw/tools/e2e_test.c Normal file
View file

@ -0,0 +1,111 @@
#include <stdint.h>
#include <math.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include "freq_meas.h"
#include "dsss_demod.h"
typedef uint16_t adc_data_t;
void handle_dsss_received(uint8_t data[static TRANSMISSION_SYMBOLS]) {
printf("data sequence received: [ ");
for (size_t i=0; i<TRANSMISSION_SYMBOLS; i++) {
printf("%+3d", ((data[i]&1) ? 1 : -1) * (data[i]>>1));
if (i+1 < TRANSMISSION_SYMBOLS)
printf(", ");
}
printf(" ]\n");
}
void print_usage(void);
void print_usage() {
fprintf(stderr, "Usage: e2e_test [emulated_adc_data.bin]\n");
}
int main(int argc, char **argv) {
if (argc != 2) {
fprintf(stderr, "Error: Invalid arguments.\n");
print_usage();
return 1;
}
int fd = open(argv[1], O_RDONLY);
struct stat st;
if (fstat(fd, &st)) {
fprintf(stderr, "Error querying test data file size: %s\n", strerror(errno));
return 2;
}
if (st.st_size < 0 || st.st_size > 100000000) {
fprintf(stderr, "Error reading test data: too much test data (size=%zd)\n", st.st_size);
return 2;
}
if (st.st_size % sizeof(adc_data_t) != 0) {
fprintf(stderr, "Error reading test data: file size is not divisible by %zd (size=%zd)\n", sizeof(adc_data_t), st.st_size);
return 2;
}
char *buf = malloc(st.st_size);
if (!buf) {
fprintf(stderr, "Error allocating memory");
return 2;
}
const size_t n_samples = st.st_size / sizeof(adc_data_t);
fprintf(stderr, "Reading %zd samples test data...", n_samples);
ssize_t nread = 0;
while (nread < st.st_size) {
ssize_t rc = read(fd, buf + nread, st.st_size - nread);
if (rc == -EINTR || rc == -EAGAIN)
continue;
if (rc < 0) {
fprintf(stderr, "\nError reading test data: %s\n", strerror(errno));
return 2;
}
if (rc == 0) {
fprintf(stderr, "\nError reading test data: Unexpected end of file\n");
return 2;
}
nread += rc;
}
fprintf(stderr, " done. Read %zd bytes.\n", nread);
adc_data_t *buf_d = (adc_data_t *)buf;
struct dsss_demod_state demod;
dsss_demod_init(&demod);
fprintf(stderr, "Starting simulation.\n");
size_t iterations = (n_samples-FMEAS_FFT_LEN)/(FMEAS_FFT_LEN/2);
for (size_t i=0; i<iterations; i++) {
/*
fprintf(stderr, "Iteration %zd/%zd\n", i, iterations);
*/
float res = NAN;
int rc = adc_buf_measure_freq(buf_d + i*(FMEAS_FFT_LEN/2), &res);
if (rc)
printf("ERROR: Simulation error in iteration %zd at position %zd: %d\n", i, i*(FMEAS_FFT_LEN/2), rc);
dsss_demod_step(&demod, res, i);
/*
printf("%09zd %12f\n", i, res);
*/
}
free(buf);
return 0;
}

6
controller/fw/tools/freq_meas_test.c
View file

@ -49,9 +49,9 @@ int main(int argc, char **argv) {
}
fprintf(stderr, "Reading %zd samples test data...", st.st_size/sizeof(float));
size_t nread = 0;
ssize_t nread = 0;
while (nread < st.st_size) {
ssize_t rc = read(fd, buf, st.st_size - nread);
ssize_t rc = read(fd, buf + nread, st.st_size - nread);
if (rc == -EINTR || rc == -EAGAIN)
continue;
@ -100,5 +100,7 @@ int main(int argc, char **argv) {
printf("%09zd %12f\n", i, res);
}
free(buf);
free(sim_adc_buf);
return 0;
}

16
controller/fw/tools/presig_gen.py
View file

@ -123,17 +123,17 @@ if __name__ == '__main__':
auth_parser.add_argument('height', type=int, help='Authentication string height, counting from 0 (root key)')
auth_parser.set_defaults(func=auth_cmd)
auth_parser.add_argument('-a', '--all', action='store_const', const='all', help='Vendor name for vendor domain')
auth_parser.add_argument('-v', '--vendor', type=str, nargs='?', const=test_vendor, help='Vendor name for vendor domain')
auth_parser.add_argument('-s', '--series', type=str, nargs='?', const=test_series, help='Series identifier for series domain')
auth_parser.add_argument('-r', '--region', type=str, nargs='?', const=test_region, help='Region name for region domain')
auth_parser.add_argument('-c', '--country', type=str, nargs='?', const=test_country, help='Country name for country domain')
auth_parser.add_argument('-v', '--vendor', type=str, nargs='?', const=TEST_VENDOR, help='Vendor name for vendor domain')
auth_parser.add_argument('-s', '--series', type=str, nargs='?', const=TEST_SERIES, help='Series identifier for series domain')
auth_parser.add_argument('-r', '--region', type=str, nargs='?', const=TEST_REGION, help='Region name for region domain')
auth_parser.add_argument('-c', '--country', type=str, nargs='?', const=TEST_COUNTRY, help='Country name for country domain')
prekey_parser = subparsers.add_parser('prekey', help='Generate prekey data .C source code file')
prekey_parser.add_argument('-m', '--max-height', type=int, default=8, help='Height of generated prekey')
prekey_parser.add_argument('-v', '--vendor', type=str, default=test_vendor, help='Vendor name for vendor domain')
prekey_parser.add_argument('-s', '--series', type=str, default=test_series, help='Series identifier for series domain')
prekey_parser.add_argument('-r', '--region', type=str, default=test_region, help='Region name for region domain')
prekey_parser.add_argument('-c', '--country', type=str, default=test_country, help='Country name for country domain')
prekey_parser.add_argument('-v', '--vendor', type=str, default=TEST_VENDOR, help='Vendor name for vendor domain')
prekey_parser.add_argument('-s', '--series', type=str, default=TEST_SERIES, help='Series identifier for series domain')
prekey_parser.add_argument('-r', '--region', type=str, default=TEST_REGION, help='Region name for region domain')
prekey_parser.add_argument('-c', '--country', type=str, default=TEST_COUNTRY, help='Country name for country domain')
prekey_parser.set_defaults(func=prekey_cmd, all='all')
args = parser.parse_args()