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authorPhilip Balister <philip@opensdr.com>2011-02-21 07:45:39 -0800
committerPhilip Balister <philip@opensdr.com>2011-02-21 07:45:39 -0800
commit40f58d26c28adee8c8aebf93df25535e16050932 (patch)
tree02e35966a323700454102c1d0b0d4060d65a64fb /host/apps/omap_debug/usrp-e-loopback.c
parentd7ae215814ab104be699d3f6d078ce84e6558330 (diff)
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usrp-e-utils : Remove old files.
Diffstat (limited to 'host/apps/omap_debug/usrp-e-loopback.c')
-rw-r--r--host/apps/omap_debug/usrp-e-loopback.c194
1 files changed, 0 insertions, 194 deletions
diff --git a/host/apps/omap_debug/usrp-e-loopback.c b/host/apps/omap_debug/usrp-e-loopback.c
deleted file mode 100644
index d11cf7d09..000000000
--- a/host/apps/omap_debug/usrp-e-loopback.c
+++ /dev/null
@@ -1,194 +0,0 @@
-#include <stdio.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/mman.h>
-#include "usrp_e.h"
-
-// max length #define PKT_DATA_LENGTH 1016
-static int packet_data_length;
-static int error;
-
-struct pkt {
- int len;
- int checksum;
- int seq_num;
- short data[];
-};
-
-static int fp;
-
-static int calc_checksum(struct pkt *p)
-{
- int i, sum;
-
- i = 0;
- sum = 0;
-
- for (i=0; i < p->len; i++)
- sum += p->data[i];
-
- sum += p->seq_num;
- sum += p->len;
-
- return sum;
-}
-
-static void *read_thread(void *threadid)
-{
- char *rx_data;
- int cnt, prev_seq_num, pkt_count, seq_num_failure;
- struct pkt *p;
- unsigned long bytes_transfered, elapsed_seconds;
- struct timeval start_time, finish_time;
-
- printf("Greetings from the reading thread!\n");
-
- bytes_transfered = 0;
- gettimeofday(&start_time, NULL);
-
- // IMPORTANT: must assume max length packet from fpga
- rx_data = malloc(2048);
- p = (struct pkt *) ((void *)rx_data);
-
- prev_seq_num = 0;
- pkt_count = 0;
- seq_num_failure = 0;
-
- while (1) {
-
- cnt = read(fp, rx_data, 2048);
- if (cnt < 0)
- printf("Error returned from read: %d, sequence number = %d\n", cnt, p->seq_num);
-
-// printf("p->seq_num = %d\n", p->seq_num);
-
-
- pkt_count++;
-
- if (p->seq_num != prev_seq_num + 1) {
- printf("Sequence number fail, current = %d, previous = %d, pkt_count = %d\n",
- p->seq_num, prev_seq_num, pkt_count);
-
- seq_num_failure ++;
- if (seq_num_failure > 2)
- error = 1;
- }
-
- prev_seq_num = p->seq_num;
-
- if (calc_checksum(p) != p->checksum) {
- printf("Checksum fail packet = %X, expected = %X, pkt_count = %d\n",
- calc_checksum(p), p->checksum, pkt_count);
- error = 1;
- }
-
- bytes_transfered += cnt;
-
- if (bytes_transfered > (100 * 1000000)) {
- gettimeofday(&finish_time, NULL);
- elapsed_seconds = finish_time.tv_sec - start_time.tv_sec;
-
- printf("RX data transfer rate = %f K Samples/second\n",
- (float) bytes_transfered / (float) elapsed_seconds / 4000);
-
-
- start_time = finish_time;
- bytes_transfered = 0;
- }
-
-
-// printf(".");
-// fflush(stdout);
-// printf("\n");
- }
-
-}
-
-static void *write_thread(void *threadid)
-{
- int seq_number, i, cnt;
- void *tx_data;
- struct pkt *p;
-
- printf("Greetings from the write thread!\n");
-
- tx_data = malloc(2048);
- p = (struct pkt *) ((void *)tx_data);
-
- for (i=0; i < packet_data_length; i++)
-// p->data[i] = random() >> 16;
- p->data[i] = i;
-
- seq_number = 1;
-
- while (1) {
- p->seq_num = seq_number++;
-
- if (packet_data_length > 0)
- p->len = packet_data_length;
- else
- p->len = (random() & 0x1ff) + (1004 - 512);
-
- p->checksum = calc_checksum(p);
-
- cnt = write(fp, tx_data, p->len * 2 + 12);
- if (cnt < 0)
- printf("Error returned from write: %d\n", cnt);
-// sleep(1);
- }
-}
-
-
-int main(int argc, char *argv[])
-{
- pthread_t tx, rx;
- long int t;
- struct sched_param s = {
- .sched_priority = 1
- };
- void *rb;
- struct usrp_transfer_frame *tx_rb, *rx_rb;
-
- if (argc < 2) {
- printf("%s data_size\n", argv[0]);
- return -1;
- }
-
- packet_data_length = atoi(argv[1]);
-
- fp = open("/dev/usrp_e0", O_RDWR);
- printf("fp = %d\n", fp);
-
- rb = mmap(0, 202 * 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fp, 0);
- if (!rb) {
- printf("mmap failed\n");
- exit;
- }
-
-
- sched_setscheduler(0, SCHED_RR, &s);
- error = 0;
-
-#if 1
- if (pthread_create(&rx, NULL, read_thread, (void *) t)) {
- printf("Failed to create rx thread\n");
- exit(-1);
- }
-
- sleep(1);
-#endif
-
- if (pthread_create(&tx, NULL, write_thread, (void *) t)) {
- printf("Failed to create tx thread\n");
- exit(-1);
- }
-
-// while (!error)
- sleep(1000000000);
-
- printf("Done sleeping\n");
-}