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-rw-r--r--host/apps/omap_debug/Makefile6
-rw-r--r--host/apps/omap_debug/usrp-e-loopback.c39
-rw-r--r--host/apps/omap_debug/usrp-e-mm-loopback.c194
3 files changed, 227 insertions, 12 deletions
diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile
index c11609bdd..46d4714a8 100644
--- a/host/apps/omap_debug/Makefile
+++ b/host/apps/omap_debug/Makefile
@@ -1,7 +1,7 @@
CFLAGS=-Wall -I../../lib/usrp/usrp_e/ -march=armv7-a -mtune=cortex-a8 -mfpu=neon -O3
CXXFLAGS=-Wall -I../../lib/usrp/usrp_e/ -march=armv7-a -mtune=cortex-a8 -mfpu=neon -O3
-all : usrp-e-spi usrp-e-i2c usrp-e-loopback usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button usrp-e-uart-rx fpga-downloader usrp-e-gpio usrp-e-debug-pins usrp-e-random-loopback usrp-e-timed usrp-e-lb-test usrp-e-crc-rw clkgen-config
+all : usrp-e-spi usrp-e-i2c usrp-e-loopback usrp-e-mm-loopback usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button usrp-e-uart-rx fpga-downloader usrp-e-gpio usrp-e-debug-pins usrp-e-random-loopback usrp-e-timed usrp-e-lb-test usrp-e-crc-rw clkgen-config
usrp-e-spi : usrp-e-spi.c
@@ -10,6 +10,9 @@ usrp-e-i2c : usrp-e-i2c.c
usrp-e-loopback : usrp-e-loopback.c
gcc -o $@ $< -lpthread ${CFLAGS}
+usrp-e-mm-loopback : usrp-e-mm-loopback.c
+ gcc -o $@ $< -lpthread ${CFLAGS}
+
usrp-e-timed : usrp-e-timed.c
gcc -o $@ $< -lpthread ${CFLAGS}
@@ -42,6 +45,7 @@ clean :
rm -f usrp-e-spi
rm -f usrp-e-i2c
rm -f usrp-e-loopback
+ rm -f usrp-e-mm-loopback
rm -f usrp-e-timed
rm -f usrp-e-rw-random
rm -f usrp-e-uart
diff --git a/host/apps/omap_debug/usrp-e-loopback.c b/host/apps/omap_debug/usrp-e-loopback.c
index 929d65604..c463e774d 100644
--- a/host/apps/omap_debug/usrp-e-loopback.c
+++ b/host/apps/omap_debug/usrp-e-loopback.c
@@ -14,6 +14,7 @@ static int error;
struct pkt {
int checksum;
int seq_num;
+ int len;
short data[];
};
@@ -26,10 +27,11 @@ static int calc_checksum(struct pkt *p)
i = 0;
sum = 0;
- for (i=0; i < packet_data_length; i++)
+ for (i=0; i < p->len; i++)
sum += p->data[i];
sum += p->seq_num;
+ sum += p->len;
return sum;
}
@@ -48,7 +50,7 @@ static void *read_thread(void *threadid)
gettimeofday(&start_time, NULL);
// IMPORTANT: must assume max length packet from fpga
- rx_data = malloc(sizeof(struct usrp_transfer_frame) + sizeof(struct pkt) + (1016 * 2));
+ rx_data = malloc(2048);
p = (struct pkt *) ((void *)rx_data + offsetof(struct usrp_transfer_frame, buf));
//p = &(rx_data->buf[0]);
printf("Address of rx_data = %p, p = %p\n", rx_data, p);
@@ -60,14 +62,16 @@ static void *read_thread(void *threadid)
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("Packet received, status = %X, len = %d\n", rx_data->status, rx_data->len);
-// printf("p->seq_num = %d\n", p->seq_num);
+// printf("p->seq_num = %d, p->len = %d\n", p->seq_num, p->len);
+
+ if (rx_data->len != (p->len*2 + 12))
+ printf("rx_data->len = %d, p->len*2 + 12 = %d\n", rx_data->len, p->len*2 + 12);
pkt_count++;
@@ -83,8 +87,8 @@ static void *read_thread(void *threadid)
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);
+ printf("Cksum fail rx = %X, tx = %X, dif = %d, count = %d, len = %d, rx->len = %d\n",
+ calc_checksum(p), p->checksum, p->checksum - calc_checksum(p), pkt_count, p->len, rx_data->len);
error = 1;
}
@@ -112,24 +116,23 @@ static void *read_thread(void *threadid)
static void *write_thread(void *threadid)
{
- int seq_number, i, cnt;
+ int seq_number, i, cnt, data_length;
struct usrp_transfer_frame *tx_data;
struct pkt *p;
printf("Greetings from the write thread!\n");
- tx_data = malloc(sizeof(struct usrp_transfer_frame) + sizeof(struct pkt) + (packet_data_length * 2));
+ tx_data = malloc(2048);
p = (struct pkt *) ((void *)tx_data + offsetof(struct usrp_transfer_frame, buf));
printf("Address of tx_data = %p, p = %p\n", tx_data, p);
printf("sizeof rp_transfer_frame = %d, sizeof pkt = %d\n", sizeof(struct usrp_transfer_frame), sizeof(struct pkt));
- for (i=0; i < packet_data_length; i++)
+ for (i=0; i < 2048; i++)
// p->data[i] = random() >> 16;
p->data[i] = i;
tx_data->status = 0xdeadbeef;
- tx_data->len = 8 + packet_data_length * 2;
printf("tx_data->len = %d\n", tx_data->len);
@@ -137,9 +140,23 @@ static void *write_thread(void *threadid)
while (1) {
// printf("tx status = %X, len = %d\n", tx_data->status, tx_data->len);
+ if (packet_data_length > 0)
+ data_length = packet_data_length;
+ else
+ data_length = (random() & 0x1ff) + (1004 - 512);
+
+// printf("data_length = %d\n", data_length);
+
p->seq_num = seq_number++;
+ p->len = data_length;
p->checksum = calc_checksum(p);
- cnt = write(fp, tx_data, 2048);
+ tx_data->len = 12 + p->len * 2;
+
+// printf("tx status = %X, len = %d, p->len = %d\n", tx_data->status, tx_data->len, p->len);
+
+ cnt = write(fp, tx_data, sizeof(struct usrp_transfer_frame) + sizeof(struct pkt) + 2 * p->len);
+// cnt = write(fp, tx_data, 2048);
+
if (cnt < 0)
printf("Error returned from write: %d\n", cnt);
// sleep(1);
diff --git a/host/apps/omap_debug/usrp-e-mm-loopback.c b/host/apps/omap_debug/usrp-e-mm-loopback.c
new file mode 100644
index 000000000..d11cf7d09
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-mm-loopback.c
@@ -0,0 +1,194 @@
+#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");
+}
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