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-rw-r--r--host/apps/omap_debug/usrp-e-mm-loopback.c273
1 files changed, 0 insertions, 273 deletions
diff --git a/host/apps/omap_debug/usrp-e-mm-loopback.c b/host/apps/omap_debug/usrp-e-mm-loopback.c
deleted file mode 100644
index 14f68a5c3..000000000
--- a/host/apps/omap_debug/usrp-e-mm-loopback.c
+++ /dev/null
@@ -1,273 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/mman.h>
-#include <sys/time.h>
-#include <poll.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[1024-6];
-};
-
-struct ring_buffer_info (*rxi)[];
-struct ring_buffer_info (*txi)[];
-struct pkt (*rx_buf)[200];
-struct pkt (*tx_buf)[200];
-
-static int fp;
-static struct usrp_e_ring_buffer_size_t rb_size;
-
-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)
-{
- 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;
- int rb_read;
-
- printf("Greetings from the reading thread!\n");
- printf("sizeof pkt = %d\n", sizeof(struct pkt));
-
- rb_read = 0;
-
- bytes_transfered = 0;
- gettimeofday(&start_time, NULL);
-
- prev_seq_num = 0;
- pkt_count = 0;
- seq_num_failure = 0;
-
- while (1) {
-
- if (!((*rxi)[rb_read].flags & RB_USER)) {
-// printf("Waiting for data\n");
- struct pollfd pfd;
- pfd.fd = fp;
- pfd.events = POLLIN;
- poll(&pfd, 1, -1);
- }
-
- (*rxi)[rb_read].flags = RB_USER_PROCESS;
-
-// printf("pkt received, rb_read = %d\n", rb_read);
-
- cnt = (*rxi)[rb_read].len;
- p = &(*rx_buf)[rb_read];
-
-// 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 = %X, p->seq_num = %d p->len = %d\n", p, p->seq_num, p->len);
-
-
- 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);
- printf("pkt received, rb_read = %d\n", rb_read);
- printf("p = %p, p->seq_num = %d p->len = %d\n", p, p->seq_num, p->len);
-
- 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;
- }
-
- (*rxi)[rb_read].flags = RB_KERNEL;
-
- rb_read++;
- if (rb_read == rb_size.num_rx_frames)
- rb_read = 0;
-
- 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");
- }
- return NULL;
-}
-
-static void *write_thread(void *threadid)
-{
- int seq_number, i, cnt, rb_write;
- 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;
- rb_write = 0;
-
- 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);
-
- if (!((*txi)[rb_write].flags & RB_KERNEL)) {
-// printf("Waiting for space\n");
- struct pollfd pfd;
- pfd.fd = fp;
- pfd.events = POLLOUT;
- poll(&pfd, 1, -1);
- }
-
- memcpy(&(*tx_buf)[rb_write], tx_data, p->len * 2 + 12);
-
- (*txi)[rb_write].len = p->len * 2 + 12;
- (*txi)[rb_write].flags = RB_USER;
-
- rb_write++;
- if (rb_write == rb_size.num_tx_frames)
- rb_write = 0;
-
- cnt = write(fp, NULL, 0);
-// if (cnt < 0)
-// printf("Error returned from write: %d\n", cnt);
-// sleep(1);
- }
- return NULL;
-}
-
-
-int main(int argc, char *argv[])
-{
- pthread_t tx, rx;
- long int t = 0;
- struct sched_param s = {
- .sched_priority = 1
- };
- int ret, map_size, page_size;
- void *rb;
- struct usrp_e_ctl16 d;
-
- 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);
-
- d.offset = 14;
- d.count = 1;
- d.buf[0] = (1<<8) | (1<<9);
- ioctl(fp, USRP_E_WRITE_CTL16, &d);
-
- page_size = getpagesize();
-
- ret = ioctl(fp, USRP_E_GET_RB_INFO, &rb_size);
-
- map_size = (rb_size.num_pages_rx_flags + rb_size.num_pages_tx_flags) * page_size +
- (rb_size.num_rx_frames + rb_size.num_tx_frames) * (page_size >> 1);
-
- rb = mmap(0, map_size, PROT_READ|PROT_WRITE, MAP_SHARED, fp, 0);
- if (rb == MAP_FAILED) {
- perror("mmap failed");
- return -1;
- }
-
- printf("rb = %p\n", rb);
-
- rxi = rb;
- rx_buf = rb + (rb_size.num_pages_rx_flags * page_size);
- txi = rb + (rb_size.num_pages_rx_flags * page_size) +
- (rb_size.num_rx_frames * page_size >> 1);
- tx_buf = rb + (rb_size.num_pages_rx_flags * page_size) +
- (rb_size.num_rx_frames * page_size >> 1) +
- (rb_size.num_pages_tx_flags * page_size);
-
- printf("rxi = %p, rx_buf = %p, txi = %p, tx_buf = %p\n", rxi, rx_buf, txi, tx_buf);
-
- if ((ret = sched_setscheduler(0, SCHED_RR, &s)))
- perror("sched_setscheduler");
-
- 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");
-
- return 0;
-}