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canfdtest: Add message length support 

Added the '-s' command line option to set the frame payload length in bytes.

Signed-off-by: RICCIARDI-Adrien <adrien.ricciardi@hotmail.fr>
pull/368/head
RICCIARDI-Adrien 2022-06-27 18:32:15 +02:00
parent 5e06623b3d
commit b8af5a6031
1 changed files with 27 additions and 4 deletions
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31
canfdtest.c
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@ -57,6 +57,7 @@ static canid_t can_id_pong = CAN_MSG_ID_PONG;
static int has_pong_id = 0;
static int is_can_fd = 0;
static int bit_rate_switch = 0;
static int msg_len = CAN_MSG_LEN;
static void print_usage(char *prg)
{
@ -72,6 +73,7 @@ static void print_usage(char *prg)
" -i ID (CAN ID to use for frames to DUT (ping), default %x)\n"
" -l COUNT (test loop count)\n"
" -o ID (CAN ID to use for frames to host (pong), default %x)\n"
" -s SIZE (frame payload size in bytes)\n"
" -v (low verbosity)\n"
" -vv (high verbosity)\n"
" -x (ignore other frames on bus)\n"
@ -245,7 +247,7 @@ static int check_frame(const struct canfd_frame *frame)
err = -1;
}
if (frame->len != CAN_MSG_LEN) {
if (frame->len != msg_len) {
printf("Unexpected Message length %d!\n", frame->len);
err = -1;
}
@ -333,11 +335,11 @@ static int can_echo_gen(void)
while (running) {
if (unprocessed < inflight_count) {
/* still send messages */
tx_frames[send_pos].len = CAN_MSG_LEN;
tx_frames[send_pos].len = msg_len;
tx_frames[send_pos].can_id = can_id_ping;
recv_tx[send_pos] = 0;
for (i = 0; i < CAN_MSG_LEN; i++)
for (i = 0; i < msg_len; i++)
tx_frames[send_pos].data[i] = counter + i;
if (send_frame(&tx_frames[send_pos])) {
err = -1;
@ -418,7 +420,7 @@ int main(int argc, char *argv[])
signal(SIGHUP, signal_handler);
signal(SIGINT, signal_handler);
while ((opt = getopt(argc, argv, "bdf:gi:l:o:vx?")) != -1) {
while ((opt = getopt(argc, argv, "bdf:gi:l:o:s:vx?")) != -1) {
switch (opt) {
case 'b':
bit_rate_switch = 1;
@ -449,6 +451,10 @@ int main(int argc, char *argv[])
has_pong_id = 1;
break;
case 's':
msg_len = atoi(optarg);
break;
case 'v':
verbose++;
break;
@ -470,6 +476,23 @@ int main(int argc, char *argv[])
return 1;
}
/* Make sure the message length is valid */
if (msg_len <= 0) {
printf("Message length must > 0\n");
return 1;
}
if (is_can_fd) {
if (msg_len > CANFD_MAX_DLEN) {
printf("Message length must be <= %d bytes for CAN FD\n", CANFD_MAX_DLEN);
return 1;
}
} else {
if (msg_len > CAN_MAX_DLEN) {
printf("Message length must be <= %d bytes for CAN 2.0B\n", CAN_MAX_DLEN);
return 1;
}
}
if ((argc - optind) != 1)
print_usage(basename(argv[0]));
intf_name = argv[optind];