static const char *test_virtchar1_internal(const char *path)
{
TPRINTF("Opening `%s'...\n", path);
int fd = open(path, O_RDONLY);
if (fd < 0) {
TPRINTF(" ...error: %s\n", str_error(fd));
if (fd == ENOENT) {
TPRINTF(" (error was ENOENT: " \
"have you compiled test drivers?)\n");
}
return "Failed opening devman driver device for reading";
}
TPRINTF(" ...file handle %d\n", fd);
TPRINTF(" Asking for session...\n");
async_sess_t *sess = fd_session(EXCHANGE_SERIALIZE, fd);
if (!sess) {
close(fd);
TPRINTF(" ...error: %s\n", str_error(errno));
return "Failed to get session to device";
}
TPRINTF(" ...session is %p\n", sess);
TPRINTF(" Will try to read...\n");
size_t i;
char buffer[BUFFER_SIZE];
char_dev_read(sess, buffer, BUFFER_SIZE);
TPRINTF(" ...verifying that we read zeroes only...\n");
for (i = 0; i < BUFFER_SIZE; i++) {
if (buffer[i] != 0) {
return "Not all bytes are zeroes";
}
}
TPRINTF(" ...data read okay\n");
/* Clean-up. */
TPRINTF(" Closing session and file descriptor\n");
async_hangup(sess);
close(fd);
return NULL;
}
int main(int argc, char **argv)
{
sysarg_t baud = 9600;
service_id_t svc_id;
int arg = 1;
int rc;
if (argc > arg && str_test_prefix(argv[arg], "--baud=")) {
size_t arg_offset = str_lsize(argv[arg], 7);
char* arg_str = argv[arg] + arg_offset;
if (str_length(arg_str) == 0) {
fprintf(stderr, "--baud requires an argument\n");
syntax_print();
return 1;
}
char *endptr;
baud = strtol(arg_str, &endptr, 10);
if (*endptr != '\0') {
fprintf(stderr, "Invalid value for baud\n");
syntax_print();
return 1;
}
arg++;
}
if (argc > arg) {
rc = loc_service_get_id(argv[arg], &svc_id, 0);
if (rc != EOK) {
fprintf(stderr, "Cannot find device service %s\n",
argv[arg]);
return 1;
}
arg++;
}
else {
category_id_t serial_cat_id;
rc = loc_category_get_id("serial", &serial_cat_id, 0);
if (rc != EOK) {
fprintf(stderr, "Failed getting id of category "
"'serial'\n");
return 1;
}
service_id_t *svc_ids;
size_t svc_count;
rc = loc_category_get_svcs(serial_cat_id, &svc_ids, &svc_count);
if (rc != EOK) {
fprintf(stderr, "Failed getting list of services\n");
return 1;
}
if (svc_count == 0) {
fprintf(stderr, "No service in category 'serial'\n");
free(svc_ids);
return 1;
}
svc_id = svc_ids[0];
free(svc_ids);
}
if (argc > arg) {
fprintf(stderr, "Too many arguments\n");
syntax_print();
return 1;
}
async_sess_t *sess = loc_service_connect(svc_id, INTERFACE_DDF,
IPC_FLAG_BLOCKING);
if (!sess) {
fprintf(stderr, "Failed connecting to service\n");
}
async_exch_t *exch = async_exchange_begin(sess);
rc = async_req_4_0(exch, SERIAL_SET_COM_PROPS, baud,
SERIAL_NO_PARITY, 8, 1);
async_exchange_end(exch);
if (rc != EOK) {
fprintf(stderr, "Failed setting serial properties\n");
return 2;
}
uint8_t *buf = (uint8_t *) malloc(BUF_SIZE);
if (buf == NULL) {
fprintf(stderr, "Failed allocating buffer\n");
return 3;
}
while (true) {
ssize_t read = char_dev_read(sess, buf, BUF_SIZE);
if (read < 0) {
fprintf(stderr, "Failed reading from serial device\n");
break;
}
ssize_t i;
for (i = 0; i < read; i++) {
printf("%02hhx ", buf[i]);
}
fflush(stdout);
}
free(buf);
return 0;
}
