void Y_usb_claim_interface(int argc)
{
ydev_instance_t* obj;
int interface_number;
int ret;
if (argc != 2) {
y_error("expecting exactly 2 arguments");
}
obj = get_device(1);
interface_number = ygets_i(0);
ret = libusb_claim_interface(obj->handle, interface_number);
if (ret < 0 && yarg_subroutine()) {
failure(NULL, ret);
}
ypush_int(ret);
}
void Y_ml4scan(int nArgs)
{
char *filename=YGetString(sp-nArgs+1);
int maxvar=0;
int returnString=(1-yarg_subroutine());
if (nArgs==1) {
maxvar=10000;
} else if (nArgs==2) {
maxvar=YGetInteger(sp-nArgs+2);
} else {
YError("ml4scan takes one or two arguments");
}
FILE *fs;
fs = openmat(filename);
if (fs == NULL) YError(p_strncat("Can't open file ",filename,0));
matscan(fs,maxvar,returnString);
matclose(filename);
}
void Y_usb_control_transfer(int argc)
{
ydev_instance_t* obj;
int ret;
int type, request, value, index, length;
long size;
unsigned char* data;
unsigned int timeout;
/* Get arguments. */
if (argc != 8) {
y_error("expecting exactly 8 arguments");
}
obj = get_device(7);
type = ygets_i(6) & 0xff; /* uint8_t */
request = ygets_i(5) & 0xff; /* uint8_t */
value = ygets_i(4) & 0xffff; /* uint16_t */
index = ygets_i(3) & 0xffff; /* uint16_t */
data = (unsigned char*)get_data(2, &size);
length = ygets_i(1) & 0xffff; /* uint16_t */
timeout = (unsigned int)(ygets_l(0) & 0xffffffffL);
if (length < 0) {
y_error("invalid length");
}
if (length > size) {
y_error("length must be at most the size of the data");
}
/* Apply operation. */
ret = libusb_control_transfer(obj->handle, type, request, value,
index, data, length, timeout);
if (ret < 0 && yarg_subroutine()) {
failure(NULL, ret);
}
ypush_int(ret);
}
static void do_transfer(int argc,
int (*transfer)(struct libusb_device_handle* handle,
unsigned char endpoint,
unsigned char* data,
int length,
int* transferred,
unsigned int timeout))
{
ydev_instance_t* obj;
int ret, iarg;
int endpoint, length, transferred, offset;
long size;
unsigned char* data;
unsigned int timeout;
long transferred_index;
/* Get arguments. */
if (argc != 6 && argc != 7) {
y_error("expecting 6 or 7 arguments");
}
iarg = argc;
obj = get_device(--iarg);
endpoint = ygets_i(--iarg) & 0xff; /* uint8_t */
data = (unsigned char*)get_data(--iarg, &size);
length = ygets_i(--iarg);
if (length < 0) {
y_error("invalid length");
}
if (length > size) {
y_error("length must be at most the size of the data");
}
transferred_index = yget_ref(--iarg);
if (transferred_index < 0L) {
y_error("expecting a simple variable reference");
}
timeout = (unsigned int)(ygets_l(--iarg) & 0xffffffffL);
if (iarg > 0) {
offset = ygets_i(--iarg);
if (offset < 0 || offset > length) {
y_error("invalid offset");
}
} else {
offset = 0;
}
/* Apply operation. */
if (length > offset) {
ret = transfer(obj->handle, endpoint, data + offset,
length - offset, &transferred, timeout);
if (!(ret == 0 || (ret == LIBUSB_ERROR_TIMEOUT && transferred > 0))) {
/* No data has been transferred. */
transferred = 0;
if (yarg_subroutine()) {
/* Some error has occured. */
failure(NULL, ret);
}
}
} else {
/* Nothing to do. */
transferred = 0;
ret = 0;
}
if (transferred_index >= 0L) {
/* Store total number of transferred bytes so far. */
ypush_int(offset + transferred);
yput_global(transferred_index, 0);
}
ypush_int(ret);
}
