static void cb_got_dev_info(struct libusb_transfer *transfer)
{
struct aura_node *node = transfer->user_data;
struct usb_dev_info *inf = aura_get_transportdata(node);
struct usb_info_packet *pck;
int newbufsize;
char *tmp;
check_control(transfer);
slog(4, SLOG_DEBUG, "usb: Got info packet from device");
if (transfer->actual_length < sizeof(struct usb_info_packet)) {
slog(0, SLOG_ERROR, "usb: short-read on info packet want %d got %d (API mismatch?)",
sizeof(struct usb_info_packet), transfer->actual_length);
usb_panic_and_reset_state(node);
return;
}
pck = (struct usb_info_packet *)libusb_control_transfer_get_data(transfer);
aura_set_node_endian(node, usbdev_is_be(pck) ?
AURA_ENDIAN_BIG : AURA_ENDIAN_LITTLE);
newbufsize = pck->io_buf_size + LIBUSB_CONTROL_SETUP_SIZE;
inf->num_objects = pck->num_objs;
if (newbufsize > inf->io_buf_size) {
slog(4, SLOG_DEBUG, "usb: adjusting control buffer size: %d->%d bytes",
inf->io_buf_size, newbufsize);
tmp = realloc(inf->ctrlbuf, newbufsize);
if (!tmp) {
slog(0, SLOG_ERROR, "Allocation error while adjusting control buffer size");
aura_panic(node);
}
inf->io_buf_size = newbufsize;
inf->ctrlbuf = (unsigned char *)tmp;
}
slog(4, SLOG_DEBUG, "usb: Device has %d objects, now running discovery", inf->num_objects);
inf->etbl = aura_etable_create(node, inf->num_objects);
if (!inf->etbl)
{
slog(0, SLOG_ERROR, "usb: etable creation failed");
aura_panic(node);
}
inf->current_object = 0;
request_object(node, inf->current_object++);
}
static int gpio_open(struct aura_node *node, const char *opts)
{
slog(0, SLOG_INFO, "Opening sysfs/gpio transport");
struct aura_export_table *etbl = aura_etable_create(node, 16);
if (!etbl)
BUG(node, "Failed to create etable");
aura_etable_add(etbl, "write", "33", "");
aura_etable_add(etbl, "read", "3", "3");
aura_etable_add(etbl, "out", "3", "");
aura_etable_add(etbl, "in", "3", "");
aura_etable_add(etbl, "export", "3", "3");
aura_etable_add(etbl, "watch", "3", "");
//Change notification
aura_etable_add(etbl, "gpio_changed", NULL, "333");
aura_etable_activate(etbl);
aura_set_status(node, AURA_STATUS_ONLINE);
slog(0, SLOG_INFO, "Opened sysfs/gpio transport");
return 0;
}
static int l_etable_create(lua_State *L)
{
struct aura_node *node;
int count = 0;
struct aura_export_table *tbl;
TRACE();
aura_check_args(L, 2);
if (!lua_islightuserdata(L, 1))
aura_typeerror(L, 1, "ludata");
if (!lua_isnumber(L, 2))
aura_typeerror(L, 1, "number");
node = lua_touserdata(L, 1);
count = lua_tonumber(L, 2);
tbl = aura_etable_create(node, count);
if (!tbl)
return luaL_error(L, "error creating etable for %d elements", count);
lua_pushlightuserdata(L, tbl);
return 1;
}