bool bt_scpp_attach(struct bt_scpp *scan, void *attrib)
{
bt_uuid_t iwin_uuid, refresh_uuid;
if (!scan || scan->attrib || !scan->primary)
return false;
scan->attrib = g_attrib_ref(attrib);
if (scan->iwhandle)
write_scan_params(scan->attrib, scan->iwhandle, scan->interval,
scan->window);
else {
bt_uuid16_create(&iwin_uuid, SCAN_INTERVAL_WIN_UUID);
discover_char(scan, scan->attrib, scan->primary->range.start,
scan->primary->range.end, &iwin_uuid,
iwin_discovered_cb, scan);
}
if (scan->refresh_handle)
scan->refresh_cb_id = g_attrib_register(scan->attrib,
ATT_OP_HANDLE_NOTIFY, scan->refresh_handle,
refresh_value_cb, scan, NULL);
else {
bt_uuid16_create(&refresh_uuid, SCAN_REFRESH_UUID);
discover_char(scan, scan->attrib, scan->primary->range.start,
scan->primary->range.end, &refresh_uuid,
refresh_discovered_cb, scan);
}
return true;
}
static void refresh_value_cb(const uint8_t *pdu, uint16_t len,
gpointer user_data)
{
struct scan *scan = user_data;
DBG("Server requires refresh: %d", pdu[3]);
if (pdu[3] == SERVER_REQUIRES_REFRESH)
write_scan_params(scan->attrib, scan->iwhandle);
}
static void iwin_discovered_cb(uint8_t status, GSList *chars, void *user_data)
{
struct scan *scan = user_data;
struct gatt_char *chr;
if (status) {
error("Discover Scan Interval Window: %s",
att_ecode2str(status));
return;
}
chr = chars->data;
scan->iwhandle = chr->value_handle;
DBG("Scan Interval Window handle: 0x%04x", scan->iwhandle);
write_scan_params(scan->attrib, scan->iwhandle);
}
static void attio_connected_cb(GAttrib *attrib, gpointer user_data)
{
struct scan *scan = user_data;
bt_uuid_t iwin_uuid, refresh_uuid;
scan->attrib = g_attrib_ref(attrib);
if (scan->iwhandle) {
write_scan_params(scan->attrib, scan->iwhandle);
return;
}
bt_uuid16_create(&iwin_uuid, SCAN_INTERVAL_WIN_UUID);
bt_uuid16_create(&refresh_uuid, SCAN_REFRESH_UUID);
gatt_discover_char(scan->attrib, scan->range.start, scan->range.end,
&iwin_uuid, iwin_discovered_cb, scan);
gatt_discover_char(scan->attrib, scan->range.start, scan->range.end,
&refresh_uuid, refresh_discovered_cb, scan);
}
