Import Mbed OS hard-float snapshot

connectivity/drivers/cellular/QUECTEL/BG96/QUECTEL_BG96_ControlPlane_netif.cpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2018, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "CellularUtil.h"
+#include "QUECTEL_BG96_ControlPlane_netif.h"
+#include "CellularLog.h"
+
+using namespace mbed_cellular_util;
+
+namespace mbed {
+
+QUECTEL_BG96_ControlPlane_netif::QUECTEL_BG96_ControlPlane_netif(ATHandler &at, int cid, AT_CellularDevice &device) : AT_ControlPlane_netif(at, cid, device)
+{}
+
+nsapi_size_or_error_t QUECTEL_BG96_ControlPlane_netif::send(const void *data, nsapi_size_t size)
+{
+    if (size > 100) { // from BG96_NIDD_AT_Commands_Manual_V1.0
+        return NSAPI_ERROR_PARAMETER;
+    }
+
+    _at.lock();
+    _at.cmd_start("AT+QCFGEXT=\"nipds\",1,");
+    _at.write_hex_string((const char *)data, size);
+    _at.write_int(2 * size);
+    _at.cmd_stop_read_resp();
+    nsapi_error_t err = _at.unlock_return_error();
+
+    return (err == NSAPI_ERROR_OK) ? size : err;
+}
+
+nsapi_size_or_error_t QUECTEL_BG96_ControlPlane_netif::recv(void *buffer, nsapi_size_t size)
+{
+    _at.lock();
+
+    _at.cmd_start_stop("+QCFGEXT", "=", "%s%d", "nipdr", 0);
+    _at.resp_start("+QCFGEXT:");
+    // skip 3 params: "nipdr",<total_receive_length>,<have_read_length>
+    _at.skip_param(3);
+    // get to <unread_length>
+    int unread_length = _at.read_int();
+    _at.resp_stop();
+
+    if (!unread_length || unread_length == -1) {
+        _at.unlock();
+        return NSAPI_ERROR_WOULD_BLOCK;
+    }
+    if ((nsapi_size_t)unread_length > size) {
+        tr_warn("recv %d/%d", size, unread_length);
+        unread_length = size;
+    }
+
+    _at.cmd_start_stop("+QCFGEXT", "=", "%s%d%d", "nipdr", unread_length, 1);
+    _at.resp_start("+QCFGEXT:");
+    _at.skip_param(); // skip "nipdr"
+    nsapi_size_t read_length = _at.read_int();
+    ssize_t read_len = _at.read_hex_string((char *)buffer, read_length);
+    _at.resp_stop();
+
+    nsapi_error_t err = _at.unlock_return_error();
+
+    if (err == NSAPI_ERROR_OK && read_len) {
+        return read_len;
+    }
+
+    return NSAPI_ERROR_WOULD_BLOCK;
+}
+
+} // mbed namespace