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RM1000_AT_CellularStack.h
1 /*
2  * Copyright (c) 2018, Arm Limited and affiliates.
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 #ifndef RM1000_AT_CELLULARSTACK_H_
18 #define RM1000_AT_CELLULARSTACK_H_
19 
20 #include <chrono>
21 
22 #include "AT_CellularStack.h"
23 #include "CellularUtil.h"
24 #include "mbed_wait_api.h"
25 #include "drivers/Timer.h"
26 
27 using namespace std::chrono;
28 
29 namespace mbed {
30 
32 public:
33  RM1000_AT_CellularStack(ATHandler &atHandler, int cid, nsapi_ip_stack_t stack_type, AT_CellularDevice &device);
34  virtual ~RM1000_AT_CellularStack();
35 
36  virtual nsapi_error_t gethostbyname(const char *host,
37  SocketAddress *address, nsapi_version_t version = NSAPI_UNSPEC, const char *interface_name = NULL);
38 
39 protected:
40  virtual nsapi_error_t socket_listen(nsapi_socket_t handle, int backlog);
41 
42  virtual nsapi_error_t socket_accept(nsapi_socket_t server,
43  nsapi_socket_t *handle, SocketAddress *address = 0);
44 
45 protected: // AT_CellularStack
46 
47  /** The profile to use (on board the modem).
48  */
49 #define PROFILE "0"
50 
51  /** Socket "unused" value.
52  */
53  static const int SOCKET_UNUSED = -1;
54 
55  /** Socket timeout value in milliseconds.
56  * Note: the sockets layer above will retry the
57  * call to the functions here when they return NSAPI_ERROR_WOULD_BLOCK
58  * and the user has set a larger timeout or full blocking.
59  */
60  static constexpr seconds SOCKET_TIMEOUT = 1s;
61 
62  /** The maximum number of bytes in a packet that can be write/read from
63  * the AT interface in one go.
64  */
65  static const int RM1000_MAX_PACKET_SIZE = 1024;
66 
67  virtual nsapi_error_t create_socket_impl(CellularSocket *socket);
68 
69  virtual nsapi_error_t socket_connect(nsapi_socket_t handle, const SocketAddress &address);
70 
71  virtual nsapi_size_or_error_t socket_sendto_impl(CellularSocket *socket, const SocketAddress &address,
72  const void *data, nsapi_size_t size);
73 
74  virtual nsapi_size_or_error_t socket_recvfrom_impl(CellularSocket *socket, SocketAddress *address,
75  void *buffer, nsapi_size_t size);
76 
77  virtual nsapi_error_t socket_close_impl(int sock_id);
78 
79 private:
80  // URC handlers
81  void RUSORCV_URC();
82  void RUSOCL_URC();
83 
84  /** Clear out the storage for a socket.
85  *
86  * @param id Cellular Socket.
87  * @return None
88  */
89  void clear_socket(CellularSocket *socket);
90 };
91 } // namespace mbed
92 #endif /* RM1000_AT_CELLULARSTACK_H_ */
Class AT_CellularStack.
void * nsapi_socket_t
Opaque handle for network sockets.
Definition: nsapi_types.h:254
signed int nsapi_error_t
Type used to represent error codes.
Definition: nsapi_types.h:142
signed int nsapi_size_or_error_t
Type used to represent either a size or error passed through sockets.
Definition: nsapi_types.h:153
SocketAddress class.
Definition: SocketAddress.h:37
Class AT_CellularDevice.
unsigned int nsapi_size_t
Type used to represent the size of data passed through sockets.
Definition: nsapi_types.h:146
Definition: ATHandler.h:46
Class for sending AT commands and parsing AT responses.
Definition: ATHandler.h:68
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