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UARTCellularInterface Class Reference

UARTCellularInterface class. More...

#include <UARTCellularInterface.h>

Inherits PPPCellularInterface.

Inherited by OnboardCellularInterface.

Public Types

typedef mbed::Callback< void(nsapi_error_t
result, SocketAddress *address) 
hostbyname_cb_t )
 Hostname translation callback (for use with gethostbyname_async()).

Public Member Functions

 MBED_DEPRECATED_SINCE ("mbed-os-5.9","This API will be deprecated, use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead.") UARTCellularInterface(PinName tx
 Constructor.
 MBED_DEPRECATED_SINCE ("mbed-os-5.9","This API will be deprecated, use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead.") virtual ~UARTCellularInterface()
 Destructor.
 MBED_DEPRECATED_SINCE ("mbed-os-5.9","This API will be deprecated, use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead.") virtual void set_credentials(const char *apn
 Set the Cellular network credentials.
virtual void set_credentials (const char *apn, const char *uname=0, const char *pwd=0)=0
 Set the cellular network credentials.
virtual void set_sim_pin (const char *sim_pin)=0
 Set the PIN code for SIM card.
virtual nsapi_error_t connect (const char *sim_pin, const char *apn=0, const char *uname=0, const char *pwd=0)=0
 Attempt to connect to a cellular network with a PIN and credentials.
virtual nsapi_error_t connect ()=0
 Attempt to connect to a cellular network.
virtual nsapi_error_t disconnect ()=0
 Stop the interface.
virtual bool is_connected ()=0
 Check if the connection is currently established.
virtual const char * get_ip_address ()=0
 Get the local IP address.
virtual const char * get_netmask ()=0
 Get the local network mask.
virtual const char * get_gateway ()=0
 Get the local gateways.
virtual CellularBase * cellularBase ()
virtual const char * get_mac_address ()
 Get the local MAC address.
virtual nsapi_error_t set_network (const char *ip_address, const char *netmask, const char *gateway)
 Configure this network interface to use a static IP address.
virtual nsapi_error_t set_dhcp (bool dhcp)
 Enable or disable DHCP on connecting the network.
virtual nsapi_error_t gethostbyname (const char *host, SocketAddress *address, nsapi_version_t version=NSAPI_UNSPEC)
 Translate a hostname to an IP address with specific version.
virtual nsapi_value_or_error_t gethostbyname_async (const char *host, hostbyname_cb_t callback, nsapi_version_t version=NSAPI_UNSPEC)
 Translate a hostname to an IP address (asynchronous).
virtual nsapi_error_t gethostbyname_async_cancel (int id)
 Cancel asynchronous hostname translation.
virtual nsapi_error_t add_dns_server (const SocketAddress &address)
 Add a domain name server to list of servers to query.
virtual void attach (mbed::Callback< void(nsapi_event_t, intptr_t)> status_cb)
 Register callback for status reporting.
virtual nsapi_connection_status_t get_connection_status () const
 Get the connection status.
virtual nsapi_error_t set_blocking (bool blocking)
 Set blocking status of connect() which by default should be blocking.
virtual EthInterfaceethInterface ()
 Return pointer to an EthInterface.
virtual WiFiInterface * wifiInterface ()
 Return pointer to a WiFiInterface.
virtual MeshInterfacemeshInterface ()
 Return pointer to a MeshInterface.
virtual EMACInterfaceemacInterface ()
 Return pointer to an EMACInterface.

Static Public Member Functions

static CellularBase * get_default_instance ()
 Get the default cellular interface.

Protected Member Functions

 MBED_DEPRECATED_SINCE ("mbed-os-5.9","This API will be deprecated, use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead.") virtual void enable_hup(bool enable)
 Enable or disable hang-up detection.
virtual void enable_hup (bool enable)
 Enable or disable hang-up detection.
virtual void modem_init ()
 Sets the modem up for powering on.
virtual void modem_deinit ()
 Sets the modem in unplugged state.
virtual void modem_power_up ()
 Powers up the modem.
virtual void modem_power_down ()
 Powers down the modem.
virtual NetworkStack * get_stack ()
 Provide access to the underlying stack.
bool nwk_registration (uint8_t nwk_type=PACKET_SWITCHED)
 Starts network registration process.

Static Protected Member Functions

static CellularBase * get_target_default_instance ()
 Get the target's default cellular interface.

Friends

class InternetSocket
class UDPSocket
class TCPSocket

Detailed Description

UARTCellularInterface class.

This interface serves as the controller/driver for Cellular modems attached via a UART (tested with UBLOX_C027 and MTS_DRAGONFLY_F411RE).

It constructs a FileHandle and passes it back to its base class as well as overrides enable_hup() in the base class.

Definition at line 35 of file UARTCellularInterface.h.


Member Typedef Documentation

typedef mbed::Callback<void (nsapi_error_t result, SocketAddress *address) hostbyname_cb_t) [inherited]

Hostname translation callback (for use with gethostbyname_async()).

Callback will be called after DNS resolution completes or a failure occurs.

Note:
Callback should not take more than 10ms to execute, otherwise it might prevent underlying thread processing. A portable user of the callback should not make calls to network operations due to stack size limitations. The callback should not perform expensive operations such as socket recv/send calls or blocking operations.
Parameters:
resultNSAPI_ERROR_OK on success, negative error code on failure.
addressOn success, destination for the host SocketAddress.

Definition at line 178 of file NetworkInterface.h.


Member Function Documentation

nsapi_error_t add_dns_server ( const SocketAddress &  address ) [virtual, inherited]

Add a domain name server to list of servers to query.

Parameters:
addressAddress for the dns host.
Returns:
NSAPI_ERROR_OK on success, negative error code on failure.

Definition at line 73 of file NetworkInterface.cpp.

void attach ( mbed::Callback< void(nsapi_event_t, intptr_t)>  status_cb ) [virtual, inherited]

Register callback for status reporting.

The specified status callback function will be called on status changes on the network. The parameters on the callback are the event type and event-type dependent reason parameter.

Parameters:
status_cbThe callback for status changes.

Reimplemented in EasyCellularConnection, CellularNetwork, and EMACInterface.

Definition at line 78 of file NetworkInterface.cpp.

virtual CellularBase* cellularBase (  ) [virtual, inherited]

Return pointer to a CellularBase.

Returns:
Pointer to requested interface type or NULL if this class doesn't implement the interface.

Definition at line 110 of file CellularBase.h.

virtual nsapi_error_t connect ( const char *  sim_pin,
const char *  apn = 0,
const char *  uname = 0,
const char *  pwd = 0 
) [pure virtual, inherited]

Attempt to connect to a cellular network with a PIN and credentials.

Parameters:
sim_pinPIN for the SIM card.
apnAccess point name (optional).
unameUsername (optional).
pwdPassword (optional).
Returns:
NSAPI_ERROR_OK on success, or negative error code on failure.
virtual nsapi_error_t connect (  ) [pure virtual, inherited]

Attempt to connect to a cellular network.

If the SIM requires a PIN, and it is invalid or not set, NSAPI_ERROR_AUTH_ERROR is returned.

Returns:
NSAPI_ERROR_OK on success, or negative error code on failure.
virtual nsapi_error_t disconnect (  ) [pure virtual, inherited]

Stop the interface.

Returns:
NSAPI_ERROR_OK on success, or error code on failure.
virtual EMACInterface* emacInterface (  ) [virtual, inherited]

Return pointer to an EMACInterface.

Returns:
Pointer to requested interface type or NULL if this class doesn't implement the interface.

Reimplemented in EMACInterface.

Definition at line 280 of file NetworkInterface.h.

void enable_hup ( bool  enable ) [protected, virtual, inherited]

Enable or disable hang-up detection.

When in PPP data pump mode, it is helpful if the FileHandle will signal hang-up via POLLHUP, e.g., if the DCD line is deasserted on a UART. During command mode, this signaling is not desired. enable_hup() controls whether this function should be active.

Meant to be overridden.

Definition at line 278 of file PPPCellularInterface.cpp.

virtual EthInterface* ethInterface (  ) [virtual, inherited]

Return pointer to an EthInterface.

Returns:
Pointer to requested interface type or NULL if this class doesn't implement the interface.

Reimplemented in EthInterface.

Definition at line 248 of file NetworkInterface.h.

nsapi_connection_status_t get_connection_status (  ) const [virtual, inherited]

Get the connection status.

Returns:
The connection status (
See also:
nsapi_types.h).

Reimplemented in CellularNetwork, AT_CellularNetwork, and EMACInterface.

Definition at line 82 of file NetworkInterface.cpp.

MBED_WEAK CellularBase * get_default_instance (  ) [static, inherited]

Get the default cellular interface.

This is provided as a weak method so applications can override. Default behaviour is to get the target's default interface, if any.

Returns:
pointer to interface, if any.

Definition at line 43 of file NetworkInterfaceDefaults.cpp.

virtual const char* get_gateway (  ) [pure virtual, inherited]

Get the local gateways.

Returns:
Null-terminated representation of the local gateway, or null if no network mask has been received.
virtual const char* get_ip_address (  ) [pure virtual, inherited]

Get the local IP address.

Returns:
Null-terminated representation of the local IP address, or null if no IP address has been received.
const char * get_mac_address (  ) [virtual, inherited]

Get the local MAC address.

Provided MAC address is intended for info or debug purposes and may be not provided if the underlying network interface does not provide a MAC address.

Returns:
Null-terminated representation of the local MAC address or null if no MAC address is available.

Reimplemented in EMACInterface.

Definition at line 23 of file NetworkInterface.cpp.

virtual const char* get_netmask (  ) [pure virtual, inherited]

Get the local network mask.

Returns:
Null-terminated representation of the local network mask, or null if no network mask has been received.
NetworkStack * get_stack ( void   ) [protected, virtual, inherited]

Provide access to the underlying stack.

Get a pointer to the underlying network stack.

Returns:
The underlying network stack

Implements NetworkInterface.

Definition at line 824 of file PPPCellularInterface.cpp.

MBED_WEAK CellularBase * get_target_default_instance (  ) [static, protected, inherited]

Get the target's default cellular interface.

This is provided as a weak method so targets can override. The default implementation configures and returns the OnBoardModemInterface, if available.

Returns:
Pointer to interface, if any.

Definition at line 67 of file OnboardCellularInterface.cpp.

nsapi_error_t gethostbyname ( const char *  host,
SocketAddress *  address,
nsapi_version_t  version = NSAPI_UNSPEC 
) [virtual, inherited]

Translate a hostname to an IP address with specific version.

The hostname may be either a domain name or an IP address. If the hostname is an IP address, no network transactions will be performed.

If no stack-specific DNS resolution is provided, the hostname will be resolve using a UDP socket on the stack.

Parameters:
hostHostname to resolve.
addressPointer to a SocketAddress to store the result.
versionIP version of address to resolve, NSAPI_UNSPEC indicates version is chosen by the stack (defaults to NSAPI_UNSPEC).
Returns:
NSAPI_ERROR_OK on success, negative error code on failure.

Definition at line 58 of file NetworkInterface.cpp.

nsapi_value_or_error_t gethostbyname_async ( const char *  host,
hostbyname_cb_t  callback,
nsapi_version_t  version = NSAPI_UNSPEC 
) [virtual, inherited]

Translate a hostname to an IP address (asynchronous).

The hostname may be either a domain name or a dotted IP address. If the hostname is an IP address, no network transactions will be performed.

If no stack-specific DNS resolution is provided, the hostname will be resolve using a UDP socket on the stack.

Call is non-blocking. Result of the DNS operation is returned by the callback. If this function returns failure, callback will not be called. In case result is success (IP address was found from DNS cache), callback will be called before function returns.

Parameters:
hostHostname to resolve.
callbackCallback that is called for result.
versionIP version of address to resolve, NSAPI_UNSPEC indicates version is chosen by the stack (defaults to NSAPI_UNSPEC).
Returns:
0 on immediate success, negative error code on immediate failure or a positive unique id that represents the hostname translation operation and can be passed to cancel.

Definition at line 63 of file NetworkInterface.cpp.

nsapi_error_t gethostbyname_async_cancel ( int  id ) [virtual, inherited]

Cancel asynchronous hostname translation.

When translation is cancelled, callback will not be called.

Parameters:
idUnique id of the hostname translation operation (returned by gethostbyname_async)
Returns:
NSAPI_ERROR_OK on success, negative error code on failure.

Definition at line 68 of file NetworkInterface.cpp.

virtual bool is_connected (  ) [pure virtual, inherited]

Check if the connection is currently established.

Returns:
`true` if the cellular module have successfully acquired a carrier and is connected to an external packet data network using PPP, `false` otherwise.
MBED_DEPRECATED_SINCE ( "mbed-os-5.9"  ,
"This API will be   deprecated,
use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead."   
) const [inherited]

Set the Cellular network credentials.

Please check documentation of connect() for default behaviour of APN settings.

Parameters:
apnAccess point name
unameoptionally, Username
pwdoptionally, password
MBED_DEPRECATED_SINCE ( "mbed-os-5.9"  ,
"This API will be   deprecated,
use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead."   
)

Destructor.

Reimplemented from PPPCellularInterface.

MBED_DEPRECATED_SINCE ( "mbed-os-5.9"  ,
"This API will be   deprecated,
use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead."   
)

Constructor.

Reimplemented from PPPCellularInterface.

MBED_DEPRECATED_SINCE ( "mbed-os-5.9"  ,
"This API will be   deprecated,
use mbed-os/features/cellular/easy_cellular/EasyCellularConnection.h instead."   
) [protected]

Enable or disable hang-up detection.

When in PPP data pump mode, it is helpful if the FileHandle will signal hang-up via POLLHUP, e.g., if the DCD line is deasserted on a UART. During command mode, this signaling is not desired. enable_hup() controls whether this function should be active.

Reimplemented from PPPCellularInterface.

virtual MeshInterface* meshInterface (  ) [virtual, inherited]

Return pointer to a MeshInterface.

Returns:
Pointer to requested interface type or NULL if this class doesn't implement the interface.

Reimplemented in MeshInterface.

Definition at line 264 of file NetworkInterface.h.

void modem_deinit (  ) [protected, virtual, inherited]

Sets the modem in unplugged state.

modem_deinit() will be equivalent to pulling the plug off of the device, i.e., detaching power and serial port. This puts the modem in lowest power state. It is meant to be overridden. If the modem is on-board, an implementation of onboard_modem_api.h will override this. If the the modem is a plugged-in device (i.e., a shield type component), the driver deriving from this class will override.

Definition at line 288 of file PPPCellularInterface.cpp.

void modem_init (  ) [protected, virtual, inherited]

Sets the modem up for powering on.

modem_init() is equivalent to plugging in the device, e.g., attaching power and serial port. It is meant to be overridden. If the modem is on-board, an implementation of onboard_modem_api.h will override this. If the the modem is a plugged-in device (i.e., a shield type component), the driver deriving from this class will override.

Definition at line 283 of file PPPCellularInterface.cpp.

void modem_power_down (  ) [protected, virtual, inherited]

Powers down the modem.

modem_power_down() is equivalent to turning off the modem by button press. It is meant to be overridden. If the modem is on-board, an implementation of onboard_modem_api.h will override this. If the the modem is a plugged-in device (i.e., a shield type component), the driver deriving from this class will override.

Definition at line 298 of file PPPCellularInterface.cpp.

void modem_power_up (  ) [protected, virtual, inherited]

Powers up the modem.

modem_power_up() is equivalent to pressing the soft power button. The driver may repeat this if the modem is not responsive to AT commands. It is meant to be overridden. If the modem is on-board, an implementation of onboard_modem_api.h will override this. If the the modem is a plugged-in device (i.e., a shield type component), the driver deriving from this class will override.

Definition at line 293 of file PPPCellularInterface.cpp.

bool nwk_registration ( uint8_t  nwk_type = PACKET_SWITCHED ) [protected, inherited]

Starts network registration process.

Potential users could be subclasses who are not network interface but would like to use CellularBase infrastructure to register with a cellular network, e.g., an SMS extension to CellularBase.

Parameters:
nwk_typetype of network to connect, defaults to packet switched network
Returns:
true if registration is successful

Definition at line 335 of file PPPCellularInterface.cpp.

nsapi_error_t set_blocking ( bool  blocking ) [virtual, inherited]

Set blocking status of connect() which by default should be blocking.

Parameters:
blockingUse true to make connect() blocking.
Returns:
NSAPI_ERROR_OK on success, negative error code on failure.

Reimplemented in CellularNetwork, AT_CellularNetwork, and EMACInterface.

Definition at line 87 of file NetworkInterface.cpp.

virtual void set_credentials ( const char *  apn,
const char *  uname = 0,
const char *  pwd = 0 
) [pure virtual, inherited]

Set the cellular network credentials.

Please check documentation of connect() for default behaviour of APN settings.

Parameters:
apnAccess point name.
unameUsername (optional).
pwdPassword (optional).
nsapi_error_t set_dhcp ( bool  dhcp ) [virtual, inherited]

Enable or disable DHCP on connecting the network.

Enabled by default unless a static IP address has been assigned. Requires that the network is disconnected.

Parameters:
dhcpTrue to enable DHCP.
Returns:
NSAPI_ERROR_OK on success, negative error code on failure.

Reimplemented in EMACInterface.

Definition at line 48 of file NetworkInterface.cpp.

nsapi_error_t set_network ( const char *  ip_address,
const char *  netmask,
const char *  gateway 
) [virtual, inherited]

Configure this network interface to use a static IP address.

Implicitly disables DHCP, which can be enabled in set_dhcp. Requires that the network is disconnected.

Parameters:
ip_addressNull-terminated representation of the local IP address
netmaskNull-terminated representation of the local network mask
gatewayNull-terminated representation of the local gateway
Returns:
NSAPI_ERROR_OK on success, negative error code on failure

Reimplemented in EMACInterface.

Definition at line 43 of file NetworkInterface.cpp.

virtual void set_sim_pin ( const char *  sim_pin ) [pure virtual, inherited]

Set the PIN code for SIM card.

Parameters:
sim_pinPIN for the SIM card.
virtual WiFiInterface* wifiInterface (  ) [virtual, inherited]

Return pointer to a WiFiInterface.

Returns:
Pointer to requested interface type or NULL if this class doesn't implement the interface.

Definition at line 256 of file NetworkInterface.h.