mbed-os/features/nanostack/mbed-mesh-api/source/ThreadInterface.cpp

263 lines
7.3 KiB
C++

#include "ThreadInterface.h"
#include "include/thread_tasklet.h"
#include "callback_handler.h"
#include "mesh_system.h"
#include "randLIB.h"
#include "ns_trace.h"
#define TRACE_GROUP "nsth"
class Nanostack::ThreadInterface : public Nanostack::MeshInterface
{
public:
virtual nsapi_error_t bringup(bool dhcp, const char *ip,
const char *netmask, const char *gw,
nsapi_ip_stack_t stack = IPV6_STACK,
bool blocking = true);
virtual nsapi_error_t bringdown();
friend Nanostack;
friend class ::ThreadInterface;
private:
ThreadInterface(NanostackRfPhy &phy) : MeshInterface(phy), eui64_set(false) { }
/*
* \brief Initialization of the interface.
* \return MESH_ERROR_NONE on success.
* \return MESH_ERROR_PARAM when input parameters are illegal (also in case when RF device is already associated to other interface)
* \return MESH_ERROR_MEMORY in case of memory error
* \return MESH_ERROR_UNKNOWN in other error cases
*/
mesh_error_t init();
/**
* \brief Connect interface to the mesh network
* \return MESH_ERROR_NONE on success.
* \return MESH_ERROR_PARAM in case of illegal parameters.
* \return MESH_ERROR_MEMORY in case of memory error.
* \return MESH_ERROR_STATE if interface is already connected to network.
* \return MESH_ERROR_UNKNOWN in case of unspecified error.
* */
mesh_error_t mesh_connect();
/**
* \brief Disconnect interface from the mesh network
* \return MESH_ERROR_NONE on success.
* \return MESH_ERROR_UNKNOWN in case of error.
* */
mesh_error_t mesh_disconnect();
/**
* \brief Sets the eui64 for the device configuration.
* By default this value is read from the radio driver.
* The value must be set before calling the connect function.
* */
void device_eui64_set(const uint8_t *eui64);
/**
* \brief Reads the eui64 from the device configuration.
* */
void device_eui64_get(uint8_t *eui64);
/**
* \brief sets the PSKd for the device configuration.
* The default value is overwritten, which is defined in the mbed_lib.json file in the mesh-api
* The value must be set before calling the connect function.
* \return MESH_ERROR_NONE on success.
* \return MESH_ERROR_PARAM in case of illegal parameters.
* \return MESH_ERROR_MEMORY in case of memory error.
* */
mesh_error_t device_pskd_set(const char *pskd);
bool eui64_set;
};
Nanostack::ThreadInterface *ThreadInterface::get_interface() const
{
return static_cast<Nanostack::ThreadInterface*>(_interface);
}
int ThreadInterface::connect()
{
if (!_interface) {
_interface = new (nothrow) Nanostack::ThreadInterface(*_phy);
if (!_interface) {
return NSAPI_ERROR_NO_MEMORY;
}
_interface->attach(_connection_status_cb);
}
return _interface->bringup(false, NULL, NULL, NULL, IPV6_STACK, _blocking);
}
nsapi_error_t Nanostack::ThreadInterface::bringup(bool dhcp, const char *ip,
const char *netmask, const char *gw,
nsapi_ip_stack_t stack, bool blocking)
{
if (_connect_status == NSAPI_STATUS_GLOBAL_UP || _connect_status == NSAPI_STATUS_LOCAL_UP) {
return NSAPI_ERROR_IS_CONNECTED;
} else if (_connect_status == NSAPI_STATUS_CONNECTING) {
return NSAPI_ERROR_ALREADY;
}
if (stack == IPV4_STACK) {
return NSAPI_ERROR_UNSUPPORTED;
}
if (register_phy() < 0) {
return NSAPI_ERROR_DEVICE_ERROR;
}
nanostack_lock();
_blocking = blocking;
// After the RF is up, we can seed the random from it.
randLIB_seed_random();
mesh_error_t status = init();
if (status != MESH_ERROR_NONE) {
nanostack_unlock();
return map_mesh_error(status);
}
status = mesh_connect();
if (status != MESH_ERROR_NONE) {
nanostack_unlock();
return map_mesh_error(status);
}
// Release mutex before blocking
nanostack_unlock();
// In Thread wait connection for ever:
// -routers will create new network and get local connectivity
// -end devices will get connectivity once attached to existing network
// -devices without network settings gets connectivity once commissioned and attached to network
_connect_status = NSAPI_STATUS_CONNECTING;
if (_connection_status_cb) {
_connection_status_cb(NSAPI_EVENT_CONNECTION_STATUS_CHANGE, NSAPI_STATUS_CONNECTING);
}
if (_blocking) {
int32_t count = connect_semaphore.wait(osWaitForever);
if (count <= 0) {
return NSAPI_ERROR_DHCP_FAILURE; // sort of...
}
}
return 0;
}
int ThreadInterface::disconnect()
{
return _interface->bringdown();
}
nsapi_error_t Nanostack::ThreadInterface::bringdown()
{
nanostack_lock();
mesh_error_t status = mesh_disconnect();
nanostack_unlock();
return map_mesh_error(status);
}
mesh_error_t Nanostack::ThreadInterface::init()
{
thread_tasklet_init();
__mesh_handler_set_callback(this);
device_eui64_get(NULL); // Ensure we've selected the EUI-64 - this does it
interface_id = thread_tasklet_network_init(_device_id);
if (interface_id == -2) {
return MESH_ERROR_PARAM;
} else if (interface_id == -3) {
return MESH_ERROR_MEMORY;
} else if (interface_id < 0) {
return MESH_ERROR_UNKNOWN;
}
return MESH_ERROR_NONE;
}
mesh_error_t Nanostack::ThreadInterface::mesh_connect()
{
int8_t status;
tr_debug("connect()");
status = thread_tasklet_connect(&__mesh_handler_c_callback, interface_id);
if (status >= 0) {
return MESH_ERROR_NONE;
} else if (status == -1) {
return MESH_ERROR_PARAM;
} else if (status == -2) {
return MESH_ERROR_MEMORY;
} else if (status == -3) {
return MESH_ERROR_STATE;
} else {
return MESH_ERROR_UNKNOWN;
}
}
mesh_error_t Nanostack::ThreadInterface::mesh_disconnect()
{
int8_t status;
status = thread_tasklet_disconnect(true);
if (status >= 0) {
return MESH_ERROR_NONE;
}
return MESH_ERROR_UNKNOWN;
}
void ThreadInterface::device_eui64_set(const uint8_t *eui64)
{
get_interface()->device_eui64_set(eui64);
}
void ThreadInterface::device_eui64_get(uint8_t *eui64)
{
get_interface()->device_eui64_get(eui64);
}
void Nanostack::ThreadInterface::device_eui64_set(const uint8_t *eui64)
{
eui64_set = true;
thread_tasklet_device_eui64_set(eui64);
}
void Nanostack::ThreadInterface::device_eui64_get(uint8_t *eui64)
{
if (!eui64_set) {
uint8_t eui64_buf[8];
get_phy().get_mac_address(eui64_buf);
device_eui64_set(eui64_buf);
}
if (eui64) {
thread_tasklet_device_eui64_get(eui64);
}
}
mesh_error_t ThreadInterface::device_pskd_set(const char *pskd)
{
return get_interface()->device_pskd_set(pskd);
}
mesh_error_t Nanostack::ThreadInterface::device_pskd_set(const char *pskd)
{
return (mesh_error_t)thread_tasklet_device_pskd_set(pskd);
}
#define THREAD 0x2345
#if MBED_CONF_NSAPI_DEFAULT_MESH_TYPE == THREAD && DEVICE_802_15_4_PHY
MBED_WEAK MeshInterface *MeshInterface::get_target_default_instance()
{
static ThreadInterface thread(NanostackRfPhy::get_default_instance());
return thread;
}
#endif