/**@brief Process ANT message on ANT scanner
*
* @param[in] p_ant_event ANT message content.
*/
void continuous_scan_event_handler(ant_evt_t * p_ant_evt)
{
uint32_t err_code;
uint8_t message_rssi;
uint16_t message_device_number;
ANT_MESSAGE * p_ant_message = (ANT_MESSAGE *) p_ant_evt->msg.evt_buffer;
switch (p_ant_evt->event)
{
case EVENT_RX:
if (p_ant_message->ANT_MESSAGE_aucPayload[0] == DEVICE_STATUS_PAGE)
{
LEDS_INVERT(BSP_LED_1_MASK);
if (p_ant_message->ANT_MESSAGE_stExtMesgBF.bANTDeviceID &&
p_ant_message->ANT_MESSAGE_stExtMesgBF.bANTRssi)
{
message_device_number =
(uint16_t)(p_ant_message->ANT_MESSAGE_aucExtData[0] |
((uint16_t)p_ant_message->ANT_MESSAGE_aucExtData[1] << 8));
message_rssi = p_ant_message->ANT_MESSAGE_aucExtData[5];
node_to_list_add(message_device_number, message_rssi);
}
}
break;
case EVENT_TRANSFER_TX_COMPLETED:
LEDS_OFF(BSP_LED_0_MASK | BSP_LED_1_MASK);
err_code = sd_ant_channel_close(ANT_SCAN_CHANNEL_NUMBER);
APP_ERROR_CHECK(err_code);
break;
case EVENT_TRANSFER_TX_FAILED:
if (m_retries > 0)
{
command_send();
m_retries--;
}
else
{
LEDS_OFF(BSP_LED_0_MASK | BSP_LED_1_MASK);
err_code = sd_ant_channel_close(ANT_SCAN_CHANNEL_NUMBER);
APP_ERROR_CHECK(err_code);
}
break;
default:
break; // No implementation needed
}
}
/**@brief Application's Stack BLE event handler.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t err_code = NRF_SUCCESS;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
nrf_gpio_pin_set(CONNECTED_LED_PIN_NO);
nrf_gpio_pin_clear(ADVERTISING_LED_PIN_NO);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
break;
case BLE_GAP_EVT_DISCONNECTED:
nrf_gpio_pin_clear(CONNECTED_LED_PIN_NO);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
// Need to close the ANT channel to make it safe to write bonding information to flash
err_code = sd_ant_channel_close(ANT_HRMRX_ANT_CHANNEL);
APP_ERROR_CHECK(err_code);
// Note: Bonding information will be stored, advertising will be restarted and the
// ANT channel will be reopened when ANT event CHANNEL_CLOSED is received.
break;
#ifndef BONDING_ENABLE
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
NULL);
#endif // BONDING_ENABLE
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_TIMEOUT:
if (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISEMENT)
{
nrf_gpio_pin_clear(ADVERTISING_LED_PIN_NO);
// Go to system-off mode (this function will not return; wakeup will cause a reset)
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
}
break;
#ifndef BONDING_ENABLE
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0);
APP_ERROR_CHECK(err_code);
break;
#endif // BONDING_ENABLE
default:
// No implementation needed.
break;
}
}
/**@brief Sets the state machine to the specified state.
*/
static void ascmm_set_state(ascmm_states_t new_state)
{
uint32_t err_code;
if(new_state != m_state)
{
switch (new_state)
{
case ASCMM_OFF:
{
//Close the channel
err_code = sd_ant_channel_close(m_discovery_channel_number);
APP_ERROR_CHECK(err_code);
break;
}
case DISCOVERY:
{
if (m_state != ASCMM_OFF)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_state = new_state;
//Open the discovery channel
err_code = sd_ant_channel_open(m_discovery_channel_number);
break;
}
case CONNECTED:
{
if (m_state != DISCOVERY)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_state = new_state;
//Close the channel
err_code = sd_ant_channel_close(m_discovery_channel_number);
APP_ERROR_CHECK(err_code);
//Assign the connection channel
err_code = sd_ant_channel_assign(m_ant_connected_parameters.channel_number,
m_ant_connected_parameters.channel_type,
m_ant_connected_parameters.network_number, 0);
APP_ERROR_CHECK(err_code);
//Set channel id
err_code = sd_ant_channel_id_set (m_ant_connected_parameters.channel_number,
m_connection_device_number,
m_ant_connected_parameters.device_type,
m_ant_connected_parameters.tx_type);
APP_ERROR_CHECK(err_code);
//Set radio frequency
err_code = sd_ant_channel_radio_freq_set (m_ant_connected_parameters.channel_number,
m_ant_connected_parameters.rf_frequency);
APP_ERROR_CHECK(err_code);
if(m_ant_connected_parameters.channel_type == CHANNEL_TYPE_SLAVE)
{
//Configure search timeout for slave channel
err_code = sd_ant_channel_rx_search_timeout_set(m_ant_connected_parameters.channel_number,
ASCMM_SEARCH_TIMEOUT);
APP_ERROR_CHECK(err_code);
err_code = sd_ant_channel_low_priority_rx_search_timeout_set(m_ant_connected_parameters.channel_number,
ASCMM_LP_SEARCH_TIMEOUT);
APP_ERROR_CHECK(err_code);
}
else
{
// Configure Tx power for master chanel
err_code = sd_ant_channel_radio_tx_power_set(m_ant_connected_parameters.channel_number,
m_ant_connected_parameters.tx_power, 0);
APP_ERROR_CHECK(err_code);
}
err_code = sd_ant_channel_open(m_ant_connected_parameters.channel_number);
APP_ERROR_CHECK(err_code);
break;
}
default:
{
//if the new state was not recognized, return to avoid setting the state changed event
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
}
asc_event_set(&m_asc_event_flags, EVENT_ASC_STATE_CHANGED);
}
//lint --e{438}
}
/**@brief Send command to node with highest RSSI.
* If a global command was selected, send to all.
*/
static void send_command(void)
{
uint16_t device_number = 0;
uint8_t max_rssi = 0;
uint32_t err_code;
// Loop through nodes and pick highest rssi node
for(int node = 0; node < MAX_DEVICES; node++)
{
if(m_node_list[node].device_number != 0)
{
if(m_node_list[node].rssi > max_rssi)
{
max_rssi = m_node_list[node].rssi;
device_number = m_node_list[node].device_number;
}
}
}
// Do not send the command if no device was found
// Close scanning channel and return
if( device_number == 0 )
{
LEDS_ON(BSP_LED_2_MASK);
LEDS_OFF(BSP_LED_0_MASK);
err_code = sd_ant_channel_close(ANT_SCAN_CHANNEL_NUMBER);
APP_ERROR_CHECK(err_code);
return;
}
else
{
LEDS_OFF(BSP_LED_2_MASK);
}
err_code = sd_ant_channel_id_set(ANT_RESPONSE_CHANNEL_NUMBER,
device_number,
ANT_DEVICE_TYPE,
ANT_TRANSMISSION_TYPE);
APP_ERROR_CHECK(err_code);
switch( m_command )
{
case COMMAND_STATE_ON:
m_command = COMMAND_LIGHT_ON;
break;
case COMMAND_STATE_OFF:
m_command = COMMAND_LIGHT_OFF;
break;
case COMMAND_STATE_ALL_ON:
device_number = ADDRESS_ALL_NODES;
m_command = COMMAND_LIGHT_ON;
break;
case COMMAND_STATE_ALL_OFF:
device_number = ADDRESS_ALL_NODES;
m_command = COMMAND_LIGHT_OFF;
break;
default:
break;
}
m_tx_buffer[0] = MOBILE_COMMAND_PAGE;
m_tx_buffer[1] = 0xFF;
m_tx_buffer[2] = device_number;
m_tx_buffer[3] = 0xFF;
m_tx_buffer[4] = 0xFF;
m_tx_buffer[5] = 0xFF;
m_tx_buffer[6] = 0xFF;
m_tx_buffer[7] = m_command;
err_code = sd_ant_acknowledge_message_tx(ANT_RESPONSE_CHANNEL_NUMBER,
ANT_STANDARD_DATA_PAYLOAD_SIZE,
m_tx_buffer);
APP_ERROR_CHECK(err_code);
}
/**@brief Sets the state machine to the applicable state
*/
static void set_state(connection_states_t new_state)
{
uint32_t err_code;
if(m_state != new_state)
{
switch(new_state)
{
case PHONE_OFF:
{
uint8_t channel_status;
err_code = sd_ant_channel_status_get(m_channel_number, &channel_status);
APP_ERROR_CHECK(err_code);
m_state = new_state;
switch(channel_status)
{
case STATUS_SEARCHING_CHANNEL:
//Intentional fallthrough
case STATUS_TRACKING_CHANNEL:
{
err_code = sd_ant_channel_close(m_channel_number);
APP_ERROR_CHECK(err_code);
} //Intentional fallthrough
case STATUS_ASSIGNED_CHANNEL:
{
err_code = sd_ant_channel_unassign(m_channel_number);
APP_ERROR_CHECK(err_code);
break;
}
default:
{
return;
}
}
break;
}
case PHONE_ON:
{
//uint32_t err_code;
if(m_state == PHONE_OFF)
{
//Open the channel
err_code = sd_ant_channel_open(m_channel_number);
APP_ERROR_CHECK(err_code);
}
m_state = new_state;
//Prepare the buffer
asc_encode_device_availability_page(m_neighbor_id, m_tx_buffer);
err_code = sd_ant_broadcast_message_tx (m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
break;
}
default:
{
return;
}
}
}
}
/**@brief Sets the state machine to the specified state.
*/
static void ascs_set_state(ascs_states_t new_state)
{
uint32_t err_code;
if(m_state != new_state)
{
switch (new_state)
{
case OFF:
{
m_state = new_state;
err_code = sd_ant_channel_close(m_channel_number);
APP_ERROR_CHECK(err_code);
break;
}
case SEARCHING:
{
//Check if we need to re-open the channel
if (m_state == OFF)
{
//Open slave channel
err_code = sd_ant_channel_open(m_channel_number);
APP_ERROR_CHECK(err_code);
}
m_state = new_state;
m_groups_assigned = NO_GROUPS;
m_shared_address = SEARCH_ADDRESS;
asc_encode_set_shared_address(m_shared_address, m_tx_buffer);
err_code = sd_ant_broadcast_message_tx (m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
break;
}
case REQUESTING:
{
if(m_state != SEARCHING)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_state = new_state;
asc_encode_request_address_page(m_serial_number, m_tx_buffer);
err_code = sd_ant_acknowledge_message_tx(m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
break;
}
case WAITING:
{
if(m_state != REQUESTING)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_state = new_state;
m_shared_address = REGISTER_ADDRESS;
asc_encode_set_shared_address(m_shared_address, m_tx_buffer);
err_code = sd_ant_broadcast_message_tx (m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
break;
}
case CONFIRMING:
{
if(m_state != WAITING)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_state = new_state;
m_timeout_counter = 0;
asc_confirm_acquire_paramters_t params = {
.serial_number = m_serial_number,
.model_number = MODEL_NUMBER,
.hw_revision = HW_REVISION,
.sw_revision = SW_REVISION
};
asc_encode_confirm_acquire_page(params, m_tx_buffer);
err_code = sd_ant_acknowledge_message_tx(m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
break;
}
case ASSIGNED:
{
if(m_state != CONFIRMING)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
ascs_states_t previous_state = m_state;
m_state = new_state;
m_timeout_counter = 0;
if(previous_state == CONFIRMING)
{
asc_encode_set_shared_address(m_shared_address, m_tx_buffer);
err_code = sd_ant_broadcast_message_tx (m_channel_number, ANT_STANDARD_DATA_PAYLOAD_SIZE, m_tx_buffer);
APP_ERROR_CHECK(err_code);
}
break;
}
default:
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
}
asc_event_set(&m_asc_event_flags, EVENT_ASC_STATE_CHANGED);
}
}
/**@brief Sets the state machine to the specified state.
*/
static void ascm_set_state(ascm_states_t new_state)
{
uint32_t err_code;
if (new_state != m_state)
{
switch (new_state)
{
case ASCM_OFF:
{
//Close the channel
m_previous_state = m_state;
m_state = new_state;
err_code = sd_ant_channel_close(m_channel_number);
APP_ERROR_CHECK(err_code);
break;
}
case ADDRESS_AVAILABLE:
{
if (m_state == ASCM_OFF)
{
//Open the channel
err_code = sd_ant_channel_open(m_channel_number);
APP_ERROR_CHECK(err_code);
}
m_previous_state = m_state;
m_state = new_state;
m_is_address_available = !deviceregistry_is_full(pm_device_registry);
ascm_send_address_available_page();
break;
}
case HANDSHAKING:
{
if (m_state != ADDRESS_AVAILABLE)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_previous_state = m_state;
m_state = new_state;
//there is no need to check for validity of this shared address, as there must be a free address available
//to be in the handshaking state at all.
m_handshaking_device.shared_address = deviceregistry_get_next_free_shared_address(pm_device_registry);
m_msg_counter_handshaking = 0;
ascm_send_busy_acquiring_page();
break;
}
case POLLING:
{
if (m_state != ADDRESS_AVAILABLE && m_state != SENDING_COMMAND)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_previous_state = m_state;
m_state = new_state;
//If the previous state was not SENDING_COMMAND, start from the beginning of the polling cycle.
//Otherwise, allow the process_message handler to finish the cycle
if (m_previous_state != SENDING_COMMAND)
{
m_current_shared_address_polling = deviceregistry_get_first_registered_shared_address(pm_device_registry);
if (m_current_shared_address_polling != INVALID_SHARED_ADDRESS)
{
m_msg_counter_polling = 0;
send_polling_message();
}
else
{
//no devices are registered, go back to address available
ascm_set_state(ADDRESS_AVAILABLE);
}
}
break;
}
case SENDING_COMMAND:
{
//Only allow sending commands if the device is in the
//Address available or polling states
if (m_state != ADDRESS_AVAILABLE && m_state != POLLING)
{
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
m_previous_state = m_state;
m_state = new_state;
m_msg_counter_sending_command = 0;
break;
}
default:
{
//if the new state was not recognized, return to avoid setting the state changed event
asc_event_set(&m_asc_event_flags, EVENT_ASC_DEVICE_IN_WRONG_STATE);
return;
}
}
asc_event_set(&m_asc_event_flags, EVENT_ASC_STATE_CHANGED);
}
}
