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BLE: Extract computation of minimumSupervisionTimeout.

pull/8738/head
Vincent Coubard 2018-11-23 21:42:02 +00:00
parent 6cb7645846
commit 4058f0908a
1 changed files with 12 additions and 2 deletions
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14
features/FEATURE_BLE/source/generic/GenericGap.cpp
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@ -405,6 +405,16 @@ static bool is_advertising_params_valid(const GapAdvertisingParams &params)
return true;
}
microsecond_t minSupervisionTimeout(
const conn_interval_t &maxConnectionInterval,
const slave_latency_t &slaveLatency
)
{
// see BLUETOOTH SPECIFICATION Version 5.0 | Vol 2, Part E
// Section 7.8.12 LE Create Connection
return (1 + slaveLatency.value()) * maxConnectionInterval * 2;
}
} // end of anonymous namespace
GenericGap::GenericGap(
@ -677,7 +687,7 @@ ble_error_t GenericGap::updateConnectionParameters(
conn_event_length_t maxConnectionEventLength
)
{
if (supervisionTimeout <= (1 + slaveLatency.value()) * maxConnectionInterval * 2) {
if (supervisionTimeout <= minSupervisionTimeout(maxConnectionInterval, slaveLatency)) {
return BLE_ERROR_INVALID_PARAM;
}
@ -702,7 +712,7 @@ ble_error_t GenericGap::acceptConnectionParametersUpdate(
conn_event_length_t maxConnectionEventLength
)
{
if (supervisionTimeout <= (1 + slaveLatency.value()) * maxConnectionInterval * 2) {
if (supervisionTimeout <= minSupervisionTimeout(maxConnectionInterval, slaveLatency)) {
return BLE_ERROR_INVALID_PARAM;
}