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allow read commands with length

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This commit is contained in:
MichaelDvP
2021-03-30 11:57:37 +02:00
parent 5cf41bdce0
commit 9771ea8f2d
7 changed files with 24 additions and 21 deletions
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11
src/telegram.cpp
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@@ -419,7 +419,7 @@ void TxService::add(uint8_t operation, const uint8_t * data, const uint8_t lengt
}
// build header. src, dest and offset have fixed positions
uint8_t src = data[0];
uint8_t src = ems_bus_id(); // data[0]; we can only send data with own bus_id.
uint8_t dest = data[1];
uint8_t offset = data[3];
@@ -485,11 +485,16 @@ void TxService::add(uint8_t operation, const uint8_t * data, const uint8_t lengt
}
// send a Tx telegram to request data from an EMS device
void TxService::read_request(const uint16_t type_id, const uint8_t dest, const uint8_t offset) {
void TxService::read_request(const uint16_t type_id, const uint8_t dest, const uint8_t offset, const uint8_t length) {
LOG_DEBUG(F("Tx read request to device 0x%02X for type ID 0x%02X"), dest, type_id);
uint8_t message_data[1] = {EMS_MAX_TELEGRAM_LENGTH}; // request all data, 32 bytes
add(Telegram::Operation::TX_READ, dest, type_id, offset, message_data, 1, 0);
// if length set, publish result and set telegram to front
if (length) {
message_data[0] = length;
EMSESP::set_read_id(type_id);
}
add(Telegram::Operation::TX_READ, dest, type_id, offset, message_data, 1, 0, length != 0);
}
// Send a raw telegram to the bus, telegram is a text string of hex values