// Set senderid, packetcounter and CRC into the partly filled packet, encrypt it using the given AES key number and send it.
void send_packet(uint8_t aes_key_nr, uint8_t packet_len)
{
pkg_header_set_senderid(device_id);
inc_packetcounter();
pkg_header_set_packetcounter(packetcounter);
// set CRC32
pkg_header_set_crc32(crc32(bufx + 4, packet_len - 4));
// load AES key (0 is first AES key)
if (aes_key_nr >= aes_key_count)
{
aes_key_nr = aes_key_count - 1;
}
e2p_basestation_get_aeskey(aes_key_nr, aes_key);
// show info
decode_data(packet_len);
// encrypt and send
__PACKETSIZEBYTES = packet_len;
rfm12_send_bufx();
}
// process message "brightness"
void process_brightness(MessageTypeEnum messagetype)
{
// "Set" or "SetGet" -> modify dimmer state and abort any running animation
if ((messagetype == MESSAGETYPE_SET) || (messagetype == MESSAGETYPE_SETGET))
{
start_brightness = end_brightness = msg_dimmer_brightness_get_brightness();
UART_PUTF("Requested Brightness: %u%%;", start_brightness);
animation_length = 0;
animation_mode = 0;
animation_position = 0;
setPWMDutyCyclePercent(start_brightness);
/* TODO: Write to EEPROM (?)
// write back switch state to EEPROM
switch_state[i] = req_state;
switch_timeout[i] = req_timeout;
eeprom_write_word((uint16_t*)EEPROM_POS_SWITCH_STATE + i * 2, u16);
*/
}
// remember some values before the packet buffer is destroyed
uint32_t acksenderid = pkg_header_get_senderid();
uint32_t ackpacketcounter = pkg_header_get_packetcounter();
inc_packetcounter();
// "Set" -> send "Ack"
if (messagetype == MESSAGETYPE_SET)
{
pkg_header_init_dimmer_brightness_ack();
UART_PUTS("Sending Ack\r\n");
}
// "Get" or "SetGet" -> send "AckStatus"
else
{
pkg_header_init_dimmer_brightness_ackstatus();
// set message data
msg_dimmer_brightness_set_brightness(start_brightness);
UART_PUTS("Sending AckStatus\r\n");
}
// set common fields
pkg_header_set_senderid(device_id);
pkg_header_set_packetcounter(packetcounter);
pkg_headerext_common_set_acksenderid(acksenderid);
pkg_headerext_common_set_ackpacketcounter(ackpacketcounter);
pkg_headerext_common_set_error(false); // FIXME: Move code for the Ack to a function and also return an Ack when errors occur before!
pkg_header_calc_crc32();
rfm12_send_bufx();
}
void send_prepared_message(void)
{
inc_packetcounter();
pkg_header_set_senderid(device_id);
pkg_header_set_packetcounter(packetcounter);
rfm12_send_bufx();
rfm12_tick(); // send packet, and then WAIT SOME TIME BEFORE GOING TO SLEEP (otherwise packet would not be sent)
led_blink(200, 0, 1);
}
void send_version_status(void)
{
inc_packetcounter();
UART_PUTF4("Sending Version: v%u.%u.%u (%08lx)\r\n", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH, VERSION_HASH);
// Set packet content
pkg_header_init_generic_version_status();
pkg_header_set_senderid(device_id);
pkg_header_set_packetcounter(packetcounter);
msg_generic_version_set_major(VERSION_MAJOR);
msg_generic_version_set_minor(VERSION_MINOR);
msg_generic_version_set_patch(VERSION_PATCH);
msg_generic_version_set_hash(VERSION_HASH);
pkg_header_calc_crc32();
rfm12_send_bufx();
}
void send_dimmer_status(void)
{
UART_PUTS("Sending Dimmer Status:\r\n");
inc_packetcounter();
uint8_t bri = (uint8_t)current_brightness;
// Set packet content
pkg_header_init_dimmer_brightness_status();
pkg_header_set_senderid(device_id);
pkg_header_set_packetcounter(packetcounter);
msg_dimmer_brightness_set_brightness(bri);
pkg_header_calc_crc32();
UART_PUTF("CRC32 is %lx (added as first 4 bytes)\r\n", getBuf32(0));
UART_PUTF("Brightness: %u%%\r\n", bri);
rfm12_send_bufx();
}