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// Protocol constants for KM003C
/// Size of main packet header (4 bytes)
pub const MAIN_HEADER_SIZE: usize = 4;
/// Size of extended header in logical packets (4 bytes)
pub const EXTENDED_HEADER_SIZE: usize = 4;
/// Size of the PD measurement block used for status and event preambles.
pub const PD_STATUS_SIZE: usize = 12;
/// Size of PD event header (6 bytes)
pub const PD_EVENT_HEADER_SIZE: usize = 6;
/// Size of ADC data payload (44 bytes)
pub const ADC_DATA_SIZE: usize = 44;
/// Minimum size for a valid packet (header only)
pub const MIN_PACKET_SIZE: usize = MAIN_HEADER_SIZE;
/// PD event type: connection status
pub const PD_EVENT_TYPE_CONNECTION: u8 = 0x45;
/// PD connection event code: connect (0x21 = 33, appears as SOP33 if not recognized)
pub const PD_CONNECTION_CONNECT: u8 = 0x21;
/// PD connection event code: disconnect (0x22 = 34, appears as SOP34 if not recognized)
pub const PD_CONNECTION_DISCONNECT: u8 = 0x22;
/// Legacy PD connection event code observed in older KM003C captures
pub const PD_CONNECTION_CONNECT_LEGACY: u8 = 0x11;
/// Legacy PD disconnection event code observed in older KM003C captures
pub const PD_CONNECTION_DISCONNECT_LEGACY: u8 = 0x12;
/// Mask for extracting wire length from PD event size_flag
pub const PD_EVENT_SIZE_MASK: u8 = 0x3F;
/// Offset to subtract from masked size to get wire length
pub const PD_EVENT_SIZE_OFFSET: u8 = 5;