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Protocol-level (12,8) hamming code implemented

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This commit is contained in:
Mark Qvist 2014-04-14 01:23:48 +02:00
parent ae3bfffd28
commit b2d2def862
3 changed files with 156 additions and 93 deletions
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4
Modem/protocol/mp1.h
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@ -24,14 +24,17 @@ typedef void (*mp1_callback_t)(struct MP1Packet *packet);
// Struct for a protocol context
typedef struct MP1 {
uint8_t buffer[MP1_MAX_FRAME_LENGTH]; // A buffer for incoming packets
uint8_t fecBuffer[3]; // FEC buffer
KFile *modem; // KFile access to the modem
size_t packetLength; // Counter for received packet length
size_t readLength; // This is the full read length, including parity bytes
uint8_t calculatedParity; // Calculated parity for incoming data block
mp1_callback_t callback; // The function to call when a packet has been received
uint8_t checksum_in; // Rolling checksum for incoming packets
uint8_t checksum_out; // Rolling checksum for outgoing packets
bool reading; // True when we have seen a HDLC flag
bool escape; // We need to know if we are in an escape sequence
bool fecEscape; // fec escape
} MP1;
// A struct encapsulating a network packet
@ -41,6 +44,7 @@ typedef struct MP1Packet {
} MP1Packet;
void mp1Init(MP1 *mp1, KFile *modem, mp1_callback_t callback);
void mp1Read(MP1 *mp1, int byte);
void mp1Poll(MP1 *mp1);
void mp1Send(MP1 *mp1, const void *_buffer, size_t length);