Diff: LoraTransport.h

Revision:

0:518c8dac75f3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LoraTransport.h	Thu Oct 13 09:40:21 2016 +0000
@@ -0,0 +1,86 @@
+#ifndef __LORA_TRANSPORT__
+#define __LORA_TRANSPORT__
+
+#include "sx1272-hal.h"
+
+#define RF_FREQUENCY                                868300000 // Hz
+#define TX_OUTPUT_POWER                             20        // 14 dBm
+#define RX_TIMEOUT_VALUE                            5000000   // in us
+#define TX_TIMEOUT_VALUE                            5000000   // in us
+#define LORA_BANDWIDTH                              0         // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]
+#define LORA_SPREADING_FACTOR                       9         // [SF7..SF12]
+#define LORA_CODINGRATE                             1         // [1: 4/5, 2: 4/6, 3: 4/7,  4: 4/8]
+#define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx
+#define LORA_SYMBOL_TIMEOUT                         5         // Symbols
+#define LORA_FIX_LENGTH_PAYLOAD_ON                  false
+#define LORA_FHSS_ENABLED                           false
+#define LORA_NB_SYMB_HOP                            4
+#define LORA_IQ_INVERSION_ON                        false
+#define LORA_CRC_ENABLED                            true
+
+#define MAX_PAYLOAD_SIZE 251
+
+namespace LoraTransport {
+
+    struct Packet {
+        uint16_t from_addr;
+        uint16_t to_addr;
+        uint8_t  packet_number;
+        uint8_t  payload[MAX_PAYLOAD_SIZE];
+        uint8_t  payload_size;
+    };
+
+    struct Ack {
+        uint16_t from_addr;
+        uint16_t to_addr;
+        uint8_t  packet_number;
+        uint8_t  success;
+    };
+
+    enum State {
+        IDLE,                   //0
+        // TX cycle
+        CAD_RUNNING,            //1
+        CAD_POSITIVE,           //2
+        CAD_NEGATIVE,           //3
+        TX_MSG,                 //4
+        TX_MSG_TIMEOUT,         //5
+        TX_MSG_DONE,            //6
+        RX_ACK,                 //7
+        RX_ACK_TIMEOUT,         //8
+        RX_ACK_ERROR,           //9
+        RX_ACK_DONE,            //10
+        TX_ERROR,               //11
+        TX_SUCCESS,             //12
+        // RX cycle
+        RX_MSG,                 //13
+        RX_MSG_TIMEOUT,         //14
+        RX_MSG_ERROR,           //15
+        RX_MSG_DONE,            //16
+        TX_ERROR_ACK,           //17
+        TX_ERROR_ACK_TIMEOUT,   //18
+        TX_ERROR_ACK_DONE,      //19
+        TX_SUCCESS_ACK,         //20
+        TX_SUCCESS_ACK_TIMEOUT, //21
+        TX_SUCCESS_ACK_DONE,    //22
+        RX_ERROR,               //23
+        RX_SUCCESS              //24
+
+    };
+
+    void init();
+    void send(uint16_t addr, uint8_t *ptr, uint8_t len, uint32_t timeout = 20000000 /*µs -> 20s*/);
+    void recv(uint32_t timeout = 20000000 /*µs -> 20s*/);
+    bool done();
+    bool success();
+
+    void setAddress(uint16_t addr);
+    State getState();
+    State getLastErrorState();
+    Packet& getPacket();
+    int16_t getRSSI();
+    int8_t getSNR();
+
+};
+
+#endif // __LORA_TRANSPORT__