w

2023-12-25 20:11:27 +03:00
parent ecdac7b3d3
commit 671c3ba048
14 changed files with 233 additions and 387 deletions
@@ -0,0 +1,115 @@
+#include "client.h"
+#include "hdlc.h"
+#include "stdio.h"
+#include "stdbool.h"
+
+#define CONNECT_FRAME_PERIOD 200
+#define SIZE_DATA_BUFFER 64
+#define COUNT_BUFFERS 4
+
+bool FLAG_FILL_BUFFER1 = false;
+bool FLAG_FILL_BUFFER2 = false;
+bool FLAG_FILL_BUFFER3 = false;
+bool FLAG_FILL_BUFFER4 = false;
+
+#define ERR_INVALID_DATA_SIZE -1
+#define ERR_ALL_BUFFERS_FILL -2
+
+struct Client hdlc_client;
+
+uint8_t buffer_data[COUNT_BUFFERS][SIZE_DATA_BUFFER];
+
+struct Client init_hdlc_client(enum HDLCState *state){
+    return hdlc_client;
+}
+
+void connect(struct Client* client){
+    client->state = CONNECTING;
+}
+
+int send_data(struct Client* client, uint8_t* data, size_t data_len){
+    if (data_len > 64){
+        return ERR_INVALID_DATA_SIZE;
+    }
+
+    if (!FLAG_FILL_BUFFER1){
+        for(int i = 0; i < SIZE_DATA_BUFFER; i++){
+            buffer_data[0][i] = data[i];
+        }
+
+        FLAG_FILL_BUFFER1 = true;
+    } else if (!FLAG_FILL_BUFFER2){
+        for(int i = 0; i < SIZE_DATA_BUFFER; i++){
+            buffer_data[1][i] = data[i];
+        }
+
+        FLAG_FILL_BUFFER2 = true;
+    } else if (!FLAG_FILL_BUFFER3){
+        for(int i = 0; i < SIZE_DATA_BUFFER; i++){
+            buffer_data[2][i] = data[i];
+        }
+
+        FLAG_FILL_BUFFER3 = true;
+    } if (!FLAG_FILL_BUFFER4){
+        for(int i = 0; i < SIZE_DATA_BUFFER; i++){
+            buffer_data[3][i] = data[i];
+        }
+
+        FLAG_FILL_BUFFER4 = true;
+    } else {
+        return ERR_ALL_BUFFERS_FILL;
+    }
+
+    client->state = READY_STATE;
+};
+
+int get_frame(struct Client* client, uint8_t buffer[], size_t lenBuffer){
+    hdlc_control_t control_send;
+
+    switch (client->state) {
+        case CONNECTING:
+            if (client->connecting_frame_timeout <= 0){
+                control_send.frame = HDLC_FRAME_ACK;
+                control_send.seq_no = 1;
+
+                int ret = hdlc_frame_data(&control_send, NULL, 0, buffer, &lenBuffer);
+                if (ret < 0){
+                    printf("err in get_frame ACK: %d\n", ret);
+                }
+
+                client->connecting_frame_timeout = CONNECT_FRAME_PERIOD;
+            }
+            break;
+        case READY_STATE:
+            control_send.frame = HDLC_FRAME_DATA;
+            control_send.seq_no = 1;
+            int ret = hdlc_frame_data(&control_send, buffer_data[0], SIZE_DATA_BUFFER, buffer, &lenBuffer);
+            if (ret < 0){
+                printf("err in get_frame DATA: %d\n", ret);
+            }
+            break;
+    }
+
+//   Yf
+
+    return 0;
+}
+
+int hdlc_get_raw_data(struct Client* client, uint8_t buffer[], size_t len_buffer){
+    hdlc_control_t recv_control;
+    uint8_t recive[len_buffer];
+
+    int ret = hdlc_get_data(&recv_control, buffer, len_buffer, recive,
+                            &len_buffer);
+    if (ret < 0){
+        printf("err in get_raw_data: %d\n", ret);
+    }
+    if (recv_control.frame == HDLC_FRAME_ACK){
+        client->state = IDLE_STATE;
+    }
+    return 0;
+}
+
+void hdlc_timeout_handler(struct Client* client, int delta_time){
+    client->connecting_frame_timeout -= delta_time;
+}
@@ -0,0 +1,30 @@
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+enum HDLCState {
+    UNINITIALIZED_STATE = 0,  // состояние до инцилизации
+    IDLE_STATE, // Состояние ожидания начала
+    READY_STATE, // Состояние принятия
+    CONNECTING, // состояние соединения
+    DISCONNECTING, // состояния отключения
+    RECIVED // состояние приема и отправки
+};
+
+struct Client{
+    enum HDLCState state;
+    int connecting_frame_timeout; //-1
+};
+
+//название функций
+struct Client init_hdlc_client(enum HDLCState *state);
+void connect(struct Client* client);
+int send_data(struct Client* client, uint8_t* data, size_t data_len);
+int get_frame(struct Client* client, uint8_t buffer[], size_t lenBuffer);
+//принимает буффер с уарта
+int hdlc_get_raw_data(struct Client* client, uint8_t buffer[], size_t len_buffer);
+void hdlc_timeout_handler(struct Client* client, int delta_time);
+
+#endif //CLIENT_H
@@ -0,0 +1,41 @@
+#include "fcs.h"
+
+/*
+ *    CRC-Type:     CRC16 CCIT
+ *    Polynomial:   0x1021 (x^16+x^12+x^5+1)
+ *    Lookup Table: Reflected
+ */
+static const unsigned short fcstab[256] = {
+        0x0000, 0x1189, 0x2312, 0x329b,
+        0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c,
+        0xdbe5, 0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c,
+        0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff,
+        0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
+        0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183,
+        0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, 0xbdcb, 0xac42,
+        0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116,
+        0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7,
+        0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1,
+        0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960,
+        0xbbfb, 0xaa72, 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630,
+        0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
+        0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf,
+        0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, 0x8408, 0x9581,
+        0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52,
+        0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612,
+        0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5,
+        0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7,
+        0xc03c, 0xd1b5, 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74,
+        0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
+        0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c,
+        0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd,
+        0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704, 0xf59f,
+        0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e,
+        0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a,
+        0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb,
+        0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9,
+        0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 };
+
+FCS_SIZE calc_fcs(FCS_SIZE fcs, unsigned char value) {
+    return (fcs >> 8) ^ fcstab[(fcs ^ value) & 0xff];
+}
@@ -0,0 +1,18 @@
+#ifndef FCS_H
+#define FCS_H
+
+#define FCS_INIT_VALUE 0xFFFF /* FCS initialization value. */
+#define FCS_GOOD_VALUE 0xF0B8 /* FCS value for valid frames. */
+#define FCS_INVERT_MASK 0xFFFF /* Invert the FCS value accordingly to the specification */
+#define FCS_SIZE unsigned short
+
+/**
+ * Calculates a new FCS based on the current value and value of data.
+ *
+ * @param fcs Current FCS value
+ * @param value The value to be added
+ * @returns Calculated FCS value
+ */
+FCS_SIZE calc_fcs(FCS_SIZE fcs, unsigned char value);
+
+#endif