Fix compilation errors in GUOHETEC drivers

- Remove duplicate function declarations in pmr171_send
- Remove duplicate code blocks in pmr171_set_mode
- Remove duplicate pmr171_send calls in pmr171_set_ptt
- Add missing from_be function implementation
- Fix syntax errors that were causing CI failures

rigs/guohetec/guohetec.c

@@ -96,6 +96,26 @@ uint16_t CRC16Check(const unsigned char *buf, int len)
      return data;
  }
  
+ /**
+  * Convert from big-endian byte order
+ * @param data Data pointer
+ * @param byte_len Byte length
+ * @return Converted value
+  */
+ unsigned long long from_be(const unsigned char data[], unsigned int byte_len)
+ {
+     unsigned long long result = 0;
+     int i;
+ 
+     rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
+
+     for (i = 0; i < byte_len; i++)
+     {
+         result = (result << 8) | data[i];
+     }
+ 
+     return result;
+ }
 
 // Common response validation functions
 

rigs/guohetec/pmr171.c

@@ -321,7 +321,6 @@ static int pmr171_open(RIG *rig)
  /* ---------------------------------------------------------------------- */
  
  static int pmr171_send(RIG *rig, const unsigned char* buff, int len, unsigned char *reply, int rlen)
- static int pmr171_send(RIG *rig, const unsigned char* buff, int len, unsigned char *reply, int rlen)
 {
     hamlib_port_t *rp = RIGPORT(rig);
     int retry = 5;
@@ -644,16 +643,6 @@ static int pmr171_open(RIG *rig)
      unsigned char reply[10];
      unsigned char i = rmode2guohe(mode, pmr171_modes);
 
-     if (vfo == RIG_VFO_B)
-     {
-         cmd[6] = rmode2guohe(CACHE(rig)->modeMainA, pmr171_modes);
-         cmd[7] = i;
-     }
-     else
-     {
-         cmd[6] = i;
-         cmd[7] = rmode2guohe(CACHE(rig)->modeMainB, pmr171_modes);
-     }
      if (vfo == RIG_VFO_B)
      {
          cmd[6] = rmode2guohe(CACHE(rig)->modeMainA, pmr171_modes);
@@ -695,39 +684,6 @@ static int pmr171_open(RIG *rig)
      
      dump_hex(reply, reply[4] + 5);
      
-     // Update cache
-     CACHE(rig)->modeMainA = guohe2rmode(reply[6], pmr171_modes);
-     CACHE(rig)->modeMainB = guohe2rmode(reply[7], pmr171_modes);
-     int crc = CRC16Check(&cmd[4], 4);
-     cmd[8] = crc >> 8;
-     cmd[9] = crc & 0xff;
-     rig_flush(rp);
-     write_block(rp, cmd, 10);
-     
-     // Read header
-     int ret = read_block(rp, reply, 5);
-     if (ret < 0) {
-         rig_debug(RIG_DEBUG_ERR, "%s: read_block failed for header\n", __func__);
-     }
-     
-     // Validate data length
-     if (reply[4] == 0 || reply[4] > sizeof(reply) - 5) {
-         rig_debug(RIG_DEBUG_ERR, "%s: invalid reply length %d\n", __func__, reply[4]);
-     }
-     
-     // Read data section
-     ret = read_block(rp, &reply[5], reply[4]);
-     if (ret < 0) {
-         rig_debug(RIG_DEBUG_ERR, "%s: read_block failed for data\n", __func__);
-     }
-     
-     // Validate mode field index won't overflow
-     if (reply[4] < 3) { // Need at least 3 bytes to access reply[6] and reply[7]
-         rig_debug(RIG_DEBUG_ERR, "%s: Response too short for mode data\n", __func__);
-     }
-     
-     dump_hex(reply, reply[4] + 5);
-     
      // Update cache
      CACHE(rig)->modeMainA = guohe2rmode(reply[6], pmr171_modes);
      CACHE(rig)->modeMainB = guohe2rmode(reply[7], pmr171_modes);
@@ -751,7 +707,6 @@ static int pmr171_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt)
 
     unsigned char reply[9];
     pmr171_send(rig, cmd, sizeof(cmd), reply, sizeof(reply));
-    pmr171_send(rig, cmd, sizeof(cmd), reply, sizeof(reply));
 
     CACHE(rig)->ptt = ptt;