try even harder to not drop any packets

[fhem-stuff] / culfw / culfw-asksin-fix.diff

diff --git a/culfw/culfw-asksin-fix.diff b/culfw/culfw-asksin-fix.diff
index b17fd05a3c6f7af7c486277d95f894535d01a8c4..07a587f31afb0887c98906c901a196c1c0908822 100644 (file)
--- a/culfw/culfw-asksin-fix.diff
+++ b/culfw/culfw-asksin-fix.diff
@@ -2,21 +2,29 @@ Index: clib/rf_asksin.c
 ===================================================================
 --- clib/rf_asksin.c   (revision 373)
 +++ clib/rf_asksin.c   (working copy)
-@@ -11,7 +11,7 @@
+@@ -11,13 +11,13 @@
  
  uint8_t asksin_on = 0;
  
 -const uint8_t PROGMEM ASKSIN_CFG[50] = {
+-     0x00, 0x07,
 +const uint8_t PROGMEM ASKSIN_CFG[] = {
-      0x00, 0x07,
++     0x00, 0x01,
       0x02, 0x2e,
       0x03, 0x0d,
-@@ -26,16 +26,17 @@
+      0x04, 0xE9,
+      0x05, 0xCA,
+-     0x07, 0x0C,
++     0x07, 0x04,
+      0x0B, 0x06,
+      0x0D, 0x21,
+      0x0E, 0x65,
+@@ -26,18 +26,21 @@
       0x11, 0x93,
       0x12, 0x03,
       0x15, 0x34,
 -     0x17, 0x30, // always go into IDLE
-+     0x17, 0x33, // always go into RX after TX, CCA, ELV uses 0x03
++     0x17, 0x3F, // always go into RX after TX, CCA, ELV uses 0x03
       0x18, 0x18,
       0x19, 0x16,
       0x1B, 0x43,
@@ -31,8 +39,12 @@ Index: clib/rf_asksin.c
 +     0x3e, 0xc3
  };
  
++static inline uint8_t read_cc1100_rxbytes();
++
  void
-@@ -56,18 +57,16 @@
+ rf_asksin_init(void)
+ {
+@@ -56,20 +59,30 @@
    my_delay_us(100);
  
    // load configuration
@@ -54,12 +66,57 @@ Index: clib/rf_asksin.c
 +  ccRX();
  }
  
++// Workaround for CC1101 Errata 3
++static inline uint8_t read_cc1100_rxbytes()
++{
++  uint8_t rxbytes, rxbytes2;
++  
++  rxbytes = cc1100_readReg(CC1100_RXBYTES);
++  while((rxbytes2 = cc1100_readReg(CC1100_RXBYTES)) != rxbytes)
++    rxbytes = rxbytes2;
++
++  return rxbytes;
++}
++
  void
-@@ -97,13 +96,13 @@
+ rf_asksin_task(void)
+ {
+@@ -77,15 +90,27 @@
+   uint8_t dec[MAX_ASKSIN_MSG];
+   uint8_t rssi;
+   uint8_t l;
++  uint8_t rxfifo_cnt;
+ 
+   if(!asksin_on)
+     return;
+ 
+-  // see if a CRC OK pkt has been arrived
+-  if (bit_is_set( CC1100_IN_PORT, CC1100_IN_PIN )) {
++  // see if there is data to be read
++  while (bit_is_set( CC1100_IN_PORT, CC1100_IN_PIN )) {
++    rxfifo_cnt = read_cc1100_rxbytes();
+ 
++    if (rxfifo_cnt & 0x80) // Overflow
++      break;
++
++    rxfifo_cnt &= 0x7f;
++
+     enc[0] = cc1100_readReg( CC1100_RXFIFO ) & 0x7f; // read len
+ 
++    while ((enc[0] + 2) < (rxfifo_cnt - 1)) { // Wait for more data
++      my_delay_ms(1);
++      rxfifo_cnt = (read_cc1100_rxbytes() & 0x7f) + 1;
++    }
++
+     if (enc[0]>=MAX_ASKSIN_MSG)
+          enc[0] = MAX_ASKSIN_MSG-1;
+     
+@@ -97,13 +122,12 @@
      }
      
      rssi = cc1100_sendbyte( 0 );
 -    
++    l = cc1100_sendbyte( 0 );
 +
      CC1100_DEASSERT;
  
@@ -67,14 +124,12 @@ Index: clib/rf_asksin.c
 -    ccStrobe( CC1100_SIDLE );
 -    ccStrobe( CC1100_SNOP  );
 -    ccStrobe( CC1100_SRX   );
-+    while(cc1100_readReg(CC1100_RXBYTES) & 0x7f)
-+          cc1100_readReg( CC1100_RXFIFO );
-+ 
-+    ccRX();
++    if (!(l & 0x80)) // CRC not ok
++      continue;
  
      dec[0] = enc[0];
      dec[1] = (~enc[1]) ^ 0x89;
-@@ -113,7 +112,6 @@
+@@ -113,7 +137,6 @@
      
      dec[l] = enc[l] ^ dec[2];
      
@@ -82,11 +137,22 @@ Index: clib/rf_asksin.c
      if (tx_report & REP_BINTIME) {
        
        DC('a');
-@@ -133,24 +131,17 @@
+@@ -131,26 +154,17 @@
+       
+       DNL();
      }
++  }
  
-     return;
+-    return;
 -       
++  switch(cc1100_readReg( CC1100_MARCSTATE )) {
++    case MARCSTATE_RXFIFO_OVERFLOW:
++      ccStrobe( CC1100_SFRX  );
++    case MARCSTATE_IDLE:
++      ccStrobe( CC1100_SIDLE );
++      ccStrobe( CC1100_SNOP  );
++      ccStrobe( CC1100_SRX   );
++      break;
    }
 -       
 -       
@@ -103,20 +169,11 @@ Index: clib/rf_asksin.c
 -    break;
 -       
 -  }
- 
-+  switch(cc1100_readReg( CC1100_MARCSTATE )) {
-+    case MARCSTATE_RXFIFO_OVERFLOW:
-+      ccStrobe( CC1100_SFRX  );
-+    case MARCSTATE_IDLE:
-+      ccStrobe( CC1100_SIDLE );
-+      ccStrobe( CC1100_SNOP  );
-+      ccStrobe( CC1100_SRX   );
-+      break;
-+  }
+-
  }
  
  void
-@@ -173,20 +164,7 @@
+@@ -173,20 +187,7 @@
      my_delay_ms(3);             // 3ms: Found by trial and error
    }
  
@@ -137,7 +194,7 @@ Index: clib/rf_asksin.c
    enc[0] = dec[0];
    enc[1] = (~dec[1]) ^ 0x89;
  
-@@ -195,6 +173,15 @@
+@@ -195,6 +196,15 @@
    
    enc[l] = dec[l] ^ dec[2];
  
@@ -153,7 +210,7 @@ Index: clib/rf_asksin.c
    // send
    CC1100_ASSERT;
    cc1100_sendbyte(CC1100_WRITE_BURST | CC1100_TXFIFO);
-@@ -205,12 +192,17 @@
+@@ -205,12 +215,17 @@
  
    CC1100_DEASSERT;