acioemu: add support for 1.7.0 and encrypted polls

src/main/util/crc.c

@@ -8,7 +8,7 @@ uint8_t crc8(const void *ptr, size_t nbytes, uint8_t in)
     size_t i;
     size_t j;
 
-    // log_assert(ptr != NULL);
+    log_assert(ptr != NULL);
 
     bytes = ptr;
     crc = ~in;
@@ -35,7 +35,7 @@ uint16_t crc16(const void *ptr, size_t nbytes, uint16_t in)
     size_t i;
     size_t j;
 
-    // log_assert(ptr != NULL);
+    log_assert(ptr != NULL);
 
     bytes = ptr;
     crc = ~in;
@@ -55,6 +55,33 @@ uint16_t crc16(const void *ptr, size_t nbytes, uint16_t in)
     return ~crc;
 }
 
+uint16_t crc16_msb(const void *ptr, size_t nbytes, uint16_t in)
+{
+    const uint8_t *bytes;
+    uint16_t crc;
+    size_t i;
+    size_t j;
+
+    log_assert(ptr != NULL);
+
+    bytes = ptr;
+    crc = in;
+
+    for (i = 0; i < nbytes; i++) {
+        crc ^= bytes[i] << 8;
+
+        for (j = 0; j < 8; j++) {
+            if (crc & 0x8000) {
+                crc = (crc << 1) ^ 0x1021;
+            } else {
+                crc = crc << 1;
+            }
+        }
+    }
+
+    return crc;
+}
+
 uint32_t crc32(const void *ptr, size_t nbytes, uint32_t in)
 {
     const uint8_t *bytes;
@@ -62,7 +89,7 @@ uint32_t crc32(const void *ptr, size_t nbytes, uint32_t in)
     size_t i;
     size_t j;
 
-    // log_assert(ptr != NULL);
+    log_assert(ptr != NULL);
 
     bytes = ptr;
     crc = ~in;

src/main/util/crc.h

@@ -6,6 +6,7 @@
 
 uint8_t crc8(const void *ptr, size_t nbytes, uint8_t in);
 uint16_t crc16(const void *ptr, size_t nbytes, uint16_t in);
+uint16_t crc16_msb(const void *ptr, size_t nbytes, uint16_t in);
 uint32_t crc32(const void *ptr, size_t nbytes, uint32_t in);
 
 #endif