feat: more descriptive return codes, sanity checks

Author: eshaz

src/devices/astrostart_2000.c

@@ -82,7 +82,7 @@ static int astrostart_2000_decode(r_device *decoder, bitbuffer_t *bitbuffer)
     uint8_t *bytes = bitbuffer->bb[0];
 
     if (bytes[0] != (~bytes[1] & 0xff)) {
-        return DECODE_ABORT_EARLY;
+        return DECODE_FAIL_MIC;
     }
 
     button = bytes[0];
@@ -97,7 +97,7 @@ static int astrostart_2000_decode(r_device *decoder, bitbuffer_t *bitbuffer)
     }
 
     if (actual_checksum != expected_checksum) {
-        return DECODE_ABORT_EARLY;
+        return DECODE_FAIL_MIC;
     }
 
     // these are not bit flags

src/devices/audiovox_car_remote.c

@@ -66,8 +66,8 @@ static int audiovox_decode(r_device *decoder, bitbuffer_t *bitbuffer)
     code   = (bytes[2] << 8) | bytes[3];
     button = (bytes[4] >> 3) & 0xf;
 
-    if (id == 0 || code == 0 || button == 0) {
-        return DECODE_ABORT_EARLY;
+    if (id == 0 || code == 0 || button == 0 || id == 0xffff || code == 0xffff) {
+        return DECODE_FAIL_SANITY;
     }
 
     /* clang-format off */

src/devices/compustar_700r.c

@@ -34,7 +34,7 @@ IIIII bbbbb xxx
 
 - I: 20 bit remote ID
 - B: 5 bit button flags
-- x: 3 bit unknown (always set to 111)
+- x: 3 bit unknown (always set to 000)
 
 Format string:
 
@@ -57,14 +57,14 @@ static int compustar_700r_decode(r_device *decoder, bitbuffer_t *bitbuffer)
     uint8_t *bytes = bitbuffer->bb[0];
 
     if ((bytes[4] & 0x7) != 0x0) {
-        return DECODE_ABORT_EARLY;
+        return DECODE_FAIL_SANITY;
     }
 
     int id     = bytes[0] << 12 | bytes[1] << 4 | bytes[2] >> 4;
     int button = ~(bytes[2] << 1 | bytes[3] >> 7) & 0x1f;
 
-    if ((bytes[4] & 0x7) != 0x0 || button == 0 || id == 0) {
-        return DECODE_ABORT_EARLY;
+    if ((bytes[4] & 0x7) != 0x0 || button == 0 || id == 0 || id == 0xfffff) {
+        return DECODE_FAIL_SANITY;
     }
 
     // button flags