Argo WREM2 - changed proto msg size: 96->90 bits

Includes `matchBytes()` change to be able to work with non-byte-aligned bit lengths.

Signed-off-by: Mateusz Bronk <mbronk@users.noreply.github.com>

Author: mbronk

src/IRac.cpp

@@ -4563,7 +4563,8 @@ namespace IRAcUtils {
 #endif  // DECODE_AMCOR
 #if DECODE_ARGO
       case decode_type_t::ARGO: {
-        const uint16_t length = decode->bits / 8;
+        const uint16_t length = static_cast<uint16_t>(
+          ceil(static_cast<float>(decode->bits) / 8.0));
         if (IRArgoAC_WREM3::isValidWrem3Message(decode->state,
                                                 decode->bits, true)) {
           IRArgoAC_WREM3 ac(kGpioUnused);

src/IRrecv.cpp

@@ -1583,8 +1583,6 @@ uint16_t IRrecv::_matchGeneric(volatile uint16_t *data_ptr,
                               const uint8_t tolerance,
                               const int16_t excess,
                               const bool MSBfirst) {
-  // If we are expecting byte sizes, check it's a factor of 8 or fail.
-  if (!use_bits && nbits % 8 != 0)  return 0;
   // Calculate if we expect a trailing space in the data section.
   const bool kexpectspace = footermark || (onespace != zerospace);
   // Calculate how much remaining buffer is required.
@@ -1607,23 +1605,34 @@ uint16_t IRrecv::_matchGeneric(volatile uint16_t *data_ptr,
     return 0;
 
   // Data
-  if (use_bits) {  // Bits.
-    match_result_t result = IRrecv::matchData(data_ptr + offset, nbits,
+  if (!use_bits) {  // Bytes.
+    uint16_t data_used = IRrecv::matchBytes(data_ptr + offset, result_bytes_ptr,
+                                              remaining - offset, nbits / 8,
+                                              onemark, onespace,
+                                              zeromark, zerospace, tolerance,
+                                              excess, MSBfirst, kexpectspace);
+      if (!data_used) return 0;
+      offset += data_used;
+  }
+
+  // Only using bits,
+  // -or- using *bytes*, but number of bits was not a multiple of 8
+  if (use_bits || nbits % 8 != 0) {
+    uint16_t target_bit_cnt = (use_bits)? nbits : nbits % 8;
+    match_result_t result = IRrecv::matchData(data_ptr + offset, target_bit_cnt,
                                               onemark, onespace,
                                               zeromark, zerospace, tolerance,
                                               excess, MSBfirst, kexpectspace);
     if (!result.success) return 0;
-    *result_bits_ptr = result.data;
+    if (use_bits) {
+      *result_bits_ptr = result.data;
+    } else {
+      // Fill in last (non-full) byte
+      result_bytes_ptr[nbits / 8] = static_cast<uint8_t>(result.data);
+    }
     offset += result.used;
-  } else {  // bytes
-    uint16_t data_used = IRrecv::matchBytes(data_ptr + offset, result_bytes_ptr,
-                                            remaining - offset, nbits / 8,
-                                            onemark, onespace,
-                                            zeromark, zerospace, tolerance,
-                                            excess, MSBfirst, kexpectspace);
-    if (!data_used) return 0;
-    offset += data_used;
   }
+
   // Footer
   if (footermark && !matchMark(*(data_ptr + offset++), footermark, tolerance,
                                excess))

src/IRremoteESP8266.h

@@ -1165,7 +1165,8 @@ const uint16_t kAmcorBits = kAmcorStateLength * 8;
 const uint16_t kAmcorDefaultRepeat = kSingleRepeat;
 const uint16_t kArgoStateLength = 12;
 const uint16_t kArgoShortStateLength = 4;
-const uint16_t kArgoBits = kArgoStateLength * 8;
+const uint16_t kArgoBits = 90;  // The protocol bit length
+                                // is NOT full byte aligned
 const uint16_t kArgoShortBits = kArgoShortStateLength * 8;
 const uint16_t kArgo3AcControlStateLength = 6;  // Bytes
 const uint16_t kArgo3iFeelReportStateLength = 2;  // Bytes

test/IRrecv_test.cpp

@@ -1289,7 +1289,7 @@ TEST(TestMatchGeneric, UsingBytes) {
   EXPECT_GT(irsend.capture.rawlen - kStartOffset, entries_used);
   EXPECT_EQ(16, entries_used);
 
-  // Asking for non mod-8 size should fail.
+  // Asking for non mod-8 size should SUCCEED and fill-in next byte.
   entries_used = irrecv.matchGeneric(
       irsend.capture.rawbuf + offset, result_data,
       irsend.capture.rawlen - offset,
@@ -1302,7 +1302,11 @@ TEST(TestMatchGeneric, UsingBytes) {
       1,  // 1% Tolerance
       0,  // No excess margin
       true);  // MSB first.
-  ASSERT_EQ(0, entries_used);
+  ASSERT_NE(0, entries_used);
+  EXPECT_EQ(0b10101010, result_data[0]);
+  EXPECT_EQ(0b1, result_data[1]);
+  EXPECT_GT(irsend.capture.rawlen - kStartOffset, entries_used);
+  EXPECT_EQ(18, entries_used);
 
   // Expecting different timings should fail.
   entries_used = irrecv.matchGeneric(

test/ir_Argo_test.cpp

@@ -104,7 +104,7 @@ TEST(TestArgoACClass, MessageConstructon) {
   auto expected = std::vector<uint8_t>({
       0xAC, 0xF5, 0x00, 0x24, 0x02, 0x00, 0x00, 0x00, 0x00, 0xAC, 0xD6, 0x01});
   auto actual = ac.getRaw();
-  EXPECT_THAT(std::vector<uint8_t>(actual, actual + kArgoBits / 8),
+  EXPECT_THAT(std::vector<uint8_t>(actual, actual + static_cast<uint8_t>(ceil(static_cast<float>(kArgoBits) / 8.0))),
               ::testing::ElementsAreArray(expected));
   EXPECT_EQ(
       "Model: 1 (WREM2), Power: On, Mode: 0 (Cool), Fan: 0 (Auto), Temp: 20C, "
@@ -1461,6 +1461,50 @@ TEST(TestDecodeArgo, RealShortDecode) {
   EXPECT_EQ(28, r.sensorTemperature);
 }
 
+TEST(TestDecodeArgo, Issue2133_90bit_message) {
+  IRsendTest irsend(kGpioUnused);
+  IRrecv irrecv(kGpioUnused);
+  irsend.begin();
+
+  // Full Argo command message (90 bits)
+  const uint16_t command_90bit[193] = {
+   6422, 3190, 408, 872, 428, 848, 428, 2126, 402, 2150, 408, 872, 404, 2152, 402, 874, 402,
+   2152, 402, 2154, 406, 872, 428, 2126, 404, 876, 404, 2150, 430, 2124, 432, 2122, 432, 2124,
+   404, 874, 404, 874, 426, 852, 428, 850, 412, 864, 406, 872, 404, 874, 400, 2154, 428, 2128,
+   402, 876, 402, 874, 400, 2154, 404, 2150, 406, 2150, 400, 878, 400, 876, 402, 874, 416, 2136,
+   404, 2152, 402, 876, 402, 874, 402, 874, 428, 852, 402, 874, 404, 872, 400, 876, 402, 876,
+   404, 872, 430, 846, 402, 2152, 406, 2150, 406, 2150, 404, 874, 432, 846, 426, 850, 428, 850,
+   400, 878, 398, 876, 404, 874, 404, 874, 400, 2152, 432, 2124, 428, 2128, 432, 846, 426, 852,
+   400, 2154, 404, 874, 426, 2128, 428, 2128, 404, 872, 430, 848, 426, 2128, 404, 872, 414, 2140,
+   432, 848, 400, 876, 426, 850, 404, 872, 402, 876, 400, 876, 430, 848, 404, 872, 404, 874, 402,
+   2154, 402, 876, 428, 2126, 406, 872, 426, 2128, 426, 852, 404, 872, 430, 2124, 404, 874, 430,
+   846, 426, 2128, 400
+  }; // ARGO WREM2 (off command)
+
+  irsend.reset();
+  uint8_t expectedState[kArgoStateLength] = {
+      0xAC, 0xF5, 0x80, 0x39, 0x06, 0xE0, 0x00, 0xA7, 0x29, 0x80, 0x4A, 0x02 };
+  irsend.sendRaw(command_90bit, sizeof(command_90bit) / sizeof(command_90bit[0]), 38);
+  irsend.makeDecodeResult();
+  EXPECT_TRUE(irrecv.decode(&irsend.capture));
+  EXPECT_EQ(decode_type_t::ARGO, irsend.capture.decode_type);
+  EXPECT_EQ(kArgoBits, irsend.capture.bits);
+  EXPECT_STATE_EQ(expectedState, irsend.capture.state, irsend.capture.bits);
+  EXPECT_EQ(
+      "Model: 1 (WREM2), Power: Off, Mode: 0 (Cool), Fan: 3 (Max), Temp: 10C, Sensor Temp: 21C, Max: Off, IFeel: On, Night: Off",
+      IRAcUtils::resultAcToString(&irsend.capture));
+  stdAc::state_t r, p;
+  EXPECT_TRUE(IRAcUtils::decodeToState(&irsend.capture, &r, &p));
+  EXPECT_EQ(stdAc::ac_command_t::kControlCommand, r.command);
+  
+  EXPECT_EQ(21, r.sensorTemperature); // Note: This may be off by 1 per the report in #2133
+  EXPECT_TRUE(r.iFeel);
+  EXPECT_FALSE(r.power);
+  EXPECT_EQ(10, r.degrees);
+  EXPECT_EQ(stdAc::opmode_t::kCool, r.mode);
+}
+
+
 ///
 /// @brief Test Fixture for recorded tests
 ///