mirror of https://github.com/rusefi/rusefi-1.git
142 lines
3.4 KiB
C++
142 lines
3.4 KiB
C++
#include "pch.h"
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#include "rusefi_lua.h"
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#include "lua_lib.h"
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#define BMW_CHECKSUM " function bmwChecksum(canID, data, offset, length) \
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checksum = canID \
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for i = offset, offset + length - 1,1 \
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do \
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checksum = checksum + data[i] \
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end \
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checksum = (checksum >> 8) + (checksum & 0xff) \
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return checksum \
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end "
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#define TWO_BYTES "function getTwoBytes(data, offset, factor) \
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return (data[offset + 2] * 256 + data[offset + 1]) * factor \
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end"
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#define GET_BIT_RANGE "function getBitRange(data, bitIndex, bitWidth) \
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byteIndex = bitIndex >> 3 \
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shift = bitIndex - byteIndex * 8 \
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value = data[1 + byteIndex] \
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if (shift + bitWidth > 8) then \
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value = value + data[2 + byteIndex] * 256 \
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end \
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mask = (1 << bitWidth) - 1 \
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return (value >> shift) & mask \
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end"
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// https://github.com/HeinrichG-V12/E65_ReverseEngineering/blob/main/docs/0x3B4.md
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TEST(LuaE65, Battery) {
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const char* realdata = TWO_BYTES R"(
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function testFunc()
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data = {0xdc, 0x03, 0x00, 0x53, 0xFE, 0xD3, 0x04, 0x00}
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return getTwoBytes(data, 0, 0.0147)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 14.5236);
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}
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// https://github.com/HeinrichG-V12/E65_ReverseEngineering/blob/main/docs/0x0A8.md
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TEST(LuaE65, extractTorqueFromA8) {
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const char* realdata = TWO_BYTES R"(
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function testFunc()
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data = { 0x42, 0x89, 0x10, 0x80, 0x10, 0x0F, 0x00, 0x60 }
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return 0.5 * (getTwoBytes(data, 1, 1) >> 4)
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end
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)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0x108 / 2);
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}
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// http://loopybunny.co.uk/CarPC/can/0AA.html
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TEST(LuaE65, Rpm) {
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const char* realdata = TWO_BYTES R"(
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function testFunc()
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data = {0x5F, 0x59, 0xFF, 0x00, 0x34, 0x0D, 0x80, 0x99}
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return getTwoBytes(data, 4, 0.25)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 845);
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}
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TEST(LuaE65, gear) {
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const char* realdata = TWO_BYTES R"(
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function testFunc()
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data = {0x58}
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return data[1] & 0xF
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 8);
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}
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TEST(LuaE65, repackAA) {
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const char* realdata = ARRAY_EQUALS TWO_BYTES R"(
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function testFunc()
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rpm = 673.75
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pedal = 50
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data = {0x58, 12, 14}
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expected = {0x58, 12, 14}
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return equals(data, expected)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0);
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}
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TEST(LuaE65, gearTorque) {
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const char* realdata = GET_BIT_RANGE R"(
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function testFunc()
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data = {0x9F, 0x01, 0x32, 0x20, 0x23, 0x30, 0xFF, 0x43}
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return getBitRange(data, 12, 12)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 800);
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}
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TEST(LuaE65, gearTorque2) {
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const char* realdata = GET_BIT_RANGE R"(
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function testFunc()
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data = {0x9F, 0x01, 0x32, 0x20, 0x23, 0x30, 0xFF, 0x43}
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return getBitRange(data, 0, 16)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0x019F);
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}
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TEST(LuaE65, gearTorque3) {
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const char* realdata = GET_BIT_RANGE R"(
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function testFunc()
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data = {0x9F, 0xDF, 0x32, 0x20, 0x23, 0x30, 0xFF, 0x43}
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return getBitRange(data, 0, 16)
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0xDF9F);
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}
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TEST(LuaE65, sumChecksum) {
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// checksum is first byte
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// id = A8, packet:
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// 12 AD 05 A0 05 0F 00 02
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const char* realdata = BMW_CHECKSUM R"(
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function testFunc()
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canID = 0xA8
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data = { 0xAD, 0x05, 0xA0, 0x05, 0x0F, 0x00, 0x02 }
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checksum = bmwChecksum(canID, data, 1, 7)
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return checksum;
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end)";
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EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0x12);
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}
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