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updated protoview

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This commit is contained in:
jbohack
2023-01-23 14:21:10 -05:00
parent 35fe007814
commit 5c4f4cfbd2
26 changed files with 2224 additions and 274 deletions
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76
applications/plugins/protoview/protocols/tpms/renault.c
View File

@@ -25,7 +25,7 @@ static const char *test_vector =
static bool decode(uint8_t *bits, uint32_t numbytes, uint32_t numbits, ProtoViewMsgInfo *info) {
if (USE_TEST_VECTOR) { /* Test vector to check that decoding works. */
bitmap_set_pattern(bits,numbytes,test_vector);
bitmap_set_pattern(bits,numbytes,0,test_vector);
numbits = strlen(test_vector);
}
@@ -36,6 +36,7 @@ static bool decode(uint8_t *bits, uint32_t numbytes, uint32_t numbits, ProtoView
if (off == BITMAP_SEEK_NOT_FOUND) return false;
FURI_LOG_E(TAG, "Renault TPMS preamble+sync found");
info->start_off = off;
off += 20; /* Skip preamble. */
uint8_t raw[9];
@@ -47,20 +48,73 @@ static bool decode(uint8_t *bits, uint32_t numbytes, uint32_t numbits, ProtoView
if (decoded < 8*9) return false; /* Require the full 9 bytes. */
if (crc8(raw,8,0,7) != raw[8]) return false; /* Require sane CRC. */
float kpa = 0.75 *((uint32_t)((raw[0]&3)<<8) | raw[1]);
info->pulses_count = (off+8*9*2) - info->start_off;
uint8_t flags = raw[0]>>2;
float kpa = 0.75 * ((uint32_t)((raw[0]&3)<<8) | raw[1]);
int temp = raw[2]-30;
snprintf(info->name,sizeof(info->name),"%s","Renault TPMS");
snprintf(info->raw,sizeof(info->raw),"%02X%02X%02X%02X%02X%02X%02X%02X%02X",
raw[0],raw[1],raw[2],raw[3],raw[4],raw[5],
raw[6],raw[7],raw[8]);
snprintf(info->info1,sizeof(info->info1),"Tire ID %02X%02X%02X",
raw[3],raw[4],raw[5]);
snprintf(info->info2,sizeof(info->info2),"Pressure %.2f kpa", (double)kpa);
snprintf(info->info3,sizeof(info->info3),"Temperature %d C", temp);
fieldset_add_bytes(info->fieldset,"Tire ID",raw+3,3*2);
fieldset_add_float(info->fieldset,"Pressure kpa",kpa,2);
fieldset_add_int(info->fieldset,"Temperature C",temp,8);
fieldset_add_hex(info->fieldset,"Flags",flags,6);
fieldset_add_bytes(info->fieldset,"Unknown1",raw+6,2);
fieldset_add_bytes(info->fieldset,"Unknown2",raw+7,2);
return true;
}
/* Give fields and defaults for the signal creator. */
static void get_fields(ProtoViewFieldSet *fieldset) {
uint8_t default_id[3]= {0xAB, 0xCD, 0xEF};
fieldset_add_bytes(fieldset,"Tire ID",default_id,3*2);
fieldset_add_float(fieldset,"Pressure kpa",123,2);
fieldset_add_int(fieldset,"Temperature C",20,8);
// We don't know what flags are, but 1B is a common value.
fieldset_add_hex(fieldset,"Flags",0x1b,6);
fieldset_add_bytes(fieldset,"Unknown1",(uint8_t*)"\xff",2);
fieldset_add_bytes(fieldset,"Unknown2",(uint8_t*)"\xff",2);
}
/* Create a Renault TPMS signal, according to the fields provided. */
static void build_message(RawSamplesBuffer *samples, ProtoViewFieldSet *fieldset)
{
uint32_t te = 50; // Short pulse duration in microseconds.
// Preamble + sync
const char *psync = "01010101010101010101010101010110";
const char *p = psync;
while(*p) {
raw_samples_add_or_update(samples,*p == '1',te);
p++;
}
// Data, 9 bytes
uint8_t data[9] = {0};
unsigned int raw_pressure = fieldset->fields[1]->fvalue * 4 / 3;
data[0] = fieldset->fields[3]->uvalue << 2; // Flags
data[0] |= (raw_pressure >> 8) & 3; // Pressure kpa high 2 bits
data[1] = raw_pressure & 0xff; // Pressure kpa low 8 bits
data[2] = fieldset->fields[2]->value + 30; // Temperature C
memcpy(data+3,fieldset->fields[0]->bytes,6); // ID, 24 bits.
data[6] = fieldset->fields[4]->bytes[0]; // Unknown 1
data[7] = fieldset->fields[5]->bytes[0]; // Unknown 2
data[8] = crc8(data,8,0,7);
// Generate Manchester code for each bit
for (uint32_t j = 0; j < 9*8; j++) {
if (bitmap_get(data,sizeof(data),j)) {
raw_samples_add_or_update(samples,true,te);
raw_samples_add_or_update(samples,false,te);
} else {
raw_samples_add_or_update(samples,false,te);
raw_samples_add_or_update(samples,true,te);
}
}
}
ProtoViewDecoder RenaultTPMSDecoder = {
"Renault TPMS", decode
.name = "Renault TPMS",
.decode = decode,
.get_fields = get_fields,
.build_message = build_message
};