int main()
{
const size_t data_size = (char *)main_end - (char *)main;
CRC_BYTE buffer[data_size + sizeof (CRC_STATE)];
printf(DEB("data_size = 0x%x\n"), data_size);
memcpy(buffer, main, data_size);
add_crc(0, buffer, sizeof buffer, crc32ieee8023);
fprintbuf(stdout, sizeof buffer, buffer, DEB(""));
printf(DEB("do_crc(buffer) -> 0x%08x\n"),
do_crc(0, buffer, data_size, crc32ieee8023));
printf(DEB("do_crc(buffer + CRC) -> 0x%08x\n"),
do_crc(0, buffer, sizeof buffer, crc32ieee8023));
}
void send_command(t_serial_request *prq, t_shared_data *pshared)
{
char byte;
char message[MAX_MSG_SIZE];
int sz, ctn;
//
enum eserial_state
{
ser_nothing,
ser_waiting_response
};
eserial_state ser_state;
ser_state = ser_nothing;
switch (prq->type)
{
case enothing:
break;
case eping:
{
while (pshared->pserial->read_next_byte(&byte)); // Empty the buffer
snprintf(message, MAX_MSG_SIZE, "ping\n");
add_crc(message);
pshared->pserial->write_serial_port(message, 1 + strlen(message));
ser_state = ser_waiting_response;
}
break;
case einformation:
{
while (pshared->pserial->read_next_byte(&byte)); // Empty the buffer
snprintf(message, MAX_MSG_SIZE, "get_params\n");
add_crc(message);
pshared->pserial->write_serial_port(message, 1 + strlen(message));
ser_state = ser_waiting_response;
}
break;
case ereport:
{
while (pshared->pserial->read_next_byte(&byte)); // Empty the buffer
snprintf(message, MAX_MSG_SIZE, "get_report\n");
add_crc(message);
pshared->pserial->write_serial_port(message, 1 + strlen(message));
ser_state = ser_waiting_response;
}
break;
case eprogram:
{
snprintf(message, MAX_MSG_SIZE, "set_param %s\n", prq->command);
add_crc(message);
pshared->pserial->write_serial_port(message, 1 + strlen(message));
usleep(500000);
ser_state = ser_nothing;
}
break;
case eupdategui:
default:
break;
}
if (ser_state == ser_waiting_response)
{
// Get the bytes from the serial line. Wait a little if nothing is found.
sz = 0;
for (ctn = 0; !pshared->pserial->read_next_byte(&byte) && ctn < 10; ctn++)
usleep(10000);
while (sz < MAX_MSG_SIZE && byte != 0 && ctn < 10) // Is the end of the message
{
message[sz++] = byte;
for (ctn = 0; !pshared->pserial->read_next_byte(&byte) && ctn < 10; ctn++)
usleep(1000);
}
if (byte == 0 && sz > 0)
{
message[sz] = '\0';
if (!check_crc(message, sz))
{
printf("Wrong CRC: %x / %x.\n", calculate_CRC(message, sz - 1), message[sz - 1]);
return;
}
message[sz - 1] = '\0'; // Erase the CRC
printf("<- Received a serial message: \"%s\".\n", message);
LOCK;
// Process the shit, like if it was a sewer pipe.
switch (prq->type)
{
case enothing:
break;
case eping:
{
strncpy(pshared->bms_version, message, MAX_MSG_SIZE);
}
break;
case einformation:
{
strncpy(pshared->param_msg, message, MAX_MSG_SIZE);
pshared->pBMS->parse_BMS_params_string(&pshared->pBMS->m_params, pshared->param_msg);
}
break;
case ereport:
{
strncpy(pshared->report_msg, message, MAX_MSG_SIZE);
pshared->pBMS->parse_BMS_report_string(&pshared->pBMS->m_report, pshared->report_msg);
}
break;
case eprogram:
case eupdategui:
default:
break;
}
// This will trigger a screen refresh
add_command_in_locked_area(eupdategui, " ", pshared);
UNLOCK;
}
}
}
