int _main(void)
{
THROW_BEGIN()
/* init scl and get sockets:: */
THROW_ON_ERR(scl_init("arduino"));
void *rc_socket = scl_get_socket("rc_raw");
THROW_IF(rc_socket == NULL, -ENODEV);
void *power_socket = scl_get_socket("power");
THROW_IF(power_socket == NULL, -ENODEV);
/* allocate msgpack buffers: */
msgpack_sbuffer *msgpack_buf = msgpack_sbuffer_new();
THROW_IF(msgpack_buf == NULL, -ENOMEM);
msgpack_packer *pk = msgpack_packer_new(msgpack_buf, msgpack_sbuffer_write);
THROW_IF(pk == NULL, -ENOMEM);
/* fetch parameters: */
char *dev_path;
tsint_t dev_speed;
opcd_params_init("exynos_quad.arduino_serial.", 0);
opcd_param_t params[] =
{
{"path", &dev_path},
{"speed", &dev_speed},
OPCD_PARAMS_END
};
opcd_params_apply("", params);
/* opern serial port: */
serialport_t port;
THROW_ON_ERR(serial_open(&port, dev_path, tsint_get(&dev_speed), O_RDONLY));
uint16_t channels_raw[PPM_CHAN_MAX];
uint32_t voltage_raw, current_raw;
float channels[PPM_CHAN_MAX];
while (running)
{
int c = serial_read_char(&port);
if (c < 0)
msleep(1);
/* parse channels: */
int status = ppm_parse_frame(channels_raw, (uint8_t)(c));
if (status)
{
int sig_valid = 0;
int invalid_count = 0;
FOR_N(i, PPM_CHAN_MAX)
{
uint16_t chan_in = channels_raw[i];
if (chan_in >= PPM_VALUE_INVALID)
invalid_count++;
if (chan_in > PPM_VALUE_MAX)
chan_in = PPM_VALUE_MAX;
if (chan_in < PPM_VALUE_MIN)
chan_in = PPM_VALUE_MIN;
channels[i] = (float)(chan_in - PPM_VALUE_MIN) / (PPM_VALUE_MAX - PPM_VALUE_MIN) * 2.f - 1.f;
}
sig_valid = (invalid_count < (PPM_CHAN_MAX / 3));
/* send channels: */
msgpack_sbuffer_clear(msgpack_buf);
msgpack_pack_array(pk, 1 + PPM_CHAN_MAX);
PACKI(sig_valid); /* index 0: valid */
PACKFV(channels, PPM_CHAN_MAX); /* index 1, .. : channels */
scl_copy_send_dynamic(rc_socket, msgpack_buf->data, msgpack_buf->size);
}
/* parse adc voltage/current: */
status = power_parse_frame(&voltage_raw, ¤t_raw, (uint8_t)(c));
if (status)
{
float voltage = (float)(voltage_raw) / 1000.0;
float current = (float)(current_raw) / 1000.0;
/* send voltage / current: */
msgpack_sbuffer_clear(msgpack_buf);
msgpack_pack_array(pk, 2);
PACKF(voltage); /* index 0 */
PACKF(current); /* index 1 */
scl_copy_send_dynamic(power_socket, msgpack_buf->data, msgpack_buf->size);
}
}
int main_i2c(void)
{
THROW_BEGIN();
void *gps_socket = scl_get_socket("gps");
THROW_IF(gps_socket == NULL, -EIO);
int64_t hwm = 1;
zmq_setsockopt(gps_socket, ZMQ_SNDHWM, &hwm, sizeof(hwm));
void *sats_socket = scl_get_socket("sats");
THROW_IF(sats_socket == NULL, -EIO);
i2c_bus_t bus;
i2c_dev_t device;
uint8_t data_w[128];
uint8_t data_r[128];
if (i2c_bus_open(&bus, "/dev/i2c-1"))
{
syslog(LOG_CRIT, "could not open i2c device");
exit(EXIT_FAILURE);
}
i2c_dev_init(&device, &bus, I2C_GPS_ADDRESS);
msgpack_sbuffer *msgpack_buf = msgpack_sbuffer_new();
THROW_IF(msgpack_buf == NULL, -ENOMEM);
msgpack_packer *pk = msgpack_packer_new(msgpack_buf, msgpack_sbuffer_write);
THROW_IF(pk == NULL, -ENOMEM);
while (1)
{
msleep(200);
data_w[0] = I2C_GPS_STATUS;
i2c_xfer(&device, 1, data_w, 1, data_r);
msgpack_sbuffer_clear(msgpack_buf);
int status = data_r[0];
int fix = 0;
if (status & I2C_GPS_STATUS_2DFIX)
fix = 2;
if (status & I2C_GPS_STATUS_3DFIX)
fix = 3;
if (fix == 2)
msgpack_pack_array(pk, 7); /* 2d fix */
else if (fix == 3)
msgpack_pack_array(pk, 9); /* 3d fix */
else
msgpack_pack_array(pk, 1); /* no fix */
data_w[0] = I2C_GPS_TIME;
i2c_xfer(&device, 1, data_w, 4, data_r);
long time = (((long) data_r[3]) << 24)
| (((long) data_r[2]) << 16)
| (((long) data_r[1]) << 8)
| (data_r[0]);
time /= 1000;
char *time_str = ctime(&time);
size_t len = strlen(time_str);
msgpack_pack_raw(pk, len);
msgpack_pack_raw_body(pk, time_str, len); /* gps array index 0 */
if (fix == 2 || fix == 3)
{
data_w[0] = I2C_GPS_LOCATION;
i2c_xfer(&device, 1, data_w, 8, data_r);
PACKD(( (((long) data_r[3]) << 24)
| (((long) data_r[2]) << 16)
| (((long) data_r[1]) << 8)
| (data_r[0])) / 10000000.0); /* latitude, gps array index 1 */
PACKD(( (((long) data_r[7]) << 24)
| (((long) data_r[6]) << 16)
| (((long) data_r[5]) << 8)
| (data_r[4])) / 10000000.0); /* logitude, gps array index 2 */
PACKI((status & I2C_GPS_STATUS_NUMSATS) >> 4); /* gps array index 3 */
data_w[0] = I2C_GPS_GROUND_SPEED;
i2c_xfer(&device, 1, data_w, 2, data_r);
PACKF(((float)((data_r[1] << 8) | data_r[0])) / 100.0 * 1.94384); /* gps array index 4 */
data_w[0] = I2C_GPS_GROUND_SPEED;
i2c_xfer(&device, 1, data_w, 2, data_r);
PACKF((data_r[1] << 8) | data_r[0]); /* gps array index 5 */
PACKF(0 /* HDOP */); /* gps array index 6 */
}
if (fix == 3)
{
data_w[0] = I2C_GPS_ALTITUDE;
i2c_xfer(&device, 1, data_w, 2, data_r);
PACKF(((data_r[1]) << 8) | data_r[0]); /* gps array index 7 */
PACKF(0 /* VDOP */); /* gps array index 8 */
}
scl_copy_send_dynamic(gps_socket, msgpack_buf->data, msgpack_buf->size);
}