SR_PRIV int hung_chang_dso_2100_poll(int fd, int revents, void *cb_data)
{
struct sr_datafeed_packet packet = { .type = SR_DF_FRAME_BEGIN };
const struct sr_dev_inst *sdi;
struct dev_context *devc;
uint8_t state, buf[1000];
(void)fd;
(void)revents;
if (!(sdi = cb_data))
return TRUE;
if (!(devc = sdi->priv))
return TRUE;
if (devc->state_known)
hung_chang_dso_2100_write_mbox(sdi->conn, 0x99);
state = hung_chang_dso_2100_read_mbox(sdi->conn, 0.00025);
devc->state_known = (state != 0x00);
if (!devc->state_known || state == 0x21)
return TRUE;
if (state != 0x03) {
sr_err("Unexpected state 0x%X while checking for trigger", state);
return FALSE;
}
sr_session_send(sdi, &packet);
if (devc->channel) {
while (read_subframe(sdi, buf)) {
if (hung_chang_dso_2100_move_to(sdi, 1) != SR_OK)
break;
hung_chang_dso_2100_write_mbox(sdi->conn, 3);
g_usleep(1700);
if (hung_chang_dso_2100_read_mbox(sdi->conn, 0.02) != 0x03)
break;
}
}
packet.type = SR_DF_FRAME_END;
sr_session_send(sdi, &packet);
if (++devc->frame >= devc->frame_limit)
hung_chang_dso_2100_dev_acquisition_stop(sdi);
else
hung_chang_dso_2100_move_to(sdi, 0x21);
return TRUE;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
return hung_chang_dso_2100_dev_acquisition_stop(sdi, cb_data);
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
return hung_chang_dso_2100_dev_acquisition_stop(sdi);
}
