static void filter_default_ok_cb(GenericDialog *gd, gpointer data)
{
filter_reset();
filter_add_defaults();
filter_rebuild();
filter_store_populate();
}
Filter *
filter_create (float sample_rate)
{
Filter *f = malloc(sizeof(Filter));
filter_reset(f, sample_rate);
if (!f) {
fprintf(stderr, "Could not allocate Filter.\n");
}
return f;
}
void tsproc_reset(struct tsproc *tsp, int full)
{
tsp->t1 = tmv_zero();
tsp->t2 = tmv_zero();
tsp->t3 = tmv_zero();
tsp->t4 = tmv_zero();
if (full) {
tsp->clock_rate_ratio = 1.0;
filter_reset(tsp->delay_filter);
}
}
static void rwand_update_state_running(struct rwand_dev *dev, struct rwand_status *new_status)
{
int new_filtered_period;
/* We want the works */
rwand_ensure_mode(dev, new_status,
RWAND_MODE_STALL_DETECT |
RWAND_MODE_ENABLE_SYNC |
RWAND_MODE_ENABLE_COIL |
RWAND_MODE_ENABLE_DISPLAY);
/* If our display just turned off, the firmware detected a stall. Go back
* to the 'starting' state and give up this.
*/
if ((dev->status.mode & RWAND_MODE_ENABLE_DISPLAY) &&
!(new_status->mode & RWAND_MODE_ENABLE_DISPLAY)) {
rwand_enter_state_starting(dev);
return;
}
/* If our mode has changed, both force a timing update and reset the period filter */
if (new_status->mode != dev->status.mode) {
dev->settings_dirty = 1;
filter_reset(&dev->period_filter);
}
new_filtered_period = filter_push(&dev->period_filter, new_status->period);
/* Only actually update the timings if our filtered period is noticeably
* different than the last set period. This is mainly here to reduce
* the bus bandwidth used by all the rwand_nb_request()s below when possible.
*/
if (abs(new_filtered_period - dev->filtered_period) > PERIOD_TOLERANCE) {
dev->settings_dirty = 1;
dev->filtered_period = new_filtered_period;
}
if (dev->settings_dirty) {
struct rwand_timings timings;
rwand_calc_timings(&dev->settings, new_filtered_period, &timings);
rwand_nb_request(dev, RWAND_CTRL_SET_COIL_PHASE, timings.coil_begin, timings.coil_end);
rwand_nb_request(dev, RWAND_CTRL_SET_COLUMN_WIDTH, timings.column_width, timings.gap_width);
rwand_nb_request(dev, RWAND_CTRL_SET_DISPLAY_PHASE, timings.fwd_phase, timings.rev_phase);
rwand_nb_request(dev, RWAND_CTRL_SET_NUM_COLUMNS, dev->settings.num_columns, 0);
dev->settings_dirty = 0;
}
}
