diff options
| author | Keith Packard <keithp@keithp.com> | 2013-05-13 22:34:19 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-06-09 12:14:11 -0700 |
| commit | 72b6c699d355fcd41addb9919d846e63105b9db7 (patch) | |
| tree | e80c32df0eaa776db2b01eccc91bbba15b8d2499 /src/telelco-v0.2/ao_lco.c | |
| parent | 47b7e1d819e48aaebf6ffda49effbee041ce8750 (diff) | |
altos: Add debounce helper. Use in button and quadrature drivers for TeleLCO
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/telelco-v0.2/ao_lco.c')
| -rw-r--r-- | src/telelco-v0.2/ao_lco.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/src/telelco-v0.2/ao_lco.c b/src/telelco-v0.2/ao_lco.c index 418c0509..6e490247 100644 --- a/src/telelco-v0.2/ao_lco.c +++ b/src/telelco-v0.2/ao_lco.c @@ -114,11 +114,9 @@ ao_lco_input(void) switch (event.unit) { case AO_QUADRATURE_PAD: if (!ao_lco_armed) { - if (event.value == ao_lco_pad) - break; - dir = ((int8_t) event.value - (int8_t) ao_lco_pad) > 0 ? 1 : -1; - new_pad = event.value; - while (!ao_lco_pad_present(new_pad)) { + dir = (int8_t) event.value; + new_pad = ao_lco_pad; + do { new_pad += dir; if (new_pad > AO_PAD_MAX_CHANNELS) new_pad = 0; @@ -126,21 +124,18 @@ ao_lco_input(void) new_pad = AO_PAD_MAX_CHANNELS - 1; if (new_pad == ao_lco_pad) break; - } + } while (!ao_lco_pad_present(new_pad)); if (new_pad != ao_lco_pad) { ao_lco_pad = new_pad; - ao_quadrature_count[AO_QUADRATURE_PAD] = ao_lco_pad; ao_lco_set_pad(); } } break; case AO_QUADRATURE_BOX: if (!ao_lco_armed) { - if (event.value == ao_lco_box) - break; - dir = ((int8_t) event.value - (int8_t) ao_lco_box) > 0 ? 1 : -1; - new_box = event.value; - while (!ao_lco_box_present(new_box)) { + dir = (int8_t) event.value; + new_box = ao_lco_box; + do { new_box += dir; if (new_box > ao_lco_max_box) new_box = ao_lco_min_box; @@ -148,8 +143,7 @@ ao_lco_input(void) new_box = ao_lco_min_box; if (new_box == ao_lco_box) break; - } - ao_quadrature_count[AO_QUADRATURE_PAD] = new_box; + } while (!ao_lco_box_present(new_box)); if (ao_lco_box != new_box) { ao_lco_box = new_box; ao_lco_got_channels = 0; |