altos: Rename 'core' to 'kernel'

[fw/altos] / src / core / ao_debounce.c

diff --git a/src/core/ao_debounce.c b/src/core/ao_debounce.c
deleted file mode 100644 (file)
index b9d6772..0000000
--- a/src/core/ao_debounce.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * Copyright © 2013 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include <ao.h>
-#include <ao_debounce.h>
-#include <ao_fast_timer.h>
-
-static uint8_t                 ao_debounce_initialized;
-static uint8_t                 ao_debounce_running;
-static struct ao_debounce      *ao_debounce;
-
-static uint8_t values[64];
-static uint8_t n;
-
-#define d_step(n)      (((n) + 1) & 63)
-
-static void
-_ao_debounce_set(struct ao_debounce *debounce, uint8_t value)
-{
-       if (value != debounce->value) {
-               values[n] = value;
-               n = (n + 1) & 63;
-               debounce->value = value;
-               debounce->_set(debounce, value);
-       }
-       _ao_debounce_stop(debounce);
-}
-
-void
-ao_debounce_dump(void)
-{
-       uint8_t s;
-
-       for (s = 0; s < n; s++) {
-               printf ("%d: %d\n",
-                       s, values[s]);
-       }
-       n = 0;
-}
-
-/*
- * Get the current value, set the result when we've
- * reached the debounce count limit
- */
-static void
-_ao_debounce_check(struct ao_debounce *debounce)
-{
-       uint8_t next = debounce->_get(debounce);
-
-       if (next == debounce->current) {
-               if (debounce->count < debounce->hold) {
-                       if (++debounce->count == debounce->hold)
-                               _ao_debounce_set(debounce, debounce->current);
-               }
-       } else {
-               debounce->count = 0;
-               debounce->current = next;
-       }
-}
-
-static void
-_ao_debounce_isr(void)
-{
-       struct ao_debounce *debounce, *next;
-
-       for (debounce = ao_debounce; debounce; debounce = next) {
-               next = debounce->next;
-               _ao_debounce_check(debounce);
-       }
-}
-
-static void
-ao_debounce_on(void)
-{
-       ao_fast_timer_on(_ao_debounce_isr);
-}
-
-static void
-ao_debounce_off(void)
-{
-       ao_fast_timer_off(_ao_debounce_isr);
-}
-
-/*
- * Start monitoring one pin
- */
-void
-_ao_debounce_start(struct ao_debounce *debounce)
-{
-       uint32_t        m;
-
-       m = ao_arch_irqsave();
-       if (!debounce->running) {
-               debounce->running = 1;
-
-               /* Reset the counter */
-               debounce->count = 0;
-
-               /* Link into list */
-               debounce->next = ao_debounce;
-               ao_debounce = debounce;
-
-               /* Make sure the timer is running */
-               if (!ao_debounce_running++)
-                       ao_debounce_on();
-
-               /* And go check the current value */
-               _ao_debounce_check(debounce);
-       }
-       ao_arch_irqrestore(m);
-}
-
-/*
- * Stop monitoring one pin
- */
-void
-_ao_debounce_stop(struct ao_debounce *debounce)
-{
-       struct ao_debounce **prev;
-       uint32_t m;
-
-       m = ao_arch_irqsave();
-       if (debounce->running) {
-               debounce->running = 0;
-
-               /* Unlink */
-               for (prev = &ao_debounce; (*prev); prev = &((*prev)->next)) {
-                       if (*prev == debounce) {
-                               *prev = debounce->next;
-                               break;
-                       }
-               }
-               debounce->next = NULL;
-
-               /* Turn off the timer if possible */
-               if (!--ao_debounce_running)
-                       ao_debounce_off();
-       }
-       ao_arch_irqrestore(m);
-}
-
-void
-ao_debounce_init(void)
-{
-       if (ao_debounce_initialized)
-               return;
-       ao_debounce_initialized = 1;
-       ao_fast_timer_init();
-}