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-rw-r--r--usb-i2c-sl018/limits.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/usb-i2c-sl018/limits.c b/usb-i2c-sl018/limits.c
deleted file mode 100644
index 027a3b5..0000000
--- a/usb-i2c-sl018/limits.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * spreadspace avr utils
- *
- *
- * Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
- * Othmar Gsenger <otti@wirdorange.org>
- *
- * This file is part of spreadspace avr utils.
- *
- * spreadspace avr utils 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, either version 3 of the License, or
- * any later version.
- *
- * spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <avr/io.h>
-#include "limits.h"
-
-#define LIMITS_PIN PINC
-#define LIMITS_PORT PORTC
-#define LIMITS_DDR DDRC
-#define LIMITS_OPEN 6
-#define LIMITS_CLOSE 7
-
-#define LIMITS_LP_MAX 255
-
-void limits_init(void)
-{
- LIMITS_DDR = LIMITS_DDR & ~(1<<LIMITS_OPEN | 1<<LIMITS_CLOSE);
- LIMITS_PORT |= (1<<LIMITS_OPEN | 1<<LIMITS_CLOSE);
-}
-
-uint8_t limits_get_close(uint8_t pin)
-{
- static uint8_t last_state = 1<<LIMITS_CLOSE;
- static uint8_t lp_cnt = 0;
-
- uint8_t state = pin & (1<<LIMITS_CLOSE);
- if(state != last_state)
- lp_cnt++;
- else
- lp_cnt += lp_cnt ? -1 : 0;
-
- if(lp_cnt >= LIMITS_LP_MAX) {
- last_state = state;
- lp_cnt = 0;
- }
-
- return last_state;
-}
-
-uint8_t limits_get_open(uint8_t pin)
-{
- static uint8_t last_state = 1<<LIMITS_OPEN;
- static uint8_t lp_cnt = 0;
-
- uint8_t state = pin & (1<<LIMITS_OPEN);
- if(state != last_state)
- lp_cnt++;
- else
- lp_cnt += lp_cnt ? -1 : 0;
-
- if(lp_cnt >= LIMITS_LP_MAX) {
- last_state = state;
- lp_cnt = 0;
- }
-
- return last_state;
-}
-
-limits_t limits_get(void)
-{
- uint8_t tmp = LIMITS_PIN & (1<<LIMITS_OPEN | 1<<LIMITS_CLOSE);
- if(!limits_get_open(tmp)) {
- if(limits_get_close(tmp))
- return open;
- else
- return both;
- }
- else if(!limits_get_close(tmp))
- return close;
-
- return moving;
-}
-
-const char* limits_to_string(limits_t limits)
-{
- switch(limits) {
- case moving: return "...";
- case open: return "opened";
- case close: return "closed";
- case both: return "error";
- }
- return "invalid"; // gcc - shut the fuck up!!!
-}