From 1193ef26a1f1431d4974a0235cd923786509bab1 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Tue, 24 Feb 2015 23:23:30 +0100
Subject: moved tuer-rfid to realraum github repo

---
 tuer-rfid/limits.c | 81 ------------------------------------------------------
 1 file changed, 81 deletions(-)
 delete mode 100644 tuer-rfid/limits.c

(limited to 'tuer-rfid/limits.c')

diff --git a/tuer-rfid/limits.c b/tuer-rfid/limits.c
deleted file mode 100644
index 28c30ca..0000000
--- a/tuer-rfid/limits.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- *  spreadspace avr utils
- *
- *
- *  Copyright (C) 2013-2014 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"
-#include <LUFA/Drivers/Peripheral/ADC.h>
-
-#define LIMITS_ADC_CHAN_NUM 8
-#define LIMITS_ADC_CHAN ADC_CHANNEL8
-
-#define LIMITS_RINGBUF_SIZE 5
-/* HINT: this is compared to a sliding sum not an average! */
-#define LIMITS_TH_CLOSE 800
-#define LIMITS_TH_OPEN 2700
-
-void limits_init(void)
-{
-  ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
-  ADC_SetupChannel(LIMITS_ADC_CHAN_NUM);
-  ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | LIMITS_ADC_CHAN);
-}
-
-static uint16_t sum = 0;
-
-void limits_task(void)
-{
-  static uint16_t r[LIMITS_RINGBUF_SIZE] = { 0 };
-  static uint8_t idx = 0;
-
-  if(ADC_IsReadingComplete()) {
-    r[idx] = ADC_GetResult();
-    idx = (idx + 1) % LIMITS_RINGBUF_SIZE;
-    cli();
-    sum = 0;
-    uint8_t i;
-    for(i=0; i<LIMITS_RINGBUF_SIZE; ++i) sum += r[i];
-    sei();
-  }
-}
-
-limits_t limits_get(void)
-{
-  if(sum < LIMITS_TH_CLOSE)
-    return close;
-
-  if(sum < LIMITS_TH_OPEN)
-   return moving;
-
-  return open;
-}
-
-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!!!
-}
-- 
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