From 5d9d373a959271b498710817d08c2ea8e153aa6e Mon Sep 17 00:00:00 2001
From: Yves Fischer <yvesf-git@xapek.org>
Date: Thu, 13 Oct 2011 20:33:30 +0200
Subject: correct firmware??

---
 firmware/adc.c | 152 +++++++++++++++++++++++++++------------------------------
 1 file changed, 71 insertions(+), 81 deletions(-)

(limited to 'firmware/adc.c')

diff --git a/firmware/adc.c b/firmware/adc.c
index 915dbce..a9449b7 100644
--- a/firmware/adc.c
+++ b/firmware/adc.c
@@ -37,27 +37,19 @@
 #include "protocol.h"
 #include "adc.h"
 
-#include <stdio.h>
-#include "debug.h"
-
-
 void adc_parser(char *buf)
 {
-  //debugf("adc parser CMD %02x\n",buf[0]);
    switch(buf[0])
    {
       case CMD_ADC_INIT_PIN:
-         adc_init_usb(buf[2]);
-        break;
-      case CMD_ADC_DEINIT_PIN:
-         adc_deinit_usb(buf[2]);
-        break;
+         adc_init_usb((int)buf[2]);
+      break;
       case CMD_ADC_GET:
-         adc_get_usb(buf[2]);
-        break;
+         adc_get_usb((int)buf[2]);
+      break;
       case CMD_ADC_REF:
-         adc_ref_usb(buf[2]);
-        break;
+         adc_ref_usb((int)buf[2]);
+      break;
 
       default:
          answer[0]=buf[0];
@@ -67,49 +59,42 @@ void adc_parser(char *buf)
     }
 }
 
-int adc_init(uint8_t pin)
+int adc_init(int pin)
 {
-  if (pin >= 10 && pin <= 17)
-  {
-     octopus.ports[pin] = PIN_AD;
-     ADMUX |= (1<<REFS1) | (1<<REFS0); // interne Referenzspannung nutzen
-     return RSP_OK; 
-  }
-
-  return RSP_UNKOWN_PIN;
+   if (pin >= 33 && pin <= 40)
+   {
+      octopus.ports[pin] = PIN_AD;
+
+      switch(pin)
+      {
+         case 40:	  break;
+         case 39:	  break;
+         case 38:	  break;
+         case 37:	  break;
+         case 36:	  break;
+         case 35:	  break;
+         case 34:	  break;
+         case 33:	  break;
+         default:
+	         return RSP_IMPOSSIBLE_PIN_CONFIG;
+      } 
+      return RSP_OK; 
+   }
+   return RSP_UNKOWN_PIN;
 }
 
-void adc_init_usb(uint8_t pin)
+void adc_init_usb(int pin)
 {
    answer[0]=CMD_ADC_INIT_PIN;
-   answer[1]=(unsigned char)adc_init(pin);
-   answer[2]=0;
-
-   CommandAnswer(3);
-}
-
-int adc_deinit(uint8_t pin)
-{
-  if (octopus.ports[pin] == PIN_AD)
-  {
-     octopus.ports[pin] = PIN_NONE;
-     return RSP_OK; 
-  }
-
-  return RSP_UNKOWN_PIN;
-}
-
-void adc_deinit_usb(uint8_t pin)
-{
-   answer[0]=CMD_ADC_DEINIT_PIN;
-   answer[1]= (unsigned char)adc_deinit(pin);
+   answer[1]= (unsigned char)adc_init(pin);
    answer[2]=0;
 
    CommandAnswer(3);
 }
 
-void adc_get_usb(uint8_t pin)
+void adc_get_usb(int pin)
 {
+ 
    uint16_t result;
    //uint8_t result[2];
 
@@ -125,59 +110,64 @@ void adc_get_usb(uint8_t pin)
 }
 
 
-int adc_get(uint8_t pin, uint16_t *value)
+int adc_get(int pin, uint16_t *value)
 {
-  *value = 0;
-
-  if (octopus.ports[pin] == PIN_AD)
-  {
-    // 40  => 0
-    // 39  => 1
-    // 38  => 2
-    // pin  => 40-pin
-    *value =_adc_read_channel(17 - pin);
-    debugf("Wert %i\r\n",*value);
-    return RSP_OK;
-  }
-  else 
-    return RSP_WRONG_PIN_CONFIG;
+   *value = 0;
+
+   if (octopus.ports[pin] == PIN_AD)
+   {
+      switch (pin)
+      {
+         case 40: *value =_adc_read_channel(0); break;
+         case 39: *value =_adc_read_channel(1); break;
+         case 38: *value =_adc_read_channel(2); break;
+         case 37: *value =_adc_read_channel(3); break;
+         case 36: *value =_adc_read_channel(4); break;
+         case 35: *value =_adc_read_channel(5); break;
+         case 34: *value =_adc_read_channel(6); break;
+         case 33: *value =_adc_read_channel(7); break;
+         default:
+	      return RSP_IMPOSSIBLE_PIN_CONFIG;
+      } 
+      return RSP_OK;
+   } 
+   else 
+   {
+      return RSP_WRONG_PIN_CONFIG;
+   } 
 }
 
-void adc_ref_usb(uint8_t ref)
+void adc_ref_usb(int ref)
 {
    answer[0]=CMD_ADC_REF;
    answer[1]=adc_ref(ref);
-   answer[2]=0;
-   CommandAnswer(3);
+   CommandAnswer(2);
 }
 
-int adc_ref(uint8_t ref)
+int adc_ref(int ref)
 {
-  ADMUX = 0x00;
-
-  switch(ref)
-  {
-    case PARAM_ADC_AREF:  break;
-    case PARAM_ADC_AVCC:  ADMUX |= (1<<REFS0); break;
-    case PARAM_ADC_INTERNAL:  ADMUX |= (1<<REFS1) | (1<<REFS0); break;
-    default:
-      return RSP_ERROR;
-  }
-
-  return RSP_OK;
+   ADMUX = 0x00;
+
+   switch(ref){
+      case PARAM_ADC_AREF:  break;
+      case PARAM_ADC_AVCC:  ADMUX |= (1<<REFS0); break;
+      case PARAM_ADC_INTERNAL:  ADMUX |= (1<<REFS1) | (1<<REFS0); break;
+      default:
+         return RSP_ERROR;
+   }
+   return RSP_OK;
 }
 
-uint16_t _adc_read_channel(uint8_t mux)
+uint16_t _adc_read_channel(int mux)
 {
    int i;
    uint16_t result;
-
-   //ADMUX |= mux;                      // Kanal waehlen
  
    ADCSRA = (1<<ADEN) | (1<<ADPS1) | (1<<ADPS0);    // Frequenzvorteiler 
                               // setzen auf 8 (1) und ADC aktivieren (1)
  
-   ADMUX = (ADMUX & 0xF0) | mux; // select channel
+   //ADMUX |= (unsigned char)mux;                      // Kanal waehlen
+   ADMUX = (ADMUX & 0xF0) | (unsigned char) mux; // select channel
   
    //ADMUX |= (1<<REFS1) | (1<<REFS0); // interne Referenzspannung nutzen 
  
-- 
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