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Refactored the GCC C-Stack functions into their own file.

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This commit is contained in:
skarg
2009-05-12 20:41:42 +00:00
parent 9235ebeee2
commit 30c01de3a4
6 changed files with 149 additions and 66 deletions
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bacnet-stack/ports/atmega168/device.c
+3 -38
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@@ -34,6 +34,7 @@
#include "dlmstp.h"
#include "rs485.h"
#include "version.h"
#include "stack.h"
/* objects */
#include "device.h"
#include "av.h"
@@ -160,11 +161,6 @@ bool Device_Object_List_Identifier(
return status;
}
#if defined(__GNUC__)
extern uint8_t _end;
extern uint8_t __stack;
#endif
/* return the length of the apdu encoded or -1 for error */
int Device_Encode_Property_APDU(
uint8_t * apdu,
@@ -326,43 +322,12 @@ int Device_Encode_Property_APDU(
apdu_len =
encode_application_unsigned(&apdu[0], RS485_Get_Baud_Rate());
break;
#if defined(__GNUC__)
case 512:
count = 1 + (&__stack) - (&_end);
if (array_index == 0) {
/* Array element zero is the number of bytes of stack */
apdu_len = encode_application_unsigned(&apdu[0], count);
} else if (array_index == BACNET_ARRAY_ALL) {
/* if no index was specified, then try to encode the entire list */
/* into one packet. Note that more than likely you will have */
/* to return an error if the number of encoded objects exceeds */
/* your maximum APDU size. */
for (i = 1; i <= count; i++) {
len = encode_application_unsigned(&apdu[0], *(&_end + i));
apdu_len += len;
/* assume next one is the same size as this one */
/* can we all fit into the APDU? */
if ((apdu_len + len) >= MAX_APDU) {
*error_class = ERROR_CLASS_SERVICES;
*error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT;
apdu_len = -1;
break;
}
}
} else if (array_index <= count) {
apdu_len =
encode_application_unsigned(&apdu[0],
*(&_end + array_index));
} else {
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = -1;
}
apdu_len = encode_application_unsigned(&apdu[0], stack_size());
break;
case 513:
apdu_len = encode_application_unsigned(&apdu[0], __stack);
apdu_len = encode_application_unsigned(&apdu[0], stack_unused());
break;
#endif
default:
*error_class = ERROR_CLASS_PROPERTY;
*error_code = ERROR_CODE_UNKNOWN_PROPERTY;