etherlab/etherlab_ext.c
author Edouard Tisserant
Wed, 02 Apr 2014 15:03:32 +0200
changeset 2152 e6946c298a42
parent 2086 8e4992e0f147
child 2165 02a2b5dee5e3
permissions -rw-r--r--
Cherry-pick and re-commit to legitimate ancestor of commit 'Ethercat Management Function Refactoring Source by RTES Lab.' from youcu <youcu1022@gmail.com>
2086
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     1
#include "iec_types_all.h"
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     2
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     3
#define FREE 0
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     4
#define ACQUIRED 1
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     5
#define ANSWERED 2
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     6
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     7
long SDOLock = FREE;
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     8
extern long AtomicCompareExchange(long* atomicvar,long compared, long exchange);
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
     9
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    10
int AcquireSDOLock() {
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    11
	return AtomicCompareExchange(&SDOLock, FREE, ACQUIRED) == FREE;
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    12
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    13
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    14
void SDOAnswered() {
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    15
	AtomicCompareExchange(&SDOLock, ACQUIRED, ANSWERED);
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    16
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    17
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    18
int HasAnswer() {
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    19
	return SDOLock == ANSWERED;
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    20
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    21
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    22
void ReleaseSDOLock() {
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    23
	AtomicCompareExchange(&SDOLock, ANSWERED, FREE);
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    24
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    25
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    26
int __init_etherlab_ext()
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    27
{
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    28
    SDOLock = FREE;
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    29
    return 0;
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    30
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    31
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    32
void __cleanup_etherlab_ext()
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    33
{
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    34
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    35
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    36
void __retrieve_etherlab_ext()
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    37
{
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    38
}
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    39
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    40
void __publish_etherlab_ext()
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    41
{
8e4992e0f147 Adding block library for SDO download and SDO upload
Laurent Bessard
parents:
diff changeset
    42
}