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8 Description: definitions for generating instances
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50 -------------------------------------------------------------------------
52 $RCSfile: EplInstDef.h,v $
56 $Revision: 1.4 $ $Date: 2008/04/17 21:36:32 $
63 -------------------------------------------------------------------------
67 r.d.: first implementation
69 ****************************************************************************/
71 #ifndef _EPLINSTDEF_H_
72 #define _EPLINSTDEF_H_
75 // =========================================================================
76 // types and macros for generating instances
77 // =========================================================================
87 //------------------------------------------------------------------------------------------
89 typedef void MEM* tEplPtrInstance;
90 typedef BYTE tEplInstanceHdl;
92 // define const for illegale values
93 #define CCM_ILLINSTANCE NULL
94 #define CCM_ILLINSTANCE_HDL 0xFF
96 //------------------------------------------------------------------------------------------
97 // if more than one instance then use this macros
98 #if (EPL_MAX_INSTANCES > 1)
100 //--------------------------------------------------------------------------------------
101 // macro definition for instance table definition
102 //--------------------------------------------------------------------------------------
104 // memory attributes for instance table
105 #define INST_NEAR // faster access to variables
106 #define INST_FAR // variables wich have to located in xdata
107 #define STATIC // prevent warnings for variables with same name
109 #define INSTANCE_TYPE_BEGIN typedef struct {
110 #define INSTANCE_TYPE_END } tEplInstanceInfo;
113 //--------------------------------------------------------------------------------------
114 // macro definition for API interface
115 //--------------------------------------------------------------------------------------
119 // macros for declaration within function header or prototype of API functions
120 #define CCM_DECL_INSTANCE_HDL tEplInstanceHdl InstanceHandle
121 #define CCM_DECL_INSTANCE_HDL_ tEplInstanceHdl InstanceHandle,
123 // macros for declaration of pointer to instance handle within function header or prototype of API functions
124 #define CCM_DECL_PTR_INSTANCE_HDL tEplInstanceHdl MEM* pInstanceHandle
125 #define CCM_DECL_PTR_INSTANCE_HDL_ tEplInstanceHdl MEM* pInstanceHandle,
127 // macros for declaration instance as lokacl variable within functions
128 #define CCM_DECL_INSTANCE_PTR_LOCAL tCcmInstanceInfo MEM* pInstance;
129 #define CCM_DECL_PTR_INSTANCE_HDL_LOCAL tEplInstanceHdl MEM* pInstanceHandle;
133 // macros for reference of instance handle for function parameters
134 #define CCM_INSTANCE_HDL InstanceHandle
135 #define CCM_INSTANCE_HDL_ InstanceHandle,
137 // macros for reference of instance parameter for function parameters
138 #define CCM_INSTANCE_PARAM(par) par
139 #define CCM_INSTANCE_PARAM_(par) par,
141 // macros for reference of instance parameter for writing or reading values
142 #define CCM_INST_ENTRY (*((tEplPtrInstance)pInstance))
146 // macros for process instance handle
147 #define CCM_CHECK_INSTANCE_HDL() if (InstanceHandle >= EPL_MAX_INSTANCES) \
148 {return (kEplIllegalInstance);}
151 // macros for process pointer to instance handle
152 #define CCM_CHECK_PTR_INSTANCE_HDL() if (pInstanceHandle == NULL) \
153 {return (kEplInvalidInstanceParam);}
155 // This macro returned the handle and pointer to next free instance.
156 #define CCM_GET_FREE_INSTANCE_AND_HDL() pInstance = CcmGetFreeInstanceAndHandle (pInstanceHandle); \
157 ASSERT (*pInstanceHandle != CCM_ILLINSTANCE_HDL);
159 #define CCM_CHECK_INSTANCE_PTR() if (pInstance == CCM_ILLINSTANCE) \
160 {return (kEplNoFreeInstance);}
162 #define CCM_GET_INSTANCE_PTR() pInstance = CcmGetInstancePtr (InstanceHandle);
163 #define CCM_GET_FREE_INSTANCE_PTR() pInstance = GetFreeInstance (); \
164 ASSERT (pInstance != CCM_ILLINSTANCE);
167 //--------------------------------------------------------------------------------------
168 // macro definition for stack interface
169 //--------------------------------------------------------------------------------------
171 // macros for declaration within the function header, prototype or local var list
172 // Declaration of pointers within function paramater list must defined as void MEM*
174 #define EPL_MCO_DECL_INSTANCE_PTR void MEM* pInstance
175 #define EPL_MCO_DECL_INSTANCE_PTR_ void MEM* pInstance,
176 #define EPL_MCO_DECL_INSTANCE_PTR_LOCAL tEplPtrInstance pInstance;
178 // macros for reference of pointer to instance
179 // These macros are used for parameter passing to called function.
180 #define EPL_MCO_INSTANCE_PTR pInstance
181 #define EPL_MCO_INSTANCE_PTR_ pInstance,
182 #define EPL_MCO_ADDR_INSTANCE_PTR_ &pInstance,
184 // macro for access of struct members of one instance
185 // An access to a member of instance table must be casted by the local
186 // defined type of instance table.
187 #define EPL_MCO_INST_ENTRY (*(tEplPtrInstance)pInstance)
188 #define EPL_MCO_GLB_VAR(var) (((tEplPtrInstance)pInstance)->var)
190 // macros for process pointer to instance
191 #define EPL_MCO_GET_INSTANCE_PTR() pInstance = (tEplPtrInstance) GetInstancePtr (InstanceHandle);
192 #define EPL_MCO_GET_FREE_INSTANCE_PTR() pInstance = (tEplPtrInstance) GetFreeInstance (); \
193 ASSERT (pInstance != CCM_ILLINSTANCE);
195 // This macro should be used to check the passed pointer to an public function
196 #define EPL_MCO_CHECK_INSTANCE_STATE() ASSERT (pInstance != NULL); \
197 ASSERT (((tEplPtrInstance)pInstance)->m_InstState == kStateUsed);
199 // macros for declaration of pointer to instance pointer
200 #define EPL_MCO_DECL_PTR_INSTANCE_PTR void MEM* MEM* pInstancePtr
201 #define EPL_MCO_DECL_PTR_INSTANCE_PTR_ void MEM* MEM* pInstancePtr,
203 // macros for reference of pointer to instance pointer
204 // These macros are used for parameter passing to called function.
205 #define EPL_MCO_PTR_INSTANCE_PTR pInstancePtr
206 #define EPL_MCO_PTR_INSTANCE_PTR_ pInstancePtr,
208 // macros for process pointer to instance pointer
209 #define EPL_MCO_CHECK_PTR_INSTANCE_PTR() ASSERT (pInstancePtr != NULL);
210 #define EPL_MCO_SET_PTR_INSTANCE_PTR() (*pInstancePtr = pInstance);
212 #define EPL_MCO_INSTANCE_PARAM(a) (a)
213 #define EPL_MCO_INSTANCE_PARAM_(a) (a),
214 #define EPL_MCO_INSTANCE_PARAM_IDX_() EPL_MCO_INSTANCE_PARAM_ (EPL_MCO_GLB_VAR (m_bInstIndex))
215 #define EPL_MCO_INSTANCE_PARAM_IDX() EPL_MCO_INSTANCE_PARAM (EPL_MCO_GLB_VAR (m_bInstIndex))
216 #define EPL_MCO_WRITE_INSTANCE_STATE(a) EPL_MCO_GLB_VAR (m_InstState) = a;
218 // this macro deletes all instance entries as unused
219 #define EPL_MCO_DELETE_INSTANCE_TABLE() \
221 tEplInstanceInfo MEM* pInstance = &aEplInstanceTable_g[0]; \
222 tFastByte InstNumber = 0; \
223 tFastByte i = EPL_MAX_INSTANCES; \
225 pInstance->m_InstState = (BYTE) kStateUnused; \
226 pInstance->m_bInstIndex = (BYTE) InstNumber; \
227 pInstance++; InstNumber++; i--; \
231 // definition of functions which has to be defined in each module of CANopen stack
232 #define EPL_MCO_DEFINE_INSTANCE_FCT() \
233 static tEplPtrInstance GetInstancePtr (tEplInstanceHdl InstHandle_p); \
234 static tEplPtrInstance GetFreeInstance (void);
235 #define EPL_MCO_DECL_INSTANCE_FCT() \
236 static tEplPtrInstance GetInstancePtr (tEplInstanceHdl InstHandle_p) { \
237 return &aEplInstanceTable_g[InstHandle_p]; } \
238 static tEplPtrInstance GetFreeInstance (void) { \
239 tEplInstanceInfo MEM* pInstance = &aEplInstanceTable_g[0]; \
240 tFastByte i = EPL_MAX_INSTANCES; \
241 do { if (pInstance->m_InstState != kStateUsed) { \
242 return (tEplPtrInstance) pInstance; } \
243 pInstance++; i--; } \
245 return CCM_ILLINSTANCE; }
247 // this macro defines the instance table. Each entry is reserved for an instance of CANopen.
248 #define EPL_MCO_DECL_INSTANCE_VAR() \
249 static tEplInstanceInfo MEM aEplInstanceTable_g [EPL_MAX_INSTANCES];
251 // this macro defines member variables in instance table which are needed in
252 // all modules of Epl stack
253 #define EPL_MCO_DECL_INSTANCE_MEMBER() \
254 STATIC BYTE m_InstState; \
255 STATIC BYTE m_bInstIndex;
257 #define EPL_MCO_INSTANCE_PARAM_IDX_() EPL_MCO_INSTANCE_PARAM_ (EPL_MCO_GLB_VAR (m_bInstIndex))
258 #define EPL_MCO_INSTANCE_PARAM_IDX() EPL_MCO_INSTANCE_PARAM (EPL_MCO_GLB_VAR (m_bInstIndex))
260 #else // only one instance is used
262 // Memory attributes for instance table.
263 #define INST_NEAR NEAR // faster access to variables
264 #define INST_FAR MEM // variables wich have to located in xdata
265 #define STATIC static // prevent warnings for variables with same name
267 #define INSTANCE_TYPE_BEGIN
268 #define INSTANCE_TYPE_END
270 // macros for declaration, initializing and member access for instance handle
271 // This class of macros are used by API function to inform CCM-modul which
272 // instance is to be used.
274 // macros for reference of instance handle
275 // These macros are used for parameter passing to CANopen API function.
276 #define CCM_INSTANCE_HDL
277 #define CCM_INSTANCE_HDL_
279 #define CCM_DECL_INSTANCE_PTR_LOCAL
281 // macros for declaration within the function header or prototype
282 #define CCM_DECL_INSTANCE_HDL void
283 #define CCM_DECL_INSTANCE_HDL_
285 // macros for process instance handle
286 #define CCM_CHECK_INSTANCE_HDL()
288 // macros for declaration of pointer to instance handle
289 #define CCM_DECL_PTR_INSTANCE_HDL void
290 #define CCM_DECL_PTR_INSTANCE_HDL_
292 // macros for process pointer to instance handle
293 #define CCM_CHECK_PTR_INSTANCE_HDL()
295 // This macro returned the handle and pointer to next free instance.
296 #define CCM_GET_FREE_INSTANCE_AND_HDL()
298 #define CCM_CHECK_INSTANCE_PTR()
300 #define CCM_GET_INSTANCE_PTR()
301 #define CCM_GET_FREE_INSTANCE_PTR()
303 #define CCM_INSTANCE_PARAM(par)
304 #define CCM_INSTANCE_PARAM_(par)
306 #define CCM_INST_ENTRY aCcmInstanceTable_g[0]
308 // macros for declaration, initializing and member access for instance pointer
309 // This class of macros are used by CANopen internal function to point to one instance.
311 // macros for declaration within the function header, prototype or local var list
312 #define EPL_MCO_DECL_INSTANCE_PTR void
313 #define EPL_MCO_DECL_INSTANCE_PTR_
314 #define EPL_MCO_DECL_INSTANCE_PTR_LOCAL
316 // macros for reference of pointer to instance
317 // These macros are used for parameter passing to called function.
318 #define EPL_MCO_INSTANCE_PTR
319 #define EPL_MCO_INSTANCE_PTR_
320 #define EPL_MCO_ADDR_INSTANCE_PTR_
322 // macros for process pointer to instance
323 #define EPL_MCO_GET_INSTANCE_PTR()
324 #define EPL_MCO_GET_FREE_INSTANCE_PTR()
326 // This macro should be used to check the passed pointer to an public function
327 #define EPL_MCO_CHECK_INSTANCE_STATE()
329 // macros for declaration of pointer to instance pointer
330 #define EPL_MCO_DECL_PTR_INSTANCE_PTR void
331 #define EPL_MCO_DECL_PTR_INSTANCE_PTR_
333 // macros for reference of pointer to instance pointer
334 // These macros are used for parameter passing to called function.
335 #define EPL_MCO_PTR_INSTANCE_PTR
336 #define EPL_MCO_PTR_INSTANCE_PTR_
338 // macros for process pointer to instance pointer
339 #define EPL_MCO_CHECK_PTR_INSTANCE_PTR()
340 #define EPL_MCO_SET_PTR_INSTANCE_PTR()
342 #define EPL_MCO_INSTANCE_PARAM(a)
343 #define EPL_MCO_INSTANCE_PARAM_(a)
344 #define EPL_MCO_INSTANCE_PARAM_IDX_()
345 #define EPL_MCO_INSTANCE_PARAM_IDX()
347 // macro for access of struct members of one instance
348 #define EPL_MCO_INST_ENTRY aEplInstanceTable_g[0]
349 #define EPL_MCO_GLB_VAR(var) (var)
350 #define EPL_MCO_WRITE_INSTANCE_STATE(a)
352 // this macro deletes all instance entries as unused
353 #define EPL_MCO_DELETE_INSTANCE_TABLE()
355 // definition of functions which has to be defined in each module of CANopen stack
356 #define EPL_MCO_DEFINE_INSTANCE_FCT()
357 #define EPL_MCO_DECL_INSTANCE_FCT()
359 // this macro defines the instance table. Each entry is reserved for an instance of CANopen.
360 #define EPL_MCO_DECL_INSTANCE_VAR()
362 // this macro defines member variables in instance table which are needed in
363 // all modules of CANopen stack
364 #define EPL_MCO_DECL_INSTANCE_MEMBER()
370 #if (CDRV_MAX_INSTANCES > 1)
372 #define CDRV_REENTRANT REENTRANT
376 #define CDRV_REENTRANT
382 #endif // _EPLINSTDEF_H_
384 // Die letzte Zeile muß unbedingt eine leere Zeile sein, weil manche Compiler
385 // damit ein Problem haben, wenn das nicht so ist (z.B. GNU oder Borland C++ Builder).