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/*
* iobject.h
*
* Interface to provide object creation facilities.
*
* Copyright (C) 2008-2009 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE.
*/
#ifndef _IOBJECT_H_
#define _IOBJECT_H_
/* ObjType */
enum ipc_obj_type {
IPC_OBJTYPE_CREATESTATIC = 0x1,
IPC_OBJTYPE_CREATESTATIC_REGION = 0x2,
IPC_OBJTYPE_CREATEDYNAMIC = 0x4,
IPC_OBJTYPE_CREATEDYNAMIC_REGION = 0x8,
IPC_OBJTYPE_OPENDYNAMIC = 0x10,
IPC_OBJTYPE_LOCAL = 0x20
};
/* Object embedded in other module's object */
#define IOBJECT_SUPEROBJECT \
void *next; \
int status;
/* Generic macro to define a create/delete function for a module */
#define IOBJECT_CREATE0(MNAME) \
static struct MNAME##_object *MNAME##_first_object;\
\
\
void *MNAME##_create(const struct MNAME##_params *params)\
{ \
int *key;\
struct MNAME##_object *obj = (struct MNAME##_object *)\
kmalloc(sizeof(struct MNAME##_object),\
GFP_KERNEL);\
if (!obj)\
return NULL;\
memset(obj, 0, sizeof(struct MNAME##_object));\
obj->status = MNAME##_instance_init(obj, params);\
if (obj->status == 0) { \
key = gate_enter_system();\
if (MNAME##_first_object == NULL) { \
MNAME##_first_object = obj;\
obj->next = NULL;\
} else { \
obj->next = MNAME##_first_object;\
MNAME##_first_object = obj;\
} \
gate_leave_system(key);\
} else { \
kfree(obj);\
obj = NULL;\
} \
return obj;\
} \
\
\
int MNAME##_delete(void **handle)\
{ \
int *key;\
struct MNAME##_object *temp;\
struct MNAME##_object *obj;\
\
if (handle == NULL) \
return -EINVAL;\
if (*handle == NULL) \
return -EINVAL;\
obj = (struct MNAME##_object *)(*handle);\
key = gate_enter_system();\
if (obj == MNAME##_first_object) \
MNAME##_first_object = obj->next;\
else { \
temp = MNAME##_first_object;\
while (temp) { \
if (temp->next == obj) { \
temp->next = obj->next;\
break;\
} else { \
temp = temp->next;\
} \
} \
if (temp == NULL) { \
gate_leave_system(key);\
return -EINVAL;\
} \
} \
gate_leave_system(key);\
MNAME##_instance_finalize(obj, obj->status);\
kfree(obj);\
*handle = NULL;\
return 0;\
}
#define IOBJECT_CREATE1(MNAME, ARG) \
static struct MNAME##_object *MNAME##_first_object;\
\
\
void *MNAME##_create(ARG arg, const struct MNAME##_params *params)\
{ \
int *key;\
struct MNAME##_object *obj = (struct MNAME##_object *) \
kmalloc(sizeof(struct MNAME##_object),\
GFP_KERNEL);\
if (!obj) \
return NULL;\
memset(obj, 0, sizeof(struct MNAME##_object));\
obj->status = MNAME##_instance_init(obj, arg, params);\
if (obj->status == 0) { \
key = gate_enter_system();\
if (MNAME##_first_object == NULL) { \
MNAME##_first_object = obj;\
obj->next = NULL;\
} else { \
obj->next = MNAME##_first_object;\
MNAME##_first_object = obj;\
} \
gate_leave_system(key);\
} else { \
kfree(obj);\
obj = NULL;\
} \
return obj;\
} \
\
\
int MNAME##_delete(void **handle)\
{ \
int *key;\
struct MNAME##_object *temp;\
struct MNAME##_object *obj;\
\
if (handle == NULL) \
return -EINVAL;\
if (*handle == NULL) \
return -EINVAL;\
obj = (struct MNAME##_object *)(*handle);\
key = gate_enter_system();\
if (obj == MNAME##_first_object) \
MNAME##_first_object = obj->next;\
else { \
temp = MNAME##_first_object;\
while (temp) { \
if (temp->next == obj) { \
temp->next = obj->next;\
break;\
} else { \
temp = temp->next;\
} \
} \
if (temp == NULL) { \
gate_leave_system(key);\
return -EINVAL;\
} \
} \
gate_leave_system(key);\
MNAME##_instance_finalize(obj, obj->status);\
kfree(obj);\
*handle = NULL;\
return 0;\
}
#endif /* ifndef _IOBJECT_H_ */
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