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/*
* libdevice-node
*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __HW_COMMON_H__
#define __HW_COMMON_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#define MAKE_TAG_CONSTANT(A,B,C,D) (((A) << 24) | ((B) << 16) | ((C) << 8) | (D))
#define HARDWARE_INFO_TAG MAKE_TAG_CONSTANT('T','H','I','T')
struct hw_common;
struct hw_info {
/* magic must be initialized to HARDWARE_INFO_TAG */
uint32_t magic;
/* HAL version */
uint16_t hal_version;
/* device version */
uint16_t device_version;
/* device id */
const char *id;
/* device name */
const char *name;
/* author name */
const char *author;
/* module's dso */
void *dso;
/* reserved for future use */
uint32_t reserved[8];
/* open device */
int (*open)(struct hw_info *info,
const char *id, struct hw_common **common);
/* close device */
int (*close)(struct hw_common *common);
};
struct hw_common {
/* indicate to this device information structure */
struct hw_info *info;
};
#define MAKE_VERSION(maj,min) \
((((maj) & 0xff) << 8) | ((min) & 0xff))
/**
* Version of the struct hw_info
*/
#define HARDWARE_INFO_VERSION MAKE_VERSION(1,0)
/**
* Name of the hardware info symbolic (Tizen Hardware Info)
*/
#define HARDWARE_INFO_SYM TizenHwInfo
int hw_get_info(const char *id, const struct hw_info **info);
/**
* Structure define of hardware info module
* All hardware module should be use below define
* to make a specific structure for Tizen HAL.
* hw_get_info function will load a hw_info structure
* by using TizenHwInfo name at runtime.
* TizenHwInfo means Tizen Hardware Info.
*/
#define HARDWARE_MODULE_STRUCTURE \
__attribute__ ((visibility("default"))) \
struct hw_info HARDWARE_INFO_SYM
#ifdef __cplusplus
}
#endif
#endif
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