tinySA/os/hal/lib/peripherals/displays/hal_displays.h

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/*
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
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.
*/
/**
* @file hal_displays.h
* @brief Generic display interface header.
*
* @addtogroup HAL_DISPLAYS
* @{
*/
#ifndef _HAL_DISPLAYS_H_
#define _HAL_DISPLAYS_H_
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief @p BaseDisplay specific methods.
* @note No methods so far, just a common ancestor interface.
*/
#define _base_display_methods_alone
/**
* @brief @p BaseDisplay specific methods with inherited ones.
*/
#define _base_display_methods \
_base_display_methods_alone
/**
* @brief @p BaseDisplay virtual methods table.
*/
struct BaseDisplayVMT {
_base_display_methods
};
/**
* @brief @p BaseDisplay specific data.
* @note It is empty because @p BaseDisplay is only an interface
* without implementation.
*/
#define _base_display_data
/**
* @brief Base display class.
*/
typedef struct {
/** @brief Virtual Methods Table.*/
const struct BaseDisplayVMT *vmt_basedisplay;
_base_display_data
} BaseDisplay;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @name Macro Functions (BaseDisplay)
* @{
*/
/**
* @brief Sensors get axes number.
*
* @param[in] ip pointer to a @p BaseDisplay or derived class.
* @return The number of axes of the BaseDisplay
*
* @api
*/
#define displayGetType(ip) (ip)->vmt_basedisplay->get_type(ip)
/** @} */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif /* _HAL_DISPLAYS_H_ */
/** @} */