optoencoder.h

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/*
 * MikroSDK - MikroE Software Development Kit
 * Copyright© 2020 MikroElektronika d.o.o.
 * 
 * Permission is hereby granted, free of charge, to any person 
 * obtaining a copy of this software and associated documentation 
 * files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell copies of the Software, 
 * and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 
 * OR OTHER DEALINGS IN THE SOFTWARE. 
 */
 
// ----------------------------------------------------------------------------
 
#ifndef OPTOENCODER_H
#define OPTOENCODER_H
 
#ifdef PREINIT_SUPPORTED
#include "preinit.h"
#endif
 
#ifdef MikroCCoreVersion
    #if MikroCCoreVersion >= 1
        #include "delays.h"
    #endif
#endif
 
#include "drv_digital_out.h"
#include "drv_digital_in.h"
 
// -------------------------------------------------------------- PUBLIC MACROS 
#define OPTOENCODER_MAP_MIKROBUS( cfg, mikrobus ) \
  cfg.o1= MIKROBUS( mikrobus, MIKROBUS_PWM ); \
  cfg.o2= MIKROBUS( mikrobus, MIKROBUS_INT );
#define OPTOENCODER_RETVAL  uint8_t
 
#define OPTOENCODER_OK           0x00
#define OPTOENCODER_INIT_ERROR   0xFF
 // End group macro 
// --------------------------------------------------------------- PUBLIC TYPES
typedef struct
{
    // Input pins 
 
    digital_in_t o1;
    digital_in_t o2;
 
    uint8_t rotary_flag;
    uint8_t o1_flag;
    uint8_t o2_flag;
    int16_t dev_rotation;
 
} optoencoder_t;
 
typedef struct
{
    // Additional gpio pins 
 
    pin_name_t o1;
    pin_name_t o2;
 
} optoencoder_cfg_t;
 
 // End types group
// ----------------------------------------------- PUBLIC FUNCTION DECLARATIONS
 
#ifdef __cplusplus
extern "C"{
#endif
 
void optoencoder_cfg_setup ( optoencoder_cfg_t *cfg );
 
OPTOENCODER_RETVAL optoencoder_init ( optoencoder_t *ctx, optoencoder_cfg_t *cfg );
 
uint8_t optoencoder_get_o1 ( optoencoder_t *ctx );
 
uint8_t optoencoder_get_o2 ( optoencoder_t *ctx );
 
void optoencoder_init_dev ( optoencoder_t *ctx );
 
int16_t optoencoder_get_position ( optoencoder_t *ctx );
 
#ifdef __cplusplus
}
#endif
#endif  // _OPTOENCODER_H_
 
 // End public_function group
 
// ------------------------------------------------------------------------- END