opto7.h

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/****************************************************************************
** Copyright (C) 2020 MikroElektronika d.o.o.
** Contact: https://www.mikroe.com/contact
**
** 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 OPTO7_H
#define OPTO7_H
 
#ifdef __cplusplus
extern "C"{
#endif
 
#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"
#include "drv_uart.h"
 
#define OPTO7_PIN_STATE_HIGH        0x01
#define OPTO7_PIN_STATE_LOW         0x00
 
#define OPTO7_TX_DRV_BUFFER_SIZE    100
#define OPTO7_RX_DRV_BUFFER_SIZE    300
 
 // opto7_cmd
 
#define OPTO7_MAP_MIKROBUS( cfg, mikrobus ) \
    cfg.tx_pin  = MIKROBUS( mikrobus, MIKROBUS_TX ); \
    cfg.rx_pin  = MIKROBUS( mikrobus, MIKROBUS_RX ); \
    cfg.gp1 = MIKROBUS( mikrobus, MIKROBUS_PWM ); \
    cfg.gp2 = MIKROBUS( mikrobus, MIKROBUS_INT );
 
 // opto7_map
 // opto7
 
typedef enum
{
    OPTO7_DRV_SEL_GPIO,      
    OPTO7_DRV_SEL_UART       
} opto7_drv_t;
 
typedef struct
{
    // Output pins
    digital_out_t gp1;                          
    // Input pins
    digital_in_t gp2;                           
    // Modules
    uart_t uart;                                
    // Buffers
    uint8_t uart_rx_buffer[ OPTO7_RX_DRV_BUFFER_SIZE ];  
    uint8_t uart_tx_buffer[ OPTO7_TX_DRV_BUFFER_SIZE ];  
    opto7_drv_t drv_sel;                
} opto7_t;
 
typedef struct
{
    // Communication gpio pins
    pin_name_t rx_pin;                          
    pin_name_t tx_pin;                          
    // Additional gpio pins
    pin_name_t gp1;                             
    pin_name_t gp2;                             
    // Static variable
    uint32_t         baud_rate;                 
    bool             uart_blocking;             
    uart_data_bits_t data_bit;                  
    uart_parity_t    parity_bit;                
    uart_stop_bits_t stop_bit;                  
    opto7_drv_t drv_sel;               
} opto7_cfg_t;
 
typedef enum
{
    OPTO7_OK = 0,
    OPTO7_ERROR = -1
 
} opto7_return_value_t;
 
void opto7_cfg_setup ( opto7_cfg_t *cfg );
 
void opto7_drv_interface_selection ( opto7_cfg_t *cfg, opto7_drv_t drv_sel );
 
err_t opto7_init ( opto7_t *ctx, opto7_cfg_t *cfg );
 
err_t opto7_default_cfg ( opto7_t *ctx );
 
err_t opto7_generic_write ( opto7_t *ctx, uint8_t *data_in, uint16_t len );
 
err_t opto7_generic_read ( opto7_t *ctx, uint8_t *data_out, uint16_t len );
 
void opto7_set_gp1_pin( opto7_t *ctx, uint8_t pin_state );
 
uint8_t opto7_get_gp2_pin( opto7_t *ctx );
 
#ifdef __cplusplus
}
#endif
#endif // OPTO7_H
 
 // opto7
 
// ------------------------------------------------------------------------ END