ft.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 FT_H
#define FT_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"
#include "drv_uart.h"
 
// -------------------------------------------------------------- PUBLIC MACROS 
#define FT_MAP_MIKROBUS( cfg, mikrobus ) \
  cfg.tx_pin = MIKROBUS( mikrobus, MIKROBUS_TX ); \
  cfg.rx_pin = MIKROBUS( mikrobus, MIKROBUS_RX ); \
  cfg.rst = MIKROBUS( mikrobus, MIKROBUS_RST ); \
  cfg.cs = MIKROBUS( mikrobus, MIKROBUS_CS )
#define FT_OK                           0
#define FT_ERROR                       -1
#define FT_DRV_HEADER_DATA              0x40
#define FT_DRV_HEADER_LEN               5
#define FT_DRV_DATA_CRC_LEN             2
#define FT_DRV_NEW_DATA_AVAILABLE       1
#define FT_DRV_CONFIRMED_PACKAGE        1
#define FT_DRV_CHECK_HEADER_DATA_1      0
#define FT_DRV_CHECK_HEADER_DATA_2      1
#define FT_DRV_CHECK_LEN_DATA_LSB       2
#define FT_DRV_CHECK_LEN_DATA_MSB       3
#define FT_NEW_DATA_AVAILABLE           1
#define FT_NEW_DATA_NOT_AVAILABLE       0
#define FT_DRV_BUFFER_SIZE              ( FT_MAX_DATA_BUFFER + FT_DRV_HEADER_LEN + FT_DRV_DATA_CRC_LEN )
#define FT_MAX_DATA_BUFFER              256
 // End group macro 
// --------------------------------------------------------------- PUBLIC TYPES
typedef struct
{
    // Output pins 
    digital_out_t rst;
    digital_out_t cs;
    
    // Modules 
    uart_t uart;
 
    uint8_t uart_rx_buffer[ FT_DRV_BUFFER_SIZE ];
    uint8_t uart_tx_buffer[ FT_DRV_BUFFER_SIZE ];
 
    // Response flags
    uint8_t drv_new_data;
    uint8_t drv_start_package;
    uint8_t drv_rsp_buff[ FT_MAX_DATA_BUFFER ];
    uint8_t drv_rsp_flag;
    uint16_t drv_buff_cnt;
    uint16_t drv_rsp_lenght;
 
} ft_t;
 
typedef struct
{
    // Communication gpio pins 
    pin_name_t rx_pin;
    pin_name_t tx_pin;
    
    // Additional gpio pins 
    pin_name_t rst;
    pin_name_t cs;
 
    // static variable 
    uint32_t          baud_rate;     // Clock speed.
    bool              uart_blocking;
    uart_data_bits_t  data_bit;      // Data bits.
    uart_parity_t     parity_bit;    // Parity bit.  
    uart_stop_bits_t  stop_bit;      // Stop bits.    
 
} ft_cfg_t;
 
// ----------------------------------------------- PUBLIC FUNCTION DECLARATIONS
 
#ifdef __cplusplus
extern "C"{
#endif
 
void ft_cfg_setup ( ft_cfg_t *cfg );
 
err_t ft_init ( ft_t *ctx, ft_cfg_t *cfg );
 
void ft_generic_write ( ft_t *ctx, uint8_t *data_buf, uint16_t len );
 
int32_t ft_generic_read ( ft_t *ctx, uint8_t *data_buf, uint16_t max_len );
 
void ft_set_rst_pin ( ft_t *ctx, uint8_t state );
 
void ft_send_package ( ft_t *ctx, uint8_t *data_buf, uint16_t len, uint8_t queue );
 
uint8_t ft_get_data_status ( ft_t *ctx );
 
uint16_t ft_get_data ( ft_t *ctx, uint8_t *data_buf );
 
void ft_isr_parser ( ft_t *ctx, uint8_t rsp_data );
 
#ifdef __cplusplus
}
#endif
#endif  // _FT_H_
 
 // End public_function group
 
// ------------------------------------------------------------------------- END