can_esp.h

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/*
 * Copyright (C) 2019 Gunar Schorcht
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef CAN_ESP_H
#define CAN_ESP_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include "can/candev.h"
#include "periph/gpio.h"
 
#define ESP_CAN_MAX_RX_FILTERS  (16)
 
#define ESP_CAN_MAX_RX_FRAMES   (8)
 
typedef struct can {
    candev_t          candev;       
    canopt_state_t    state;        
    struct can_frame *tx_frame;                           
    struct can_frame  rx_frames[ESP_CAN_MAX_RX_FRAMES];   
    struct can_filter rx_filters[ESP_CAN_MAX_RX_FILTERS]; 
    uint32_t rx_frames_wptr;    
    uint32_t rx_frames_rptr;    
    uint32_t rx_frames_num;     
    uint32_t rx_filter_num;     
    bool   powered_up;          
    gpio_t tx_pin;              
    gpio_t rx_pin;              
#ifdef ESP_CAN_CLK_OUT
    gpio_t clk_out_pin;         
#endif
#ifdef ESP_CAN_BUS_ON_OFF
    gpio_t bus_on_off_pin;      
#endif
 
    uint32_t events;            
} can_t;
 
#define HAVE_CAN_T
 
typedef struct {
    uint32_t bitrate;           
    gpio_t tx_pin;              
    gpio_t rx_pin;              
#ifdef ESP_CAN_CLK_OUT
    gpio_t clk_out_pin;         
#endif
#ifdef ESP_CAN_BUS_ON_OFF
    gpio_t bus_on_off_pin;      
#endif
} can_conf_t;
 
#define HAVE_CAN_CONF_T
 
#ifdef __cplusplus
}
#endif
 
#endif /* CAN_ESP_H */