can_esp.h

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/*
 * SPDX-FileCopyrightText: 2019 Gunar Schorcht
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#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;          
 
    uint32_t events;            
} can_t;

#define HAVE_CAN_T

typedef struct {
    uint32_t bitrate;           
    gpio_t tx_pin;              
    gpio_t rx_pin;              
#ifdef CAN_CLK_OUT
    gpio_t clk_out_pin;         
#endif
#ifdef CAN_BUS_ON_OFF
    gpio_t bus_on_off_pin;      
#endif
} can_conf_t;

#define HAVE_CAN_CONF_T
 
#ifdef __cplusplus
}
#endif