circuitpython/ports/stm/common-hal/canio/CAN.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Jeff Epler for Adafruit Industries
*
* 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.
*/
#pragma once
#include "py/obj.h"
#include "shared-bindings/canio/__init__.h"
#include "shared-bindings/canio/CAN.h"
#include "common-hal/microcontroller/Pin.h"
#include "common-hal/canio/__init__.h"
#include "shared-module/canio/Message.h"
#include "stm32f4xx_hal.h"
#include "stm32f4xx_hal_can.h"
#define FILTER_BANK_COUNT (28)
typedef struct canio_can_obj {
mp_obj_base_t base;
CAN_HandleTypeDef handle;
CAN_TypeDef *filter_hw;
int baudrate;
const mcu_pin_obj_t *rx_pin;
const mcu_pin_obj_t *tx_pin;
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bool loopback : 1;
bool silent : 1;
bool auto_restart : 1;
bool fifo0_in_use : 1;
bool fifo1_in_use : 1;
uint8_t periph_index : 2;
uint8_t cancel_mailbox;
uint8_t start_filter_bank;
uint8_t end_filter_bank;
long filter_in_use; // bitmask for the 28 filter banks
} canio_can_obj_t;