mirror of
https://github.com/candle-usb/candleLight_fw.git
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9a663007f5
Since all bit errors already trigger sending a error msg, remove the code triggering on counters going upwards, since they are send anyway. See [1] "This if statement doesn't normally do anything", get rid of it. [1] https://github.com/candle-usb/candleLight_fw/pull/61
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/*
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The MIT License (MIT)
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Copyright (c) 2016 Hubert Denkmair
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "hal_include.h"
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#include "gs_usb.h"
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typedef struct {
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CAN_TypeDef *instance;
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uint16_t brp;
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uint8_t phase_seg1;
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uint8_t phase_seg2;
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uint8_t sjw;
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} can_data_t;
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void can_init(can_data_t *hcan, CAN_TypeDef *instance);
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bool can_set_bittiming(can_data_t *hcan, uint16_t brp, uint8_t phase_seg1, uint8_t phase_seg2, uint8_t sjw);
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void can_enable(can_data_t *hcan, bool loop_back, bool listen_only, bool one_shot);
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void can_disable(can_data_t *hcan);
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bool can_is_enabled(can_data_t *hcan);
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bool can_receive(can_data_t *hcan, struct gs_host_frame *rx_frame);
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bool can_is_rx_pending(can_data_t *hcan);
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bool can_send(can_data_t *hcan, struct gs_host_frame *frame);
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/** return CAN->ESR register which contains tx/rx error counters and
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* LEC (last error code).
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*/
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uint32_t can_get_error_status(can_data_t *hcan);
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/** parse status value returned by can_get_error_status().
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* @param frame : will hold the generated error frame
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* @return 1 when status changes (if any) need a new error frame sent
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*/
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bool can_parse_error_status(uint32_t err, uint32_t last_err, can_data_t *hcan, struct gs_host_frame *frame);
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