/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* CAN driver for PEAK System micro-CAN based adapters.
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*
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* Copyright (C) 2001-2021 PEAK System-Technik GmbH
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* Copyright (C) 2019-2021 Stephane Grosjean <s.grosjean@peak-system.com>
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*/
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#ifndef PEAK_CANFD_USER_H
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#define PEAK_CANFD_USER_H
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#include <linux/can/dev/peak_canfd.h>
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#define CAN_MAX_DLC 8
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#define get_can_dlc(i) (min_t(__u8, (i), CAN_MAX_DLC))
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struct peak_berr_counter {
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__u16 txerr;
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__u16 rxerr;
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};
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/* data structure private to each uCAN interface */
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struct peak_canfd_priv {
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struct rtcan_device *rdev; /* RTCAN device */
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int index; /* channel index */
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struct peak_berr_counter bec;
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int cmd_len;
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void *cmd_buffer;
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int cmd_maxlen;
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int (*pre_cmd)(struct peak_canfd_priv *priv);
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int (*write_cmd)(struct peak_canfd_priv *priv);
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int (*post_cmd)(struct peak_canfd_priv *priv);
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int (*enable_tx_path)(struct peak_canfd_priv *priv);
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void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size,
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int *room_left);
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int (*write_tx_msg)(struct peak_canfd_priv *priv,
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struct pucan_tx_msg *msg);
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};
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struct rtcan_device *alloc_peak_canfd_dev(int sizeof_priv, int index);
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void rtcan_peak_pciefd_remove_proc(struct rtcan_device *rdev);
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int rtcan_peak_pciefd_create_proc(struct rtcan_device *rdev);
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int peak_canfd_handle_msg(struct peak_canfd_priv *priv,
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struct pucan_rx_msg *msg);
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int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv,
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struct pucan_rx_msg *rx_msg, int rx_count);
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#endif
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