1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * CAN driver for PEAK System micro-CAN based adapters
 4 *
 5 * Copyright (C) 2003-2011 PEAK System-Technik GmbH
 6 * Copyright (C) 2011-2013 Stephane Grosjean <s.grosjean@peak-system.com>
 7 */
 8#ifndef PEAK_CANFD_USER_H
 9#define PEAK_CANFD_USER_H
10
11#include <linux/can/dev/peak_canfd.h>
12
13#define PCANFD_ECHO_SKB_DEF		-1
14
15/* data structure private to each uCAN interface */
16struct peak_canfd_priv {
17	struct can_priv can;		/* socket-can private data */
18	struct net_device *ndev;	/* network device */
19	int index;			/* channel index */
20
21	struct can_berr_counter bec;	/* rx/tx err counters */
22
23	int echo_idx;			/* echo skb free slot index */
24	spinlock_t echo_lock;
25
26	int cmd_len;
27	void *cmd_buffer;
28	int cmd_maxlen;
29
30	int (*pre_cmd)(struct peak_canfd_priv *priv);
31	int (*write_cmd)(struct peak_canfd_priv *priv);
32	int (*post_cmd)(struct peak_canfd_priv *priv);
33
34	int (*enable_tx_path)(struct peak_canfd_priv *priv);
35	void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size,
36			      int *room_left);
37	int (*write_tx_msg)(struct peak_canfd_priv *priv,
38			    struct pucan_tx_msg *msg);
39};
40
41struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index,
42					int echo_skb_max);
43int peak_canfd_handle_msg(struct peak_canfd_priv *priv,
44			  struct pucan_rx_msg *msg);
45int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv,
46				struct pucan_rx_msg *rx_msg, int rx_count);
47#endif