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