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