1 /* 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 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published 9 * by the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 */ 16 #ifndef PEAK_CANFD_USER_H 17 #define PEAK_CANFD_USER_H 18 19 #include <linux/can/dev/peak_canfd.h> 20 21 #define PCANFD_ECHO_SKB_DEF -1 22 23 /* data structure private to each uCAN interface */ 24 struct peak_canfd_priv { 25 struct can_priv can; /* socket-can private data */ 26 struct net_device *ndev; /* network device */ 27 int index; /* channel index */ 28 29 struct can_berr_counter bec; /* rx/tx err counters */ 30 31 int echo_idx; /* echo skb free slot index */ 32 spinlock_t echo_lock; 33 34 int cmd_len; 35 void *cmd_buffer; 36 int cmd_maxlen; 37 38 int (*pre_cmd)(struct peak_canfd_priv *priv); 39 int (*write_cmd)(struct peak_canfd_priv *priv); 40 int (*post_cmd)(struct peak_canfd_priv *priv); 41 42 int (*enable_tx_path)(struct peak_canfd_priv *priv); 43 void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size, 44 int *room_left); 45 int (*write_tx_msg)(struct peak_canfd_priv *priv, 46 struct pucan_tx_msg *msg); 47 }; 48 49 struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index, 50 int echo_skb_max); 51 int peak_canfd_handle_msg(struct peak_canfd_priv *priv, 52 struct pucan_rx_msg *msg); 53 int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv, 54 struct pucan_rx_msg *rx_msg, int rx_count); 55 #endif 56