18e8e69d6SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2*3cc9358fSMarc Kleine-Budde /* CAN driver for PEAK System micro-CAN based adapters 38ac8321eSStephane Grosjean * 48ac8321eSStephane Grosjean * Copyright (C) 2003-2011 PEAK System-Technik GmbH 58ac8321eSStephane Grosjean * Copyright (C) 2011-2013 Stephane Grosjean <s.grosjean@peak-system.com> 68ac8321eSStephane Grosjean */ 78ac8321eSStephane Grosjean #ifndef PEAK_CANFD_USER_H 88ac8321eSStephane Grosjean #define PEAK_CANFD_USER_H 98ac8321eSStephane Grosjean 108ac8321eSStephane Grosjean #include <linux/can/dev/peak_canfd.h> 118ac8321eSStephane Grosjean 128ac8321eSStephane Grosjean #define PCANFD_ECHO_SKB_DEF -1 138ac8321eSStephane Grosjean 148ac8321eSStephane Grosjean /* data structure private to each uCAN interface */ 158ac8321eSStephane Grosjean struct peak_canfd_priv { 168ac8321eSStephane Grosjean struct can_priv can; /* socket-can private data */ 178ac8321eSStephane Grosjean struct net_device *ndev; /* network device */ 188ac8321eSStephane Grosjean int index; /* channel index */ 198ac8321eSStephane Grosjean 208ac8321eSStephane Grosjean struct can_berr_counter bec; /* rx/tx err counters */ 218ac8321eSStephane Grosjean 228ac8321eSStephane Grosjean int echo_idx; /* echo skb free slot index */ 238ac8321eSStephane Grosjean spinlock_t echo_lock; 248ac8321eSStephane Grosjean 258ac8321eSStephane Grosjean int cmd_len; 268ac8321eSStephane Grosjean void *cmd_buffer; 278ac8321eSStephane Grosjean int cmd_maxlen; 288ac8321eSStephane Grosjean 298ac8321eSStephane Grosjean int (*pre_cmd)(struct peak_canfd_priv *priv); 308ac8321eSStephane Grosjean int (*write_cmd)(struct peak_canfd_priv *priv); 318ac8321eSStephane Grosjean int (*post_cmd)(struct peak_canfd_priv *priv); 328ac8321eSStephane Grosjean 338ac8321eSStephane Grosjean int (*enable_tx_path)(struct peak_canfd_priv *priv); 348ac8321eSStephane Grosjean void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size, 358ac8321eSStephane Grosjean int *room_left); 368ac8321eSStephane Grosjean int (*write_tx_msg)(struct peak_canfd_priv *priv, 378ac8321eSStephane Grosjean struct pucan_tx_msg *msg); 388ac8321eSStephane Grosjean }; 398ac8321eSStephane Grosjean 408ac8321eSStephane Grosjean struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index, 418ac8321eSStephane Grosjean int echo_skb_max); 428ac8321eSStephane Grosjean int peak_canfd_handle_msg(struct peak_canfd_priv *priv, 438ac8321eSStephane Grosjean struct pucan_rx_msg *msg); 448ac8321eSStephane Grosjean int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv, 458ac8321eSStephane Grosjean struct pucan_rx_msg *rx_msg, int rx_count); 468ac8321eSStephane Grosjean #endif 47