LXR linux/drivers/net/can/peak_canfd/peak_canfd

   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 */
  15struct 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
  40struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index,
  41                                        int echo_skb_max);
  42int peak_canfd_handle_msg(struct peak_canfd_priv *priv,
  43                          struct pucan_rx_msg *msg);
  44int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv,
  45                                struct pucan_rx_msg *rx_msg, int rx_count);
  46#endif
  47