root/drivers/net/can/peak_canfd/peak_canfd_user.h

INCLUDED FROM

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