8ac8321e4a
This patch adds the support of the PCAN-PCI Express FD boards made by PEAK-System, for computers using the PCI Express slot. The PCAN-PCI Express FD has one or two CAN FD channels, depending on the model. A galvanic isolation of the CAN ports protects the electronics of the card and the respective computer against disturbances of up to 500 Volts. The PCAN-PCI Express FD can be operated with ambient temperatures in a range of -40 to +85 °C. Such boards run an extented version of the CAN-FD IP running into USB CAN-FD interfaces from PEAK-System, so this patch adds several new commands and their corresponding data types to the PEAK CAN-FD common definitions header file too. Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*
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* CAN driver for PEAK System micro-CAN based adapters
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*
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* Copyright (C) 2003-2011 PEAK System-Technik GmbH
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* Copyright (C) 2011-2013 Stephane Grosjean <s.grosjean@peak-system.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published
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* by the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef PEAK_CANFD_USER_H
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#define PEAK_CANFD_USER_H
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#include <linux/can/dev/peak_canfd.h>
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#define PCANFD_ECHO_SKB_DEF -1
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/* data structure private to each uCAN interface */
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struct peak_canfd_priv {
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struct can_priv can; /* socket-can private data */
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struct net_device *ndev; /* network device */
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int index; /* channel index */
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struct can_berr_counter bec; /* rx/tx err counters */
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int echo_idx; /* echo skb free slot index */
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spinlock_t echo_lock;
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int cmd_len;
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void *cmd_buffer;
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int cmd_maxlen;
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int (*pre_cmd)(struct peak_canfd_priv *priv);
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int (*write_cmd)(struct peak_canfd_priv *priv);
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int (*post_cmd)(struct peak_canfd_priv *priv);
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int (*enable_tx_path)(struct peak_canfd_priv *priv);
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void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size,
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int *room_left);
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int (*write_tx_msg)(struct peak_canfd_priv *priv,
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struct pucan_tx_msg *msg);
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};
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struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index,
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int echo_skb_max);
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int peak_canfd_handle_msg(struct peak_canfd_priv *priv,
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struct pucan_rx_msg *msg);
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int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv,
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struct pucan_rx_msg *rx_msg, int rx_count);
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#endif
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