diff options
| author | Stephane Grosjean <s.grosjean@peak-system.com> | 2017-01-19 18:31:07 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2017-04-25 10:00:45 +0300 |
| commit | 8ac8321e4a7981312348413b9ec314fd93d71a0c (patch) | |
| tree | 2ad88a86c96ebe0b489b965c51717518215e31d1 /drivers/net/can/peak_canfd/peak_canfd_user.h | |
| parent | c3df7c5755ee1a53cd56a4efcf3426334ab9eea4 (diff) | |
| download | linux-8ac8321e4a7981312348413b9ec314fd93d71a0c.tar.xz | |
can: peak: add support for PEAK PCAN-PCIe FD CAN-FD boards
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>
Diffstat (limited to 'drivers/net/can/peak_canfd/peak_canfd_user.h')
| -rw-r--r-- | drivers/net/can/peak_canfd/peak_canfd_user.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/net/can/peak_canfd/peak_canfd_user.h b/drivers/net/can/peak_canfd/peak_canfd_user.h new file mode 100644 index 000000000000..bf6de47f69c2 --- /dev/null +++ b/drivers/net/can/peak_canfd/peak_canfd_user.h @@ -0,0 +1,55 @@ +/* + * CAN driver for PEAK System micro-CAN based adapters + * + * Copyright (C) 2003-2011 PEAK System-Technik GmbH + * Copyright (C) 2011-2013 Stephane Grosjean <s.grosjean@peak-system.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published + * by the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ +#ifndef PEAK_CANFD_USER_H +#define PEAK_CANFD_USER_H + +#include <linux/can/dev/peak_canfd.h> + +#define PCANFD_ECHO_SKB_DEF -1 + +/* data structure private to each uCAN interface */ +struct peak_canfd_priv { + struct can_priv can; /* socket-can private data */ + struct net_device *ndev; /* network device */ + int index; /* channel index */ + + struct can_berr_counter bec; /* rx/tx err counters */ + + int echo_idx; /* echo skb free slot index */ + spinlock_t echo_lock; + + int cmd_len; + void *cmd_buffer; + int cmd_maxlen; + + int (*pre_cmd)(struct peak_canfd_priv *priv); + int (*write_cmd)(struct peak_canfd_priv *priv); + int (*post_cmd)(struct peak_canfd_priv *priv); + + int (*enable_tx_path)(struct peak_canfd_priv *priv); + void *(*alloc_tx_msg)(struct peak_canfd_priv *priv, u16 msg_size, + int *room_left); + int (*write_tx_msg)(struct peak_canfd_priv *priv, + struct pucan_tx_msg *msg); +}; + +struct net_device *alloc_peak_canfd_dev(int sizeof_priv, int index, + int echo_skb_max); +int peak_canfd_handle_msg(struct peak_canfd_priv *priv, + struct pucan_rx_msg *msg); +int peak_canfd_handle_msgs_list(struct peak_canfd_priv *priv, + struct pucan_rx_msg *rx_msg, int rx_count); +#endif |