| /* |
| * CAN driver for PEAK System USB adapters |
| * Derived from the PCAN project file driver/src/pcan_usb_core.c |
| * |
| * Copyright (C) 2003-2010 PEAK System-Technik GmbH |
| * Copyright (C) 2010-2012 Stephane Grosjean <s.grosjean@peak-system.com> |
| * |
| * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de> |
| * |
| * 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 PCAN_USB_CORE_H |
| #define PCAN_USB_CORE_H |
| |
| /* PEAK-System vendor id. */ |
| #define PCAN_USB_VENDOR_ID 0x0c72 |
| |
| /* supported device ids. */ |
| #define PCAN_USB_PRODUCT_ID 0x000c |
| #define PCAN_USBPRO_PRODUCT_ID 0x000d |
| #define PCAN_USBPROFD_PRODUCT_ID 0x0011 |
| #define PCAN_USBFD_PRODUCT_ID 0x0012 |
| #define PCAN_USBX6_PRODUCT_ID 0x0014 |
| |
| #define PCAN_USB_DRIVER_NAME "peak_usb" |
| |
| /* number of urbs that are submitted for rx/tx per channel */ |
| #define PCAN_USB_MAX_RX_URBS 4 |
| #define PCAN_USB_MAX_TX_URBS 10 |
| |
| /* usb adapters maximum channels per usb interface */ |
| #define PCAN_USB_MAX_CHANNEL 2 |
| |
| /* maximum length of the usb commands sent to/received from the devices */ |
| #define PCAN_USB_MAX_CMD_LEN 32 |
| |
| struct peak_usb_device; |
| |
| /* PEAK-System USB adapter descriptor */ |
| struct peak_usb_adapter { |
| char *name; |
| u32 device_id; |
| u32 ctrlmode_supported; |
| struct can_clock clock; |
| const struct can_bittiming_const * const bittiming_const; |
| const struct can_bittiming_const * const data_bittiming_const; |
| unsigned int ctrl_count; |
| |
| int (*intf_probe)(struct usb_interface *intf); |
| |
| int (*dev_init)(struct peak_usb_device *dev); |
| void (*dev_exit)(struct peak_usb_device *dev); |
| void (*dev_free)(struct peak_usb_device *dev); |
| int (*dev_open)(struct peak_usb_device *dev); |
| int (*dev_close)(struct peak_usb_device *dev); |
| int (*dev_set_bittiming)(struct peak_usb_device *dev, |
| struct can_bittiming *bt); |
| int (*dev_set_data_bittiming)(struct peak_usb_device *dev, |
| struct can_bittiming *bt); |
| int (*dev_set_bus)(struct peak_usb_device *dev, u8 onoff); |
| int (*dev_get_device_id)(struct peak_usb_device *dev, u32 *device_id); |
| int (*dev_decode_buf)(struct peak_usb_device *dev, struct urb *urb); |
| int (*dev_encode_msg)(struct peak_usb_device *dev, struct sk_buff *skb, |
| u8 *obuf, size_t *size); |
| int (*dev_start)(struct peak_usb_device *dev); |
| int (*dev_stop)(struct peak_usb_device *dev); |
| int (*dev_restart_async)(struct peak_usb_device *dev, struct urb *urb, |
| u8 *buf); |
| int (*do_get_berr_counter)(const struct net_device *netdev, |
| struct can_berr_counter *bec); |
| u8 ep_msg_in; |
| u8 ep_msg_out[PCAN_USB_MAX_CHANNEL]; |
| u8 ts_used_bits; |
| u32 ts_period; |
| u8 us_per_ts_shift; |
| u32 us_per_ts_scale; |
| |
| int rx_buffer_size; |
| int tx_buffer_size; |
| int sizeof_dev_private; |
| }; |
| |
| extern const struct peak_usb_adapter pcan_usb; |
| extern const struct peak_usb_adapter pcan_usb_pro; |
| extern const struct peak_usb_adapter pcan_usb_fd; |
| extern const struct peak_usb_adapter pcan_usb_pro_fd; |
| extern const struct peak_usb_adapter pcan_usb_x6; |
| |
| struct peak_time_ref { |
| struct timeval tv_host_0, tv_host; |
| u32 ts_dev_1, ts_dev_2; |
| u64 ts_total; |
| u32 tick_count; |
| const struct peak_usb_adapter *adapter; |
| }; |
| |
| struct peak_tx_urb_context { |
| struct peak_usb_device *dev; |
| u32 echo_index; |
| u8 data_len; |
| struct urb *urb; |
| }; |
| |
| #define PCAN_USB_STATE_CONNECTED 0x00000001 |
| #define PCAN_USB_STATE_STARTED 0x00000002 |
| |
| /* PEAK-System USB device */ |
| struct peak_usb_device { |
| struct can_priv can; |
| const struct peak_usb_adapter *adapter; |
| unsigned int ctrl_idx; |
| u32 state; |
| |
| struct sk_buff *echo_skb[PCAN_USB_MAX_TX_URBS]; |
| |
| struct usb_device *udev; |
| struct net_device *netdev; |
| |
| atomic_t active_tx_urbs; |
| struct usb_anchor tx_submitted; |
| struct peak_tx_urb_context tx_contexts[PCAN_USB_MAX_TX_URBS]; |
| |
| u8 *cmd_buf; |
| struct usb_anchor rx_submitted; |
| |
| u32 device_number; |
| u8 device_rev; |
| |
| u8 ep_msg_in; |
| u8 ep_msg_out; |
| |
| u16 bus_load; |
| |
| struct peak_usb_device *prev_siblings; |
| struct peak_usb_device *next_siblings; |
| }; |
| |
| void pcan_dump_mem(char *prompt, void *p, int l); |
| |
| /* common timestamp management */ |
| void peak_usb_init_time_ref(struct peak_time_ref *time_ref, |
| const struct peak_usb_adapter *adapter); |
| void peak_usb_update_ts_now(struct peak_time_ref *time_ref, u32 ts_now); |
| void peak_usb_set_ts_now(struct peak_time_ref *time_ref, u32 ts_now); |
| void peak_usb_get_ts_tv(struct peak_time_ref *time_ref, u32 ts, |
| struct timeval *tv); |
| int peak_usb_netif_rx(struct sk_buff *skb, |
| struct peak_time_ref *time_ref, u32 ts_low, u32 ts_high); |
| void peak_usb_async_complete(struct urb *urb); |
| void peak_usb_restart_complete(struct peak_usb_device *dev); |
| |
| #endif |