Commit 4c72c53b authored by David S. Miller's avatar David S. Miller
Browse files

Merge tag 'linux-can-next-for-3.20-20150128' of... 

Merge tag 'linux-can-next-for-3.20-20150128' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next



Marc Kleine-Budde says:

====================
pull-request: can-next 2015-28-01

this is a pull request of 12 patches for net-next/master.

There are 3 patches by Ahmed S. Darwish, which update the kvaser_usb
driver and add support for the USBcan-II based adapters. Stéphane
Grosjean contributes 7 patches for the peak_usb driver, which add
support for the CANFD USB adapters. I contribute 2 patches which clean
up the peak_usb driver structure a bit.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 4b222ca6 0a25e1f4

drivers/net/can/usb/Kconfig

+18 −4
Original line number Diff line number Diff line
@@ -25,7 +25,7 @@ config CAN_KVASER_USB 
	tristate "Kvaser CAN/USB interface"

	---help---

	  This driver adds support for Kvaser CAN/USB devices like Kvaser

	  Leaf Light.

	  Leaf Light and Kvaser USBcan II.



	  The driver provides support for the following devices:

	    - Kvaser Leaf Light
@@ -46,6 +46,12 @@ config CAN_KVASER_USB 
	    - Kvaser USBcan R

	    - Kvaser Leaf Light v2

	    - Kvaser Mini PCI Express HS

	    - Kvaser USBcan II HS/HS

	    - Kvaser USBcan II HS/LS

	    - Kvaser USBcan Rugged ("USBcan Rev B")

	    - Kvaser Memorator HS/HS

	    - Kvaser Memorator HS/LS

	    - Scania VCI2 (if you have the Kvaser logo on top)



	  If unsure, say N.
@@ -53,10 +59,18 @@ config CAN_KVASER_USB 
	  module will be called kvaser_usb.



config CAN_PEAK_USB

	tristate "PEAK PCAN-USB/USB Pro interfaces"

	tristate "PEAK PCAN-USB/USB Pro interfaces for CAN 2.0b/CAN-FD"

	---help---

	  This driver supports the PCAN-USB and PCAN-USB Pro adapters

	  from PEAK-System Technik (http://www.peak-system.com).

	  This driver supports the PEAK-System Technik USB adapters that enable

	  access to the CAN bus, with repect to the CAN 2.0b and/or CAN-FD

	  standards, that is:



	  PCAN-USB             single CAN 2.0b channel USB adapter

	  PCAN-USB Pro         dual CAN 2.0b channels USB adapter

	  PCAN-USB FD          single CAN-FD channel USB adapter

	  PCAN-USB Pro FD      dual CAN-FD channels USB adapter



	  (see also http://www.peak-system.com).



config CAN_8DEV_USB

	tristate "8 devices USB2CAN interface"

drivers/net/can/usb/kvaser_usb.c

+540 −182

File changed.

Preview size limit exceeded, changes collapsed.

drivers/net/can/usb/peak_usb/Makefile

+1 −1
Original line number Diff line number Diff line 
obj-$(CONFIG_CAN_PEAK_USB) += peak_usb.o

peak_usb-y = pcan_usb_core.o pcan_usb.o pcan_usb_pro.o
 
peak_usb-y = pcan_usb_core.o pcan_usb.o pcan_usb_pro.o pcan_usb_fd.o

drivers/net/can/usb/peak_usb/pcan_ucan.h

0 → 100644
+222 −0
Original line number Diff line number Diff line 
/*

 * 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 PUCAN_H

#define PUCAN_H



/* uCAN commands opcodes list (low-order 10 bits) */

#define PUCAN_CMD_NOP			0x000

#define PUCAN_CMD_RESET_MODE		0x001

#define PUCAN_CMD_NORMAL_MODE		0x002

#define PUCAN_CMD_LISTEN_ONLY_MODE	0x003

#define PUCAN_CMD_TIMING_SLOW		0x004

#define PUCAN_CMD_TIMING_FAST		0x005

#define PUCAN_CMD_FILTER_STD		0x008

#define PUCAN_CMD_TX_ABORT		0x009

#define PUCAN_CMD_WR_ERR_CNT		0x00a

#define PUCAN_CMD_RX_FRAME_ENABLE	0x00b

#define PUCAN_CMD_RX_FRAME_DISABLE	0x00c

#define PUCAN_CMD_END_OF_COLLECTION	0x3ff



/* uCAN received messages list */

#define PUCAN_MSG_CAN_RX		0x0001

#define PUCAN_MSG_ERROR			0x0002

#define PUCAN_MSG_STATUS		0x0003

#define PUCAN_MSG_BUSLOAD		0x0004

#define PUCAN_MSG_CAN_TX		0x1000



/* uCAN command common header */

struct __packed pucan_command {

	__le16	opcode_channel;

	u16	args[3];

};



/* uCAN TIMING_SLOW command fields */

#define PUCAN_TSLOW_SJW_T(s, t)		(((s) & 0xf) | ((!!(t)) << 7))

#define PUCAN_TSLOW_TSEG2(t)		((t) & 0xf)

#define PUCAN_TSLOW_TSEG1(t)		((t) & 0x3f)

#define PUCAN_TSLOW_BRP(b)		((b) & 0x3ff)



struct __packed pucan_timing_slow {

	__le16	opcode_channel;



	u8	ewl;		/* Error Warning limit */

	u8	sjw_t;		/* Sync Jump Width + Triple sampling */

	u8	tseg2;		/* Timing SEGment 2 */

	u8	tseg1;		/* Timing SEGment 1 */



	__le16	brp;		/* BaudRate Prescaler */

};



/* uCAN TIMING_FAST command fields */

#define PUCAN_TFAST_SJW(s)		((s) & 0x3)

#define PUCAN_TFAST_TSEG2(t)		((t) & 0x7)

#define PUCAN_TFAST_TSEG1(t)		((t) & 0xf)

#define PUCAN_TFAST_BRP(b)		((b) & 0x3ff)



struct __packed pucan_timing_fast {

	__le16	opcode_channel;



	u8	unused;

	u8	sjw;		/* Sync Jump Width */

	u8	tseg2;		/* Timing SEGment 2 */

	u8	tseg1;		/* Timing SEGment 1 */



	__le16	brp;		/* BaudRate Prescaler */

};



/* uCAN FILTER_STD command fields */

#define PUCAN_FLTSTD_ROW_IDX_BITS	6



struct __packed pucan_filter_std {

	__le16	opcode_channel;



	__le16	idx;

	__le32	mask;		/* CAN-ID bitmask in idx range */

};



/* uCAN WR_ERR_CNT command fields */

#define PUCAN_WRERRCNT_TE		0x4000	/* Tx error cntr write Enable */

#define PUCAN_WRERRCNT_RE		0x8000	/* Rx error cntr write Enable */



struct __packed pucan_wr_err_cnt {

	__le16	opcode_channel;



	__le16	sel_mask;

	u8	tx_counter;	/* Tx error counter new value */

	u8	rx_counter;	/* Rx error counter new value */



	u16	unused;

};



/* uCAN RX_FRAME_ENABLE command fields */

#define PUCAN_FLTEXT_ERROR		0x0001

#define PUCAN_FLTEXT_BUSLOAD		0x0002



struct __packed pucan_filter_ext {

	__le16	opcode_channel;



	__le16	ext_mask;

	u32	unused;

};



/* uCAN received messages global format */

struct __packed pucan_msg {

	__le16	size;

	__le16	type;

	__le32	ts_low;

	__le32	ts_high;

};



/* uCAN flags for CAN/CANFD messages */

#define PUCAN_MSG_SELF_RECEIVE		0x80

#define PUCAN_MSG_ERROR_STATE_IND	0x40	/* error state indicator */

#define PUCAN_MSG_BITRATE_SWITCH	0x20	/* bitrate switch */

#define PUCAN_MSG_EXT_DATA_LEN		0x10	/* extended data length */

#define PUCAN_MSG_SINGLE_SHOT		0x08

#define PUCAN_MSG_LOOPED_BACK		0x04

#define PUCAN_MSG_EXT_ID		0x02

#define PUCAN_MSG_RTR			0x01



struct __packed pucan_rx_msg {

	__le16	size;

	__le16	type;

	__le32	ts_low;

	__le32	ts_high;

	__le32	tag_low;

	__le32	tag_high;

	u8	channel_dlc;

	u8	client;

	__le16	flags;

	__le32	can_id;

	u8	d[0];

};



/* uCAN error types */

#define PUCAN_ERMSG_BIT_ERROR		0

#define PUCAN_ERMSG_FORM_ERROR		1

#define PUCAN_ERMSG_STUFF_ERROR		2

#define PUCAN_ERMSG_OTHER_ERROR		3

#define PUCAN_ERMSG_ERR_CNT_DEC		4



struct __packed pucan_error_msg {

	__le16	size;

	__le16	type;

	__le32	ts_low;

	__le32	ts_high;

	u8	channel_type_d;

	u8	code_g;

	u8	tx_err_cnt;

	u8	rx_err_cnt;

};



#define PUCAN_BUS_PASSIVE		0x20

#define PUCAN_BUS_WARNING		0x40

#define PUCAN_BUS_BUSOFF		0x80



struct __packed pucan_status_msg {

	__le16	size;

	__le16	type;

	__le32	ts_low;

	__le32	ts_high;

	u8	channel_p_w_b;

	u8	unused[3];

};



/* uCAN transmitted message format */

#define PUCAN_MSG_CHANNEL_DLC(c, d)	(((c) & 0xf) | ((d) << 4))



struct __packed pucan_tx_msg {

	__le16	size;

	__le16	type;

	__le32	tag_low;

	__le32	tag_high;

	u8	channel_dlc;

	u8	client;

	__le16	flags;

	__le32	can_id;

	u8	d[0];

};



/* build the cmd opcode_channel field with respect to the correct endianness */

static inline __le16 pucan_cmd_opcode_channel(struct peak_usb_device *dev,

					      int opcode)

{

	return cpu_to_le16(((dev->ctrl_idx) << 12) | ((opcode) & 0x3ff));

}



/* return the channel number part from any received message channel_dlc field */

static inline int pucan_msg_get_channel(struct pucan_rx_msg *rm)

{

	return rm->channel_dlc & 0xf;

}



/* return the dlc value from any received message channel_dlc field */

static inline int pucan_msg_get_dlc(struct pucan_rx_msg *rm)

{

	return rm->channel_dlc >> 4;

}



static inline int pucan_ermsg_get_channel(struct pucan_error_msg *em)

{

	return em->channel_type_d & 0x0f;

}



static inline int pucan_stmsg_get_channel(struct pucan_status_msg *sm)

{

	return sm->channel_p_w_b & 0x0f;

}



#endif

drivers/net/can/usb/peak_usb/pcan_usb.c

+2 −1
Original line number Diff line number Diff line
@@ -855,10 +855,11 @@ static int pcan_usb_probe(struct usb_interface *intf) 
/*

 * describe the PCAN-USB adapter

 */

struct peak_usb_adapter pcan_usb = {

const struct peak_usb_adapter pcan_usb = {

	.name = "PCAN-USB",

	.device_id = PCAN_USB_PRODUCT_ID,

	.ctrl_count = 1,

	.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES | CAN_CTRLMODE_LISTENONLY,

	.clock = {

		.freq = PCAN_USB_CRYSTAL_HZ / 2 ,

	},

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