-/* setup.c
- * Linux CAN-bus device driver.
- * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
- * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
- * email:pisa@cmp.felk.cvut.cz
- * This software is released under the GPL-License.
- * Version lincan-0.3 17 Jun 2004
- */
+/**************************************************************************/
+/* File: setup.c - CAN driver and chips setup code */
+/* */
+/* LinCAN - (Not only) Linux CAN bus driver */
+/* Copyright (C) 2002-2009 DCE FEE CTU Prague <http://dce.felk.cvut.cz> */
+/* Copyright (C) 2002-2009 Pavel Pisa <pisa@cmp.felk.cvut.cz> */
+/* Funded by OCERA and FRESCOR IST projects */
+/* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl> */
+/* */
+/* LinCAN is free software; you can redistribute it and/or modify it */
+/* under terms of the GNU General Public License as published by the */
+/* Free Software Foundation; either version 2, or (at your option) any */
+/* later version. LinCAN 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. You should have received a */
+/* copy of the GNU General Public License along with LinCAN; see file */
+/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */
+/* Cambridge, MA 02139, USA. */
+/* */
+/* To allow use of LinCAN in the compact embedded systems firmware */
+/* and RT-executives (RTEMS for example), main authors agree with next */
+/* special exception: */
+/* */
+/* Including LinCAN header files in a file, instantiating LinCAN generics */
+/* or templates, or linking other files with LinCAN objects to produce */
+/* an application image/executable, does not by itself cause the */
+/* resulting application image/executable to be covered by */
+/* the GNU General Public License. */
+/* This exception does not however invalidate any other reasons */
+/* why the executable file might be covered by the GNU Public License. */
+/* Publication of enhanced or derived LinCAN files is required although. */
+/**************************************************************************/
#include "../include/can.h"
#include "../include/can_sysdep.h"
int init_hwspecops(struct candevice_t *candev, int *irqnum_p);
int init_device_struct(int card, int *chan_param_idx_p, int *irq_param_idx_p);
-int init_chip_struct(struct candevice_t *candev, int chipnr, int irq, long baudrate);
+int init_chip_struct(struct candevice_t *candev, int chipnr, int irq, long baudrate, long clock);
int init_obj_struct(struct candevice_t *candev, struct canchip_t *hostchip, int objnr);
int next_minor=0;
* This function is prepared to simplify board specific xxx_request_io() function
* for memory mapped devices.
*/
-int can_base_addr_fixup(struct candevice_t *candev, unsigned long new_base)
+int can_base_addr_fixup(struct candevice_t *candev, can_ioptr_t new_base)
{
- unsigned long offs;
+ long offs;
int i, j;
offs=new_base-candev->dev_base_addr;
int chipnr;
long bd;
int irqsig=-1;
+ long clock;
candev=(struct candevice_t *)can_checked_malloc(sizeof(struct candevice_t));
if (candev==NULL)
candev->hwname=hw[card];
candev->io_addr=io[card];
candev->dev_base_addr=io[card];
+ clock=clockfreq[card];
candev->hwspecops=(struct hwspecops_t *)can_checked_malloc(sizeof(struct hwspecops_t));
if (candev->hwspecops==NULL)
bd=baudrate[*chan_param_idx_p+chipnr];
if(!bd) bd=baudrate[0];
- if ((ret=init_chip_struct(candev, chipnr, irqsig, bd*1000)))
+ if ((ret=init_chip_struct(candev, chipnr, irqsig, bd*1000, clock*1000)))
goto error_chip;
}
* @chipnr: index of the chip in the corresponding device/board structure
* @irq: chip IRQ number or (-1) if not appropriate
* @baudrate: baudrate in the units of 1Bd
+ * @clock: optional chip base clock frequency in 1Hz step
*
* Chip structure is allocated and chip specific operations are filled by
* call to board specific init_chip_data() which calls chip specific
*
* Return Value: returns negative number in the case of fail
*/
-int init_chip_struct(struct candevice_t *candev, int chipnr, int irq, long baudrate)
+int init_chip_struct(struct candevice_t *candev, int chipnr, int irq, long baudrate, long clock)
{
struct canchip_t *chip;
int objnr;
chip->hostdevice=candev;
chip->chip_irq=irq;
chip->baudrate=baudrate;
+ chip->clock=clock;
chip->flags=0x0;
if(candev->hwspecops->init_chip_data(candev,chipnr)<0)
projects / lincan.git / blobdiff