-/* bfadcan.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
- */
-
-/* This file is intended as a bfadcan file for currently unsupported hardware.
- * Once you've changed/added the functions specific to your hardware it is
- * possible to load the driver with the hardware option hw=bfadcan.
- */
-
+/**************************************************************************/
+/* File: bfadcan.c - support for BFAD can boards */
+/* */
+/* 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. */
+/**************************************************************************/
#define WINDOWED_ACCESS
#define __NO_VERSION__
#include <linux/module.h>
-long clock_freq;
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-MODULE_PARM(clock_freq,"i");
-#else
-module_param(clock_freq,int,0);
-#endif
+#define CAN_BFAD_CLOCKFREQ 20000000
/* cli and sti are not allowed in 2.5.5x SMP kernels */
#ifdef WINDOWED_ACCESS
#define IO_RANGE 0x100
#endif
-unsigned bfadcan_read_register(unsigned long address);
-void bfadcan_write_register(unsigned data, unsigned long address);
+unsigned bfadcan_read_register(can_ioptr_t address);
+void bfadcan_write_register(unsigned data, can_ioptr_t address);
/**
{
unsigned int id1, id2;
sja1000p_fill_chipspecops(candev->chip[chipnr]);
- candev->chip[chipnr]->chip_base_addr=candev->io_addr;
- candev->chip[chipnr]->clock = clock_freq;
+ candev->chip[chipnr]->chip_base_addr=can_ioport2ioptr(candev->io_addr);
+ if(candev->chip[chipnr]->clock<=0)
+ candev->chip[chipnr]->clock = CAN_BFAD_CLOCKFREQ;
candev->chip[chipnr]->sja_cdr_reg = sjaCDR_CBP | sjaCDR_CLK_OFF;
candev->chip[chipnr]->sja_ocr_reg = sjaOCR_MODE_NORMAL | sjaOCR_TX0_LH;
- id1 = inb(0xe284);
- id2 = inb(0xe285);
+ id1 = can_inb(0xe284);
+ id2 = can_inb(0xe285);
CANMSG("can driver ver lincan-0.3, at %04lx, CPLD v%d.%d.%d.%d\n",
- candev->chip[chipnr]->chip_base_addr,
- id1>>4, id1&0x0f, id2>>4, id2&0x0f);
+ can_ioptr2ulong(candev->chip[chipnr]->chip_base_addr),
+ id1>>4, id1&0x0f, id2>>4, id2&0x0f);
return 0;
* Return Value: The function does not return a value
* File: src/bfadcan.c
*/
-void bfadcan_write_register(unsigned data, unsigned long address)
+void bfadcan_write_register(unsigned data, can_ioptr_t address)
{
#ifdef WINDOWED_ACCESS
can_spin_irqflags_t flags;
can_spin_lock_irqsave(&bfadcan_win_lock,flags);
- outb(address&0x00ff,0x200);
- outb(data, 0x201);
+ can_outb(can_ioptr2ulong(address)&0x00ff,0x200);
+ can_outb(data, 0x201);
can_spin_unlock_irqrestore(&bfadcan_win_lock,flags);
#else
- outb(data,address);
+ can_outb(data,address);
#endif
}
* Return Value: The function returns the value stored in @address
* File: src/bfadcan.c
*/
-unsigned bfadcan_read_register(unsigned long address)
+unsigned bfadcan_read_register(can_ioptr_t address)
{
#ifdef WINDOWED_ACCESS
can_spin_irqflags_t flags;
int ret;
can_spin_lock_irqsave(&bfadcan_win_lock,flags);
- outb(address&0x00ff,0x200);
- ret = inb(0x201);
+ can_outb(can_ioptr2ulong(address)&0x00ff,0x200);
+ ret = can_inb(0x201);
can_spin_unlock_irqrestore(&bfadcan_win_lock,flags);
return ret;
#else
- return inb(address);
+ return can_inb(address);
#endif
}
projects / lincan.git / blobdiff