-/* msmcan.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: msmcan.c - MICROSPACE IO space indexed i82527 PC104 card */
+/* */
+/* 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"
CANMSG("Unable to open port: 0x%lx\n",candev->io_addr);
return -ENODEV;
} else {
- DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", candev->io_addr,
+ DEBUGMSG("Registered IO-memory: 0x%lx - 0x%lx\n", candev->io_addr,
candev->io_addr + IO_RANGE - 1);
}
return 0;
}
-/* The function template_release_io is used to free the previously reserved
+/* The function template_release_io is used to free the previously reserved
* io-memory. In case you reserved more memory, don't forget to free it here.
*/
int msmcan_release_io(struct candevice_t *candev)
if(0) {
int tic=jiffies;
int tac;
-
+
msmcan_write_register(iCTL_INI, chip->chip_base_addr+iCTL);
/*CLKOUT stopped (iCPU_CEN=0) */
msmcan_write_register(iCPU_DSC, chip->chip_base_addr+iCPU);
}
schedule();
}
-
-
+
+
}
can_disable_irq(chip->chip_irq);
#define NR_82527 1
#define NR_SJA1000 0
-int msmcan_init_hw_data(struct candevice_t *candev)
+int msmcan_init_hw_data(struct candevice_t *candev)
{
candev->res_addr=0;
candev->nr_82527_chips=1;
* CAN chip. In case of the sja1000 there's only one message object but on the
* i82527 chip there are 15.
* The code below is for a i82527 chip and initializes the object base addresses
- * The entry obj_base_addr represents the first memory address of the message
+ * The entry obj_base_addr represents the first memory address of the message
* object. In case of the sja1000 obj_base_addr is taken the same as the chips
* base address.
* Unless the hardware uses a segmented memory map, flags can be set zero.
chip->msgobj[objnr]->obj_base_addr=
chip->chip_base_addr+(objnr+1)*0x10;
-
+
return 0;
}
can_spin_lock_irqsave(&msmcan_port_lock,flags);
can_outb(addr & 0xff, (addr>>16)+1);
- can_outb(data, addr>>16);
+ can_outb(data, addr>>16);
can_spin_unlock_irqrestore(&msmcan_port_lock,flags);
}
unsigned msmcan_read_register(can_ioptr_t address)
{
/* this is the same thing that the function write_register.
- We use the two register, we write the address where we
+ We use the two register, we write the address where we
want to read in a first time. In a second time we read the
data */
unsigned char ret;
can_spin_lock_irqsave(&msmcan_port_lock,flags);
can_outb(addr & 0xff, (addr>>16)+1);
- ret=can_inb(addr>>16);
+ ret=can_inb(addr>>16);
can_spin_unlock_irqrestore(&msmcan_port_lock,flags);
return ret;
}
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