+/**************************************************************************/
+/* File: can_sysdep.h - hides differences between individual Linux kernel */
+/* versions and RT extensions */
+/* */
+/* 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 */
+/* */
+/* 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. */
+/**************************************************************************/
+
#ifndef _CAN_SYSDEP_H
#define _CAN_SYSDEP_H
#include <rtl_core.h>
#include <rtl_mutex.h>
#include <rtl_sched.h>
+#include <time.h>
#endif /*CAN_WITH_RTL*/
/*#define __NO_VERSION__*/
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
+#include <linux/time.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
+#include "lincan_config.h"
+
/*optional features*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))
#define CAN_ENABLE_KERN_FASYNC
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,7)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-#define MINOR_NR \
- (MINOR(file->f_dentry->d_inode->i_rdev))
+#define INODE2MINOR_NR(inode) \
+ (MINOR(inode->i_rdev))
#else /* Linux kernel < 2.5.7 or >= 2.6.0 */
-#define MINOR_NR \
- (minor(file->f_dentry->d_inode->i_rdev))
+#define INODE2MINOR_NR(inode) \
+ (minor(inode->i_rdev))
#endif /* Linux kernel < 2.5.7 or >= 2.6.0 */
#define CAN_IRQ_HANDLED IRQ_HANDLED
#define CAN_IRQ_RETVAL IRQ_RETVAL
#endif /* <=2.5.67 */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
+ #define CAN_IRQ_HANDLER_ARGS(irq_number, dev_id) \
+ int irq_number, void *dev_id, struct pt_regs *regs
+#else /* < 2.6.19 */
+ #define CAN_IRQ_HANDLER_ARGS(irq_number, dev_id) \
+ int irq_number, void *dev_id
+#endif /* < 2.6.19 */
#else /*CAN_WITH_RTL*/
typedef int can_irqreturn_t;
#define CAN_IRQ_NONE 0
#define CAN_IRQ_HANDLED 1
#define CAN_IRQ_RETVAL(x) ((x) != 0)
+ #define CAN_IRQ_HANDLER_ARGS(irq_number, dev_id) \
+ int irq_number, void *dev_id, struct pt_regs *regs
#endif /*CAN_WITH_RTL*/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,33))
#define del_timer_sync del_timer
#endif /* <2.4.0 */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
+ typedef unsigned long can_ioptr_t;
+ #define can_ioptr2ulong(ioaddr) ((unsigned long)(ioaddr))
+ #define can_ulong2ioptr(addr) ((unsigned long)(addr))
+ #define can_inb(ioaddr) inb(ioaddr)
+ #define can_outb(data,ioaddr) outb(data,ioaddr)
+ #define can_inw(ioaddr) inw(ioaddr)
+ #define can_outw(data,ioaddr) outw(data,ioaddr)
+ #define can_inl(ioaddr) inl(ioaddr)
+ #define can_outl(data,ioaddr) outl(data,ioaddr)
+#else /* >=2.6.9 */
+ typedef void __iomem * can_ioptr_t;
+ #define can_ioptr2ulong(ioaddr) ((unsigned long __force)(ioaddr))
+ #define can_ulong2ioptr(addr) ((can_ioptr_t)(addr))
+ #define can_inb(ioaddr) inb(can_ioptr2ulong(ioaddr))
+ #define can_outb(data,ioaddr) outb(data,can_ioptr2ulong(ioaddr))
+ #define can_inw(ioaddr) inw(can_ioptr2ulong(ioaddr))
+ #define can_outw(data,ioaddr) outw(data,can_ioptr2ulong(ioaddr))
+ #define can_inl(ioaddr) inl(can_ioptr2ulong(ioaddr))
+ #define can_outl(data,ioaddr) outl(data,can_ioptr2ulong(ioaddr))
+#endif
+
+#define can_readb readb
+#define can_writeb writeb
+#define can_readw readw
+#define can_writew writew
+#define can_readl readl
+#define can_writel writel
+
+#define can_ioport2ioptr can_ulong2ioptr
+
+#ifdef __HAVE_ARCH_CMPXCHG
+ #define CAN_HAVE_ARCH_CMPXCHG
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+ #define CAN_HAVE_ATOMIC_CMPXCHG
+ #endif
+#endif
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
+ #define can_pci_dev_get(_M_pdev) (_M_pdev)
+ #define can_pci_dev_put(_M_pdev) do {} while(0)
+ #define can_pci_get_device pci_find_device
+ #define can_pci_get_subsys pci_find_subsys
+#else /* > 2.6.0 */
+ #define can_pci_dev_get pci_dev_get
+ #define can_pci_dev_put pci_dev_put
+ #define can_pci_get_device pci_get_device
+ #define can_pci_get_subsys pci_get_subsys
+#endif
+
#ifndef CAN_WITH_RTL
/* Standard LINUX kernel */
#define can_spin_unlock_irqrestore spin_unlock_irqrestore
#define can_spin_lock_init spin_lock_init
-#if defined(CONFIG_PREEMPT) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+#ifndef DEFINE_SPINLOCK
+#define CAN_DEFINE_SPINLOCK(x) can_spinlock_t x = SPIN_LOCK_UNLOCKED
+#else /*DEFINE_SPINLOCK*/
+#define CAN_DEFINE_SPINLOCK DEFINE_SPINLOCK
+#endif /*DEFINE_SPINLOCK*/
+
+#if !defined(CONFIG_PREEMPT_RT) && ( defined(CONFIG_PREEMPT) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) )
#define can_preempt_disable preempt_disable
#define can_preempt_enable preempt_enable
#else /*CONFIG_PREEMPT*/
#define can_printk printk
+/* CAN message timestamp source, it is called from interrupt context */
+#define can_gettimeofday do_gettimeofday
+
#else /*CAN_WITH_RTL*/
#define can_spinlock_t rtl_spinlock_t
#define can_spin_unlock_irqrestore rtl_spin_unlock_irqrestore
#define can_spin_lock_init rtl_spin_lock_init
+#define CAN_DEFINE_SPINLOCK(x) can_spinlock_t x = SPIN_LOCK_UNLOCKED
+
#define can_preempt_disable() do { } while (0)
#define can_preempt_enable() do { } while (0)
/*
* terrible hack to test rtl_file private_data concept, ugh !!!
- * this would result in crash on architectures, where
+ * this would result in crash on architectures, where
* sizeof(int) < sizeof(void *)
*/
#define can_set_rtl_file_private_data(fptr, p) do{ fptr->f_minor=(long)(p); } while(0)
extern can_spinlock_t can_irq_manipulation_lock;
+/* CAN message timestamp source, it is called from interrupt context */
+#define can_gettimeofday(ptr) do {\
+ struct timespec temp_timespec;\
+ clock_gettime(CLOCK_REALTIME,&temp_timespec);\
+ ptr->tv_usec=temp_timespec.tv_nsec/1000;\
+ ptr->tv_sec=temp_timespec.tv_sec;\
+ } while(0)
+
#endif /*CAN_WITH_RTL*/
#endif /*_CAN_SYSDEP_H*/
projects / lincan.git / blobdiff