-/* can_sysdep.h - hides differences between individual Linux kernel
- * versions and RT extensions
- * Linux CAN-bus device driver.
- * Written 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: can_sysless.h - provides can_sysdep.h definitions to hide */
+/* between Linux kernel and embedded target build */
+/* */
+/* 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
-#ifdef CAN_WITH_RTL
-#include <rtl.h>
-#include <rtl_sync.h>
-#include <rtl_core.h>
-#include <rtl_mutex.h>
-#include <rtl_sched.h>
-#include <time.h>
-#endif /*CAN_WITH_RTL*/
#include <cpu_def.h>
#include <malloc.h>
(type *)( (char *)__mptr - offsetof(type,member) );})
-/*#define __NO_VERSION__*/
-/*#include <linux/module.h>*/
-
-// #include <linux/version.h>
-// #include <linux/wait.h>
-// #include <linux/list.h>
-// #include <linux/fs.h>
-// #include <linux/ioport.h>
-// #include <linux/delay.h>
-// #include <linux/sched.h>
-// #include <linux/interrupt.h>
-// #include <asm/errno.h>
-//
-// #include <asm/io.h>
-// #include <asm/atomic.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
-// #ifdef CONFIG_PCI
-// #define CAN_ENABLE_PCI_SUPPORT
-// #endif
-// #ifdef CONFIG_OC_LINCANVME
-// #define CAN_ENABLE_VME_SUPPORT
-// #endif
-// #endif
-
-// #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
-// #include <linux/malloc.h>
-// #else
-// #include <linux/slab.h>
-// #endif
-
-// #ifdef CAN_ENABLE_PCI_SUPPORT
-// #include "linux/pci.h"
-// #endif /*CAN_ENABLE_PCI_SUPPORT*/
-
-/* Next is not sctrictly correct, because of 2.3.0, 2.3.1, 2.3.2
- kernels need next definitions too */
-// #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,19)) /* may need correction */
- #define wait_queue_head_t struct wait_queue *
- #define wait_queue_t struct wait_queue
- #define init_waitqueue_head(queue_head) (*queue_head=NULL)
- #define init_waitqueue_entry(qentry,qtask) \
- (qentry->next=NULL,qentry->task=qtask)
- #define DECLARE_WAIT_QUEUE_HEAD(name) \
- struct wait_queue * name=NULL
- #define DECLARE_WAITQUEUE(wait, current) \
+
+#define wait_queue_head_t struct wait_queue *
+#define wait_queue_t struct wait_queue
+#define init_waitqueue_head(queue_head) (*queue_head=NULL)
+#define init_waitqueue_entry(qentry,qtask) \
+ (qentry->next=NULL,qentry->task=qtask)
+#define DECLARE_WAIT_QUEUE_HEAD(name) \
+ struct wait_queue * name=NULL
+#define DECLARE_WAITQUEUE(wait, current) \
struct wait_queue wait = { current, NULL }
-// #define init_MUTEX(sem) (*sem=MUTEX)
-// #define DECLARE_MUTEX(name) struct semaphore name=MUTEX
-// #endif /* 2.2.19 */
-
-// #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)) && !defined(DECLARE_TASKLET)
-// #define tasklet_struct tq_struct
-/* #define DECLARE_TASKLET(_name, _func, _data) \
- struct tq_struct _name = { sync: 0, routine: _func, data: (void*)_data }*/
-//
-// /* void tasklet_init(struct tasklet_struct *t, void (*func)(unsigned long), unsigned long data); */
-/* #define tasklet_init(_tasklet, _func, _data) \
- do{ \
- (_tasklet)->sync=0; \
- (_tasklet)->routine=_func; \
- (_tasklet)->data=(void*)_data; \
- }while(0)*/
-//
-// /* void tasklet_schedule(struct tasklet_struct *t) */
-/* #define tasklet_schedule(_tasklet) \
- do{ \
- queue_task(_tasklet,&tq_immediate); \
- mark_bh(IMMEDIATE_BH); \
- }while(0)*/
-//
-// /* void tasklet_kill(struct tasklet_struct *t); */
-/* #define tasklet_kill(_tasklet) \
- synchronize_irq()*/
-//
-// #endif /* 2.4.0 */
-
-
-// #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))
-
-// #else /* Linux kernel < 2.5.7 or >= 2.6.0 */
-//
-/*#define MINOR_NR \
- (minor(file->f_dentry->d_inode->i_rdev))*/
-//
-// #endif /* Linux kernel < 2.5.7 or >= 2.6.0 */
-
-// #ifndef CAN_WITH_RTL
-// #if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) && !defined(IRQ_RETVAL))
- typedef void can_irqreturn_t;
- #define CAN_IRQ_NONE
- #define CAN_IRQ_HANDLED
- #define CAN_IRQ_RETVAL(x)
-// #else /* <=2.5.67 */
-// typedef irqreturn_t can_irqreturn_t;
-// #define CAN_IRQ_NONE IRQ_NONE
-// #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) \
+
+typedef irqreturn_t can_irqreturn_t;
+#define CAN_IRQ_NONE IRQ_NONE
+#define CAN_IRQ_HANDLED IRQ_HANDLED
+#define CAN_IRQ_RETVAL IRQ_RETVAL
+
+#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 can_synchronize_irq(irqnum) synchronize_irq()
-// #else /* >=2.5.33 */
- #define can_synchronize_irq synchronize_irq
-// #endif
-
-// #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
-// #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) inb(ioaddr)
- #define can_outw(data,ioaddr) outb(data,ioaddr)
- #define can_inl(ioaddr) inb(ioaddr)
- #define can_outl(data,ioaddr) outb(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) inb(can_ioptr2ulong(ioaddr))
-// #define can_outw(data,ioaddr) outb(data,can_ioptr2ulong(ioaddr))
-// #define can_inl(ioaddr) inb(can_ioptr2ulong(ioaddr))
-// #define can_outl(data,ioaddr) outb(data,can_ioptr2ulong(ioaddr))
-// #endif
+#define can_synchronize_irq(irqnum) do {} while(0)
+
+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) inb(ioaddr)
+#define can_outw(data,ioaddr) outb(data,ioaddr)
+#define can_inl(ioaddr) inb(ioaddr)
+#define can_outl(data,ioaddr) outb(data,ioaddr)
#define can_readb readb
#define can_writeb writeb
#define CAN_HAVE_ARCH_CMPXCHG
#endif
-// #ifndef CAN_WITH_RTL
-/* Standard LINUX kernel */
-
#define can_spinlock_t long
#define can_spin_irqflags_t unsigned long
-#define can_spin_lock(lock) cli()
-#define can_spin_unlock(lock) sti()
+/* Only one CPU is supposed on sys-less embedded target => no need for spinloks */
+#define can_spin_lock(lock) do { } while (0)
+#define can_spin_unlock(lock) do { } while (0)
+/* Only one CPU is supposed on sys-less embedded target => no need for spinloks */
#define can_spin_lock_irqsave(lock,flags) save_and_cli(flags)
#define can_spin_unlock_irqrestore(lock,flags) restore_flags(flags)
#define can_spin_lock_init can_splck_init
*x=0;
}
-// #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_preempt_disable() do { } while (0)
#define can_preempt_enable() do { } while (0)
-// #endif /*CONFIG_PREEMPT*/
-// #define can_enable_irq sti()
-// #define can_disable_irq cli()
-#define can_enable_irq(var) (var=1)
-#define can_disable_irq(var) (var=0)
+#if 1
+#define can_enable_irq(var) do { } while (0)
+#define can_disable_irq(var) do { } while (0)
+#else
+#define can_enable_irq enable_irq
+#define can_disable_irq disable_irq
+#endif
#define can_printk printf
#define KERN_CRIT
#define test_and_change_bit ____atomic_test_and_change_bit
#define raw_local_irq_save(flags) save_and_cli(flags);
#define raw_local_irq_restore(flags) restore_flags(flags);
+
/*
* These functions are the basis of our bit ops.
*
#endif
};
-static inline void udelay(long time)
-{
- volatile long ticks=(time * CCLK) / 2000000;
- do{
- ticks--;
- }
- while(ticks>0);
-}
-
-// #else /*CAN_WITH_RTL*/
-//
-// #define can_spinlock_t long
-// #define can_spin_irqflags_t unsigned long
-// #define can_spin_lock save_and_cli
-// #define can_spin_unlock restore_flags
-// #define can_spin_lock_irqsave save_and_cli
-// #define can_spin_unlock_irqrestore restore_flags
-// #define can_spin_lock_init can_splck_init
-//
-// #define CAN_DEFINE_SPINLOCK(x) can_spinlock_t x = 0
-//
-// #define can_preempt_disable() do { } while (0)
-// #define can_preempt_enable() do { } while (0)
-//
-// #define can_enable_irq sti
-// #define can_disable_irq cli
-//
-// #define can_printk rtl_printf
-//
-// /*
-// * terrible hack to test rtl_file private_data concept, ugh !!!
-// * 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)
-// #define can_get_rtl_file_private_data(fptr) ((void*)((fptr)->f_minor))
-//
-// 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*/
+void udelay(long time);
#endif /*_CAN_SYSDEP_H*/
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