X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/b3a9dbb9242e4de75a60e4fefe8ef4e8702ecb21..831ccb1f14f7472962fc2d185f32e18105209bd7:/lincan/include/can_sysdep.h

diff --git a/lincan/include/can_sysdep.h b/lincan/include/can_sysdep.h
index da79948..1009689 100644
--- a/lincan/include/can_sysdep.h
+++ b/lincan/include/can_sysdep.h
@@ -1,3 +1,12 @@
+/* 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
+ */
+
 #ifndef _CAN_SYSDEP_H
 #define _CAN_SYSDEP_H
 
@@ -7,6 +16,7 @@
 #include <rtl_core.h>
 #include <rtl_mutex.h>
 #include <rtl_sched.h>
+#include <time.h>
 #endif /*CAN_WITH_RTL*/
 
 /*#define __NO_VERSION__*/
@@ -119,11 +129,20 @@
   #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))
@@ -136,6 +155,41 @@
   #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_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
+#endif
+
 #ifndef CAN_WITH_RTL
 /* Standard LINUX kernel */
 
@@ -147,7 +201,13 @@
 #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*/
@@ -160,6 +220,9 @@
 
 #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
@@ -170,6 +233,8 @@
 #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)
 
@@ -180,7 +245,7 @@
 
 /*
  * 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)
@@ -188,6 +253,30 @@
 
 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*/
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,4))
+	#include <linux/kthread.h>
+	#define	can_kthread_create	kthread_create
+	#define can_kthread_run	kthread_run
+	#define can_kthread_bind	kthread_bind
+	#define can_kthread_stop	kthread_stop
+	#define can_kthread_should_stop	kthread_should_stop
+#else
+	#define	can_kthread_create
+	#define can_kthread_run
+	#define can_kthread_bind
+	#define can_kthread_stop
+	#define can_kthread_should_stop
+#endif
+
+
 #endif /*_CAN_SYSDEP_H*/