X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/c83d2264de257ba4817503bdb621bd864226b9df..32cde89b361c7afb67125976c3816e12633b1d4a:/lincan/include/can_sysdep.h

diff --git a/lincan/include/can_sysdep.h b/lincan/include/can_sysdep.h
index 61b439a..5a3b86c 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__*/
@@ -27,6 +37,8 @@
 #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
@@ -134,6 +146,10 @@
   #define del_timer_sync del_timer
 #endif /* <2.4.0 */
 
+#ifdef __HAVE_ARCH_CMPXCHG
+  #define CAN_HAVE_ARCH_CMPXCHG
+#endif
+
 #ifndef CAN_WITH_RTL
 /* Standard LINUX kernel */
 
@@ -145,6 +161,12 @@
 #define can_spin_unlock_irqrestore spin_unlock_irqrestore
 #define can_spin_lock_init         spin_lock_init
 
+#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) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
 #define can_preempt_disable        preempt_disable
 #define can_preempt_enable         preempt_enable
@@ -158,6 +180,9 @@
 
 #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
@@ -168,6 +193,8 @@
 #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)
 
@@ -186,6 +213,14 @@
 
 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*/