Merge branch 'master' into can-usb1
[lincan.git] / lincan / include / can_sysdep.h
index 53e2ce1..1009689 100644 (file)
@@ -1,5 +1,5 @@
-/* can_sysdep.h - hides differences between individual Linux kernel 
- *                versions and RT extensions 
+/* 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
@@ -16,6 +16,7 @@
 #include <rtl_core.h>
 #include <rtl_mutex.h>
 #include <rtl_sched.h>
+#include <time.h>
 #endif /*CAN_WITH_RTL*/
 
 /*#define __NO_VERSION__*/
   #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) 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
 #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*/
 
+#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*/