X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/c6d6f58c34e1b6a4c03d1e86d1abf48eeb6f5624..f82bd1d22c6e3c27e06ded96e89463888cff2b8e:/lincan/include/can_sysdep.h

diff --git a/lincan/include/can_sysdep.h b/lincan/include/can_sysdep.h
index 9e6adf5..7117044 100644
--- a/lincan/include/can_sysdep.h
+++ b/lincan/include/can_sysdep.h
@@ -1,6 +1,14 @@
 #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>
+#endif /*CAN_WITH_RTL*/
+
 /*#define __NO_VERSION__*/
 /*#include <linux/module.h>*/
 
@@ -13,17 +21,32 @@
 #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>
 
+/*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_LINCAN_VME
+#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 */
@@ -41,6 +64,34 @@
   #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)->next=NULL; */ \
+       /* Above not needed for 2.2.x and buggy for 2.4.x */ \
+       (_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))
 
@@ -54,13 +105,24 @@
 
 #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 irqreturn_t;
-  #define IRQ_NONE
-  #define IRQ_HANDLED
-  #define IRQ_RETVAL(x)
+  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 */
+#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)
+#endif /*CAN_WITH_RTL*/
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,33))
    #define can_synchronize_irq(irqnum) synchronize_irq()
@@ -72,4 +134,58 @@
   #define del_timer_sync del_timer
 #endif /* <2.4.0 */
 
+#ifndef CAN_WITH_RTL
+/* Standard LINUX kernel */
+
+#define can_spinlock_t             spinlock_t
+#define can_spin_irqflags_t        unsigned long
+#define can_spin_lock              spin_lock
+#define can_spin_unlock            spin_unlock
+#define can_spin_lock_irqsave      spin_lock_irqsave
+#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))
+#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             enable_irq
+#define can_disable_irq            disable_irq
+
+#define can_printk                 printk
+
+#else /*CAN_WITH_RTL*/
+
+#define can_spinlock_t             rtl_spinlock_t
+#define can_spin_irqflags_t        rtl_irqstate_t
+#define can_spin_lock              rtl_spin_lock
+#define can_spin_unlock            rtl_spin_unlock
+#define can_spin_lock_irqsave      rtl_spin_lock_irqsave
+#define can_spin_unlock_irqrestore rtl_spin_unlock_irqrestore
+#define can_spin_lock_init         rtl_spin_lock_init
+
+#define can_preempt_disable()      do { } while (0)
+#define can_preempt_enable()       do { } while (0)
+
+#define can_enable_irq             rtl_hard_enable_irq
+#define can_disable_irq            rtl_hard_disable_irq
+
+#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;
+
+#endif /*CAN_WITH_RTL*/
+
 #endif /*_CAN_SYSDEP_H*/