lincan/include/can_sysdep.h

   1 #ifndef _CAN_SYSDEP_H
   2 #define _CAN_SYSDEP_H
   3
   4 #ifdef CAN_WITH_RTL
   5 #include <rtl.h>
   6 #include <rtl_sync.h>
   7 #include <rtl_core.h>
   8 #include <rtl_mutex.h>
   9 #include <rtl_sched.h>
  10 #endif /*CAN_WITH_RTL*/
  11
  12 /*#define __NO_VERSION__*/
  13 /*#include <linux/module.h>*/
  14
  15 #include <linux/version.h>
  16 #include <linux/wait.h>
  17 #include <linux/list.h>
  18 #include <linux/fs.h>
  19 #include <linux/ioport.h>
  20 #include <linux/delay.h>
  21 #include <linux/sched.h>
  22 #include <linux/interrupt.h>
  23 #include <asm/errno.h>
  24
  25 #include <asm/io.h>
  26 #include <asm/atomic.h>
  27 #include <asm/irq.h>
  28 #include <asm/uaccess.h>
  29
  30 /*optional features*/
  31 #define CAN_ENABLE_KERN_FASYNC
  32 #define CAN_ENABLE_PCI_SUPPORT
  33
  34 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
  35 #include <linux/malloc.h>
  36 #else
  37 #include <linux/slab.h>
  38 #endif
  39
  40 #ifdef CAN_ENABLE_PCI_SUPPORT
  41 #include "linux/pci.h"
  42 #endif /*CAN_ENABLE_PCI_SUPPORT*/
  43
  44 /* Next is not sctrictly correct, because of 2.3.0, 2.3.1, 2.3.2
  45    kernels need next definitions  too */
  46 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,19)) /* may need correction */
  47   #define wait_queue_head_t struct wait_queue *
  48   #define wait_queue_t      struct wait_queue
  49   #define init_waitqueue_head(queue_head) (*queue_head=NULL)
  50   #define init_waitqueue_entry(qentry,qtask) \
  51                         (qentry->next=NULL,qentry->task=qtask)
  52   #define DECLARE_WAIT_QUEUE_HEAD(name) \
  53         struct wait_queue * name=NULL
  54   #define DECLARE_WAITQUEUE(wait, current) \
  55         struct wait_queue wait = { current, NULL }
  56   #define init_MUTEX(sem) (*sem=MUTEX)
  57   #define DECLARE_MUTEX(name) struct semaphore name=MUTEX
  58 #endif /* 2.2.19 */
  59
  60
  61 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,7)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
  62
  63 #define MINOR_NR \
  64         (MINOR(file->f_dentry->d_inode->i_rdev))
  65
  66 #else /* Linux kernel < 2.5.7 or >= 2.6.0 */
  67
  68 #define MINOR_NR \
  69         (minor(file->f_dentry->d_inode->i_rdev))
  70
  71 #endif /* Linux kernel < 2.5.7 or >= 2.6.0 */
  72
  73 #ifndef CAN_WITH_RTL
  74 #if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) && !defined(IRQ_RETVAL))
  75   typedef void can_irqreturn_t;
  76   #define CAN_IRQ_NONE
  77   #define CAN_IRQ_HANDLED
  78   #define CAN_IRQ_RETVAL(x)
  79 #else /* <=2.5.67 */
  80   typedef irqreturn_t can_irqreturn_t;
  81   #define CAN_IRQ_NONE    IRQ_NONE
  82   #define CAN_IRQ_HANDLED IRQ_HANDLED
  83   #define CAN_IRQ_RETVAL  IRQ_RETVAL
  84 #endif /* <=2.5.67 */
  85 #else /*CAN_WITH_RTL*/
  86   typedef int can_irqreturn_t;
  87   #define CAN_IRQ_NONE        0
  88   #define CAN_IRQ_HANDLED     1
  89   #define CAN_IRQ_RETVAL(x)   ((x) != 0)
  90 #endif /*CAN_WITH_RTL*/
  91
  92 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,33))
  93    #define can_synchronize_irq(irqnum) synchronize_irq()
  94 #else /* >=2.5.33 */
  95    #define can_synchronize_irq synchronize_irq
  96 #endif
  97
  98 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
  99   #define del_timer_sync del_timer
 100 #endif /* <2.4.0 */
 101
 102 #ifndef CAN_WITH_RTL
 103 /* Standard LINUX kernel */
 104
 105 #define can_spinlock_t             spinlock_t
 106 #define can_spin_irqflags_t        unsigned long
 107 #define can_spin_lock              spin_lock
 108 #define can_spin_unlock            spin_unlock
 109 #define can_spin_lock_irqsave      spin_lock_irqsave
 110 #define can_spin_unlock_irqrestore spin_unlock_irqrestore
 111 #define can_spin_lock_init         spin_lock_init
 112
 113 #if defined(CONFIG_PREEMPT) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
 114 #define can_preempt_disable        preempt_disable
 115 #define can_preempt_enable         preempt_enable
 116 #else /*CONFIG_PREEMPT*/
 117 #define can_preempt_disable()      do { } while (0)
 118 #define can_preempt_enable()       do { } while (0)
 119 #endif /*CONFIG_PREEMPT*/
 120
 121 #define can_enable_irq             enable_irq
 122 #define can_disable_irq            disable_irq
 123
 124 #define can_printk                 printk
 125
 126 #else /*CAN_WITH_RTL*/
 127
 128 #define can_spinlock_t             rtl_spinlock_t
 129 #define can_spin_irqflags_t        rtl_irqstate_t
 130 #define can_spin_lock              rtl_spin_lock
 131 #define can_spin_unlock            rtl_spin_unlock
 132 #define can_spin_lock_irqsave      rtl_spin_lock_irqsave
 133 #define can_spin_unlock_irqrestore rtl_spin_unlock_irqrestore
 134 #define can_spin_lock_init         rtl_spin_lock_init
 135
 136 #define can_preempt_disable()      do { } while (0)
 137 #define can_preempt_enable()       do { } while (0)
 138
 139 #define can_enable_irq             rtl_hard_enable_irq
 140 #define can_disable_irq            rtl_hard_disable_irq
 141
 142 #define can_printk                 rtl_printf
 143
 144 /*
 145  * terrible hack to test rtl_file private_data concept, ugh !!!
 146  * this would result in crash on architectures,  where
 147  * sizeof(int) < sizeof(void *)
 148  */
 149 #define can_set_rtl_file_private_data(fptr, p) do{ fptr->f_minor=(long)(p); } while(0)
 150 #define can_get_rtl_file_private_data(fptr) ((void*)((fptr)->f_minor))
 151
 152 #endif /*CAN_WITH_RTL*/
 153
 154 #endif /*_CAN_SYSDEP_H*/