X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/dd8f5100e766813dca62a82c6b99ebf3648f2448..989218c6c2ba15f150dd815acb978b6ca092c85e:/lincan/include/can_sysdep.h diff --git a/lincan/include/can_sysdep.h b/lincan/include/can_sysdep.h index 0dd0e55..165d4a1 100644 --- a/lincan/include/can_sysdep.h +++ b/lincan/include/can_sysdep.h @@ -1,3 +1,37 @@ +/**************************************************************************/ +/* File: can_sysdep.h - hides differences between individual Linux kernel */ +/* versions and RT extensions */ +/* */ +/* LinCAN - (Not only) Linux CAN bus driver */ +/* Copyright (C) 2002-2009 DCE FEE CTU Prague */ +/* Copyright (C) 2002-2009 Pavel Pisa */ +/* Funded by OCERA and FRESCOR IST projects */ +/* */ +/* LinCAN is free software; you can redistribute it and/or modify it */ +/* under terms of the GNU General Public License as published by the */ +/* Free Software Foundation; either version 2, or (at your option) any */ +/* later version. LinCAN is distributed in the hope that it will be */ +/* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */ +/* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */ +/* General Public License for more details. You should have received a */ +/* copy of the GNU General Public License along with LinCAN; see file */ +/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */ +/* Cambridge, MA 02139, USA. */ +/* */ +/* To allow use of LinCAN in the compact embedded systems firmware */ +/* and RT-executives (RTEMS for example), main authors agree with next */ +/* special exception: */ +/* */ +/* Including LinCAN header files in a file, instantiating LinCAN generics */ +/* or templates, or linking other files with LinCAN objects to produce */ +/* an application image/executable, does not by itself cause the */ +/* resulting application image/executable to be covered by */ +/* the GNU General Public License. */ +/* This exception does not however invalidate any other reasons */ +/* why the executable file might be covered by the GNU Public License. */ +/* Publication of enhanced or derived LinCAN files is required although. */ +/**************************************************************************/ + #ifndef _CAN_SYSDEP_H #define _CAN_SYSDEP_H @@ -7,6 +41,7 @@ #include #include #include +#include #endif /*CAN_WITH_RTL*/ /*#define __NO_VERSION__*/ @@ -20,6 +55,7 @@ #include #include #include +#include #include #include @@ -27,11 +63,18 @@ #include #include +#include "lincan_config.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_LINCANVME +#define CAN_ENABLE_VME_SUPPORT +#endif +#endif #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)) #include @@ -90,13 +133,13 @@ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,7)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) -#define MINOR_NR \ - (MINOR(file->f_dentry->d_inode->i_rdev)) +#define INODE2MINOR_NR(inode) \ + (MINOR(inode->i_rdev)) #else /* Linux kernel < 2.5.7 or >= 2.6.0 */ -#define MINOR_NR \ - (minor(file->f_dentry->d_inode->i_rdev)) +#define INODE2MINOR_NR(inode) \ + (minor(inode->i_rdev)) #endif /* Linux kernel < 2.5.7 or >= 2.6.0 */ @@ -112,11 +155,20 @@ #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)) @@ -129,6 +181,56 @@ #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) inw(ioaddr) + #define can_outw(data,ioaddr) outw(data,ioaddr) + #define can_inl(ioaddr) inl(ioaddr) + #define can_outl(data,ioaddr) outl(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) inw(can_ioptr2ulong(ioaddr)) + #define can_outw(data,ioaddr) outw(data,can_ioptr2ulong(ioaddr)) + #define can_inl(ioaddr) inl(can_ioptr2ulong(ioaddr)) + #define can_outl(data,ioaddr) outl(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 + #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) + #define CAN_HAVE_ATOMIC_CMPXCHG + #endif +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) + #define can_pci_dev_get(_M_pdev) (_M_pdev) + #define can_pci_dev_put(_M_pdev) do {} while(0) + #define can_pci_get_device pci_find_device + #define can_pci_get_subsys pci_find_subsys +#else /* > 2.6.0 */ + #define can_pci_dev_get pci_dev_get + #define can_pci_dev_put pci_dev_put + #define can_pci_get_device pci_get_device + #define can_pci_get_subsys pci_get_subsys +#endif + #ifndef CAN_WITH_RTL /* Standard LINUX kernel */ @@ -140,7 +242,13 @@ #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*/ @@ -153,6 +261,9 @@ #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 @@ -163,6 +274,8 @@ #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) @@ -173,7 +286,7 @@ /* * 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) @@ -181,6 +294,14 @@ 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*/