#ifdef MODULE
#include <linux/module.h>
-#include <linux/version.h>
#include <linux/interrupt.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,10)
MODULE_LICENSE("GPL");
-#endif
#endif
#endif
/* wait queue for interrupts */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,1)
wait_queue_head_t dt3155_read_wait_queue[ MAXBOARDS ];
-#else
-struct wait_queue *dt3155_read_wait_queue[ MAXBOARDS ];
-#endif
#define DT_3155_SUCCESS 0
#define DT_3155_FAILURE -EIO
{
int minor = -1;
int index;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
unsigned long flags;
-#else
- int flags;
-#endif
u_long buffer_addr;
/* find out who issued the interrupt */
buffer_addr = dt3155_fbuffer[ minor ]->
frame_info[ dt3155_fbuffer[ minor ]->active_buf ].addr
+ (DT3155_MAX_ROWS / 2) * stride;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
local_save_flags(flags);
local_irq_disable();
-#else
- save_flags( flags );
- cli();
-#endif
wake_up_interruptible( &dt3155_read_wait_queue[ minor ] );
/* Set up the DMA address for the next field */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
local_irq_restore(flags);
-#else
- restore_flags( flags );
-#endif
WriteMReg((dt3155_lbase[ minor ] + ODD_DMA_START), buffer_addr);
}
DT3155_STATE_FLD )
{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
local_save_flags(flags);
local_irq_disable();
-#else
- save_flags( flags );
- cli();
-#endif
#ifdef DEBUG_QUES_B
printques( minor );
wake_up_interruptible( &dt3155_read_wait_queue[ minor ] );
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
local_irq_restore(flags);
-#else
- restore_flags( flags );
-#endif
}
/* which device are we mmapping? */
int minor = MINOR(file->f_dentry->d_inode->i_rdev);
unsigned long offset;
-
- /* not actually sure when vm_area_struct changed,
- but it was in 2.3 sometime */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,20)
-
offset = vma->vm_pgoff << PAGE_SHIFT;
if (offset >= __pa(high_memory) || (file->f_flags & O_SYNC))
/* Don't try to swap out physical pages.. */
vma->vm_flags |= VM_RESERVED;
-#else
-
- if (vma->vm_offset & ~PAGE_MASK)
- return -ENXIO;
-
- offset = vma->vm_offset;
-
-#endif
-
/* they are mapping the registers or the buffer */
if ((offset == dt3155_status[minor].reg_addr &&
vma->vm_end - vma->vm_start == PCI_PAGE_SIZE) ||
(offset == dt3155_status[minor].mem_addr &&
vma->vm_end - vma->vm_start == dt3155_status[minor].mem_size))
{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
if (remap_pfn_range(vma,
vma->vm_start,
offset >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
-#else
- if (remap_page_range(vma->vm_start,
- offset,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
-#endif
- {
+ vma->vm_page_prot)) {
printk("DT3155: remap_page_range() failed.\n");
return -EAGAIN;
}
printk("DT3155: Device opened.\n");
dt3155_dev_open[ minor ] = 1 ;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- MOD_INC_USE_COUNT;
-#endif
dt3155_flush( minor );
int_csr_r.reg = 0;
WriteMReg( (dt3155_lbase[ minor ] + INT_CSR), int_csr_r.reg );
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,1)
init_waitqueue_head(&(dt3155_read_wait_queue[minor]));
-#else
- dt3155_read_wait_queue[minor] = NULL;
-#endif
return 0;
}
}
else
{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- MOD_DEC_USE_COUNT;
-#endif
dt3155_dev_open[ minor ] = 0;
if (dt3155_status[ minor ].state != DT3155_STATE_IDLE)
/* if (dt3155_status[minor].state == DT3155_STATE_IDLE)*/
/* return -EBUSY;*/
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,1)
-
/* non-blocking reads should return if no data */
if (filep->f_flags & O_NDELAY)
{
}
}
-#else
- while ((frame_index = dt3155_get_ready_buffer(minor)) < 0 )
- {
- int index;
- if (filep->f_flags & O_NDELAY)
- return 0;
-
- /* sleep till data arrives , or we get interrupted */
- interruptible_sleep_on(&dt3155_read_wait_queue[minor]);
- for (index = 0; index < _NSIG_WORDS; index++)
- {
- /*
- * Changing the next line of code below to this:
- * if (current->pending.signal.sig[index] &
- * ~current->blocked.sig[index])
- * would also work on a 2.4 kernel, however, the above
- * method is preferred & more portable.
- */
- if (current->signal.sig[index] & ~current->blocked.sig[index])
- {
- printk ("DT3155: read: interrupted\n");
- return -EINTR;
- }
- }
- }
-
-#endif
-
frame_info_p = &dt3155_status[minor].fbuffer.frame_info[frame_index];
/* make this an offset */
int rcode = 0;
char *devname[ MAXBOARDS ];
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,1)
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- SET_MODULE_OWNER(&dt3155_fops);
-#endif
-#endif
-
devname[ 0 ] = "dt3155a";
#if MAXBOARDS == 2
devname[ 1 ] = "dt3155b";
/* Now let's find the hardware. find_PCI() will set ndevices to the
* number of cards found in this machine. */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- if ( !(pcibios_present()) )
- {
- printk("DT3155: Error: No PCI bios on this machine \n");
- if( unregister_chrdev( dt3155_major, "dt3155" ) != 0 )
- printk("DT3155: cleanup_module failed\n");
-
- return DT_3155_FAILURE;
- }
- else
-#endif
{
if ( (rcode = find_PCI()) != DT_3155_SUCCESS )
{
free_irq( dt3155_status[ index ].irq, (void*)&dt3155_status[index] );
}
}
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- if (MOD_IN_USE)
- printk("DT3155: device busy, remove delayed\n");
-#endif
}
+++ /dev/null
-/*
- * sysdep.h -- centralizing compatibility issues between 2.0, 2.2, 2.4
- *
- * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet
- * Copyright (C) 2001 O'Reilly & Associates
- *
- * The source code in this file can be freely used, adapted,
- * and redistributed in source or binary form, so long as an
- * acknowledgment appears in derived source files. The citation
- * should list that the code comes from the book "Linux Device
- * Drivers" by Alessandro Rubini and Jonathan Corbet, published
- * by O'Reilly & Associates. No warranty is attached;
- * we cannot take responsibility for errors or fitness for use.
- *
- * $Id: sysdep.h,v 1.2 2005/08/09 06:08:51 ssmedley Exp $
- */
-
-
-#ifndef _SYSDEP_H_
-#define _SYSDEP_H_
-
-#ifndef LINUX_VERSION_CODE
-# include <linux/version.h>
-#endif
-
-#ifndef KERNEL_VERSION /* pre-2.1.90 didn't have it */
-# define KERNEL_VERSION(vers,rel,seq) ( ((vers)<<16) | ((rel)<<8) | (seq) )
-#endif
-
-/* only allow 2.0.x 2.2.y and 2.4.z */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,0,0) /* not < 2.0 */
-# error "This kernel is too old: not supported by this file"
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,7,0) /* not > 2.7, by now */
-# error "This kernel is too recent: not supported by this file"
-#endif
-#if (LINUX_VERSION_CODE & 0xff00) == 1 /* not 2.1 */
-# error "Please don't use linux-2.1, use 2.2, 2.4 or 2.6 instead"
-#endif
-#if (LINUX_VERSION_CODE & 0xff00) == 3 /* not 2.3 */
-# error "Please don't use linux-2.3, use 2.4 or 2.6 instead"
-#endif
-
-/* remember about the current version */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
-# define LINUX_20
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
-# define LINUX_22
-#else
-# define LINUX_24
-#endif
-
-/* we can't support versioning in pre-2.4 because we #define some functions */
-#if !defined(LINUX_24) && defined(CONFIG_MODVERSIONS)
-# error "This sysdep.h can't support CONFIG_MODVERSIONS"
-# error "and old kernels at the same time."
-# error "Either use 2.4 or avoid using versioning"
-#endif
-
-#ifndef LINUX_20 /* include vmalloc.h if this is 2.2/2.4 */
-# ifdef VM_READ /* a typical flag defined by mm.h */
-# include <linux/vmalloc.h>
-# endif
-#endif
-
-#include <linux/sched.h>
-
-/* Modularization issues */
-#ifdef LINUX_20
-# define __USE_OLD_SYMTAB__
-# define EXPORT_NO_SYMBOLS register_symtab(NULL);
-# define REGISTER_SYMTAB(tab) register_symtab(tab)
-#else
-# define REGISTER_SYMTAB(tab) /* nothing */
-#endif
-
-#ifdef __USE_OLD_SYMTAB__
-# define __MODULE_STRING(s) /* nothing */
-# define MODULE_PARM(v,t) /* nothing */
-# define MODULE_PARM_DESC(v,t) /* nothing */
-# define MODULE_AUTHOR(n) /* nothing */
-# define MODULE_DESCRIPTION(d) /* nothing */
-# define MODULE_SUPPORTED_DEVICE(n) /* nothing */
-#endif
-
-/*
- * In version 2.2 (up to 2.2.19, at least), the macro for request_module()
- * when no kmod is there is wrong. It's a "do {} while 0" but it shouldbe int
- */
-#ifdef LINUX_22
-# ifndef CONFIG_KMOD
-# undef request_module
-# define request_module(name) -ENOSYS
-# endif
-#endif
-
-
-#ifndef LINUX_20
-# include <linux/init.h> /* module_init/module_exit */
-#endif
-
-#ifndef module_init
-# define module_init(x) int init_module(void) { return x(); }
-# define module_exit(x) void cleanup_module(void) { x(); }
-#endif
-
-#ifndef SET_MODULE_OWNER
-# define SET_MODULE_OWNER(structure) /* nothing */
-#endif
-
-/*
- * "select" changed in 2.1.23. The implementation is twin, but this
- * header is new
- *
- */
-#ifdef LINUX_20
-# define __USE_OLD_SELECT__
-#else
-# include <linux/poll.h>
-#endif
-
-#ifdef LINUX_20
-# define INODE_FROM_F(filp) ((filp)->f_inode)
-#else
-# define INODE_FROM_F(filp) ((filp)->f_dentry->d_inode)
-#endif
-
-/* Other changes in the fops are solved using wrappers */
-
-/*
- * Wait queues changed with 2.3
- */
-#ifndef DECLARE_WAIT_QUEUE_HEAD
-# define DECLARE_WAIT_QUEUE_HEAD(head) struct wait_queue *head = NULL
- typedef struct wait_queue *wait_queue_head_t;
-# define init_waitqueue_head(head) (*(head)) = NULL
-
-/* offer wake_up_sync as an alias for wake_up */
-# define wake_up_sync(head) wake_up(head)
-# define wake_up_interruptible_sync(head) wake_up_interruptible(head)
-
-/* Pretend we have add_wait_queue_exclusive */
-# define add_wait_queue_exclusive(q,entry) add_wait_queue ((q), (entry))
-
-#endif /* no DECLARE_WAIT_QUEUE_HEAD */
-
-/*
- * Define wait_event for 2.0 kernels. (This ripped off directly from
- * the 2.2.18 sched.h)
- */
-#ifdef LINUX_20
-
-#define __wait_event(wq, condition) \
-do { \
- struct wait_queue __wait; \
- \
- __wait.task = current; \
- add_wait_queue(&wq, &__wait); \
- for (;;) { \
- current->state = TASK_UNINTERRUPTIBLE; \
- mb(); \
- if (condition) \
- break; \
- schedule(); \
- } \
- current->state = TASK_RUNNING; \
- remove_wait_queue(&wq, &__wait); \
-} while (0)
-
-#define wait_event(wq, condition) \
-do { \
- if (condition) \
- break; \
- __wait_event(wq, condition); \
-} while (0)
-
-#define __wait_event_interruptible(wq, condition, ret) \
-do { \
- struct wait_queue __wait; \
- \
- __wait.task = current; \
- add_wait_queue(&wq, &__wait); \
- for (;;) { \
- current->state = TASK_INTERRUPTIBLE; \
- mb(); \
- if (condition) \
- break; \
- if (!signal_pending(current)) { \
- schedule(); \
- continue; \
- } \
- ret = -ERESTARTSYS; \
- break; \
- } \
- current->state = TASK_RUNNING; \
- remove_wait_queue(&wq, &__wait); \
-} while (0)
-
-#define wait_event_interruptible(wq, condition) \
-({ \
- int __ret = 0; \
- if (!(condition)) \
- __wait_event_interruptible(wq, condition, __ret); \
- __ret; \
-})
-#endif
-
-
-/*
- * 2.3 added tasklets
- */
-#ifdef LINUX_24
-# define HAVE_TASKLETS
-#endif
-
-
-
-
-/* FIXME: implement the other versions of wake_up etc */
-
-
-/*
- * access to user space: use the 2.2 functions,
- * and implement them as macros for 2.0
- */
-
-#ifdef LINUX_20
-# include <asm/segment.h>
-# define access_ok(t,a,sz) (verify_area((t),(void *) (a),(sz)) ? 0 : 1)
-# define verify_area_20 verify_area
-# define copy_to_user(t,f,n) (memcpy_tofs((t), (f), (n)), 0)
-# define copy_from_user(t,f,n) (memcpy_fromfs((t), (f), (n)), 0)
-# define __copy_to_user(t,f,n) copy_to_user((t), (f), (n))
-# define __copy_from_user(t,f,n) copy_from_user((t), (f), (n))
-
-# define PUT_USER(val,add) (put_user((val),(add)), 0)
-# define __PUT_USER(val,add) PUT_USER((val),(add))
-
-# define GET_USER(dest,add) ((dest)=get_user((add)), 0)
-# define __GET_USER(dest,add) GET_USER((dest),(add))
-#else
-# include <asm/uaccess.h>
-# include <asm/io.h>
-# define verify_area_20(t,a,sz) (0) /* == success */
-# define PUT_USER put_user
-# define __PUT_USER __put_user
-# define GET_USER get_user
-# define __GET_USER __get_user
-#endif
-
-/*
- * Allocation issues
- */
-#ifdef GFP_USER /* only if mm.h has been included */
-# ifdef LINUX_20
-# define __GFP_DMA GFP_DMA /* 2.0 didn't have the leading __ */
-# endif
-# ifndef LINUX_24
-# define __GFP_HIGHMEM 0 /* was not there */
-# define GFP_HIGHUSER 0 /* idem */
-# endif
-
-# ifdef LINUX_20
-# define __get_free_pages(a,b) __get_free_pages((a),(b),0)
-# endif
-# ifndef LINUX_24
-# define get_zeroed_page get_free_page
-# endif
-#endif
-
-/* ioremap */
-#if defined(LINUX_20) && defined(_LINUX_MM_H)
-# define ioremap_nocache ioremap
-# ifndef __i386__
- /* This simple approach works for non-PC platforms. */
-# define ioremap vremap
-# define iounmap vfree
-# else /* the PC has <expletive> ISA; 2.2 and 2.4 remap it, 2.0 needs not */
-extern inline void *ioremap(unsigned long phys_addr, unsigned long size)
-{
- if (phys_addr >= 0xA0000 && phys_addr + size <= 0x100000)
- return (void *)phys_addr;
- return vremap(phys_addr, size);
-}
-
-extern inline void iounmap(void *addr)
-{
- if ((unsigned long)addr >= 0xA0000
- && (unsigned long)addr < 0x100000)
- return;
- vfree(addr);
-}
-# endif
-#endif
-
-/* Also, define check_mem_region etc */
-#ifndef LINUX_24
-# define check_mem_region(a,b) 0 /* success */
-# define request_mem_region(a,b,c) /* nothing */
-# define release_mem_region(a,b) /* nothing */
-#endif
-
-/* implement capable() for 2.0 */
-#ifdef LINUX_20
-# define capable(anything) suser()
-#endif
-
-/* The use_count of exec_domain and binfmt changed in 2.1.23 */
-
-#ifdef LINUX_20
-# define INCRCOUNT(p) ((p)->module ? __MOD_INC_USE_COUNT((p)->module) : 0)
-# define DECRCOUNT(p) ((p)->module ? __MOD_DEC_USE_COUNT((p)->module) : 0)
-# define CURRCOUNT(p) ((p)->module && (p)->module->usecount)
-#else
-# define INCRCOUNT(p) ((p)->use_count++)
-# define DECRCOUNT(p) ((p)->use_count--)
-# define CURRCOUNT(p) ((p)->use_count)
-#endif
-
-/*
- * /proc has changed a lot across the versions...
- */
-#ifdef LINUX_20
-# define USE_PROC_REGISTER
-#endif
-
-
-/*
- * 2.2 didn't have create_proc_{read|info}_entry yet.
- * And it looks like there are no other "interesting" entry point, as
- * the rest is somehow esotique (mknod, symlink, ...)
- */
-#ifdef LINUX_22
-# ifdef PROC_SUPER_MAGIC /* Only if procfs is being used */
-extern inline struct proc_dir_entry *create_proc_read_entry(const char *name,
- mode_t mode, struct proc_dir_entry *base,
- read_proc_t *read_proc, void * data)
-{
- struct proc_dir_entry *res=create_proc_entry(name,mode,base);
- if (res) {
- res->read_proc=read_proc;
- res->data=data;
- }
- return res;
-}
-
-# ifndef create_proc_info_entry /* added in 2.2.18 */
-typedef int (get_info_t)(char *, char **, off_t, int, int);
-extern inline struct proc_dir_entry *create_proc_info_entry(const char *name,
- mode_t mode, struct proc_dir_entry *base, get_info_t *get_info)
-{
- struct proc_dir_entry *res=create_proc_entry(name,mode,base);
- if (res) res->get_info=get_info;
- return res;
-}
-# endif /* no create_proc_info_entry */
-# endif
-#endif
-
-#ifdef LINUX_20
-# define test_and_set_bit(nr,addr) test_bit((nr),(addr))
-# define test_and_clear_bit(nr,addr) clear_bit((nr),(addr))
-# define test_and_change_bit(nr,addr) change_bit((nr),(addr))
-#endif
-
-
-/* 2.0 had no read and write memory barriers, and 2.2 lacks the
- set_ functions */
-#ifndef LINUX_24
-# ifdef LINUX_20
-# define wmb() mb() /* this is a big penalty on non-reordering platfs */
-# define rmb() mb() /* this is a big penalty on non-reordering platfs */
-# endif /* LINUX_20 */
-
-#define set_mb() do { var = value; mb(); } while (0)
-#define set_wmb() do { var = value; wmb(); } while (0)
-#endif /* ! LINUX_24 */
-
-
-
-/* 2.1.30 removed these functions. Let's define them, just in case */
-#ifndef LINUX_20
-# define queue_task_irq queue_task
-# define queue_task_irq_off queue_task
-#endif
-
-/* 2.1.10 and 2.1.43 introduced new functions. They are worth using */
-
-#ifdef LINUX_20
-
-# include <asm/byteorder.h>
-# ifdef __LITTLE_ENDIAN
-# define cpu_to_le16(x) (x)
-# define cpu_to_le32(x) (x)
-# define cpu_to_be16(x) htons((x))
-# define cpu_to_be32(x) htonl((x))
-# else
-# define cpu_to_be16(x) (x)
-# define cpu_to_be32(x) (x)
- extern inline __u16 cpu_to_le16(__u16 x) { return (x<<8) | (x>>8);}
- extern inline __u32 cpu_to_le32(__u32 x) { return (x>>24) |
- ((x>>8)&0xff00) | ((x<<8)&0xff0000) | (x<<24);}
-# endif
-
-# define le16_to_cpu(x) cpu_to_le16(x)
-# define le32_to_cpu(x) cpu_to_le32(x)
-# define be16_to_cpu(x) cpu_to_be16(x)
-# define be32_to_cpu(x) cpu_to_be32(x)
-
-# define cpu_to_le16p(addr) (cpu_to_le16(*(addr)))
-# define cpu_to_le32p(addr) (cpu_to_le32(*(addr)))
-# define cpu_to_be16p(addr) (cpu_to_be16(*(addr)))
-# define cpu_to_be32p(addr) (cpu_to_be32(*(addr)))
-
- extern inline void cpu_to_le16s(__u16 *a) {*a = cpu_to_le16(*a);}
- extern inline void cpu_to_le32s(__u16 *a) {*a = cpu_to_le32(*a);}
- extern inline void cpu_to_be16s(__u16 *a) {*a = cpu_to_be16(*a);}
- extern inline void cpu_to_be32s(__u16 *a) {*a = cpu_to_be32(*a);}
-
-# define le16_to_cpup(x) cpu_to_le16p(x)
-# define le32_to_cpup(x) cpu_to_le32p(x)
-# define be16_to_cpup(x) cpu_to_be16p(x)
-# define be32_to_cpup(x) cpu_to_be32p(x)
-
-# define le16_to_cpus(x) cpu_to_le16s(x)
-# define le32_to_cpus(x) cpu_to_le32s(x)
-# define be16_to_cpus(x) cpu_to_be16s(x)
-# define be32_to_cpus(x) cpu_to_be32s(x)
-
-#endif
-
-#ifdef LINUX_20
-# define __USE_OLD_REBUILD_HEADER__
-#endif
-
-/*
- * 2.0 didn't include sema_init, so we make our own - but only if it
- * looks like semaphore.h got included.
- */
-#ifdef LINUX_20
-# ifdef MUTEX_LOCKED /* Only if semaphore.h included */
- extern inline void sema_init (struct semaphore *sem, int val)
- {
- sem->count = val;
- sem->waking = sem->lock = 0;
- sem->wait = NULL;
- }
-# endif
-#endif /* LINUX_20 */
-
-/*
- * In 2.0, there is no real need for spinlocks, and they weren't really
- * implemented anyway.
- *
- * XXX the _irqsave variant should be defined eventually to do the
- * right thing.
- */
-#ifdef LINUX_20
-typedef int spinlock_t;
-# define spin_lock(lock)
-# define spin_unlock(lock)
-# define spin_lock_init(lock)
-
-# define spin_lock_irqsave(lock,flags) do { \
- save_flags(flags); cli(); } while (0);
-# define spin_unlock_irqrestore(lock,flags) restore_flags(flags);
-#endif
-
-/*
- * 2.1 stuffed the "flush" method into the middle of the file_operations
- * structure. The FOP_NO_FLUSH symbol is for drivers that do not implement
- * flush (most of them), it can be inserted in initializers for all 2.x
- * kernel versions.
- */
-#ifdef LINUX_20
-# define FOP_NO_FLUSH /* nothing */
-# define TAG_LLSEEK lseek
-# define TAG_POLL select
-#else
-# define FOP_NO_FLUSH NULL,
-# define TAG_LLSEEK llseek
-# define TAG_POLL poll
-#endif
-
-
-
-/*
- * fasync changed in 2.2.
- */
-#ifdef LINUX_20
-/* typedef struct inode *fasync_file; */
-# define fasync_file struct inode *
-#else
- typedef int fasync_file;
-#endif
-
-/* kill_fasync had less arguments, and a different indirection in the first */
-#ifndef LINUX_24
-# define kill_fasync(ptrptr,sig,band) kill_fasync(*(ptrptr),(sig))
-#endif
-
-/* other things that are virtualized: define the new functions for the old k */
-#ifdef LINUX_20
-# define in_interrupt() (intr_count!=0)
-# define mdelay(x) udelay((x)*1000)
-# define signal_pending(current) ((current)->signal & ~(current)->blocked)
-#endif
-
-#ifdef LINUX_PCI_H /* only if PCI stuff is being used */
-# ifdef LINUX_20
-# include "pci-compat.h" /* a whole set of replacement functions */
-# else
-# define pci_release_device(d) /* placeholder, used in 2.0 to free stuff */
-# endif
-#endif
-
-
-
-/*
- * Some task state stuff
- */
-
-#ifndef set_current_state
-# define set_current_state(s) current->state = (s);
-#endif
-
-#ifdef LINUX_20
-extern inline void schedule_timeout(int timeout)
-{
- current->timeout = jiffies + timeout;
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- current->timeout = 0;
-}
-
-extern inline long sleep_on_timeout(wait_queue_head_t *q, signed long timeout)
-{
- signed long early = 0;
-
- current->timeout = jiffies + timeout;
- sleep_on (q);
- if (current->timeout > 0) {
- early = current->timeout - jiffies;
- current->timeout = 0;
- }
- return early;
-}
-
-
-extern inline long interruptible_sleep_on_timeout(wait_queue_head_t *q,
- signed long timeout)
-{
- signed long early = 0;
-
- current->timeout = jiffies + timeout;
- interruptible_sleep_on (q);
- if (current->timeout > 0) {
- early = current->timeout - jiffies;
- current->timeout = 0;
- }
- return early;
-}
-
-#endif /* LINUX_20 */
-
-/*
- * Schedule_task was a late 2.4 addition.
- */
-#ifndef LINUX_24
-extern inline int schedule_task(struct tq_struct *task)
-{
- queue_task(task, &tq_scheduler);
- return 1;
-}
-#endif
-
-
-/*
- * Timing issues
- */
-#ifdef LINUX_20
-# define get_fast_time do_gettimeofday
-#endif
-
-#ifdef _LINUX_DELAY_H /* only if linux/delay.h is included */
-# ifndef mdelay /* linux-2.0 */
-# ifndef MAX_UDELAY_MS
-# define MAX_UDELAY_MS 5
-# endif
-# define mdelay(n) (\
- (__builtin_constant_p(n) && (n)<=MAX_UDELAY_MS) ? udelay((n)*1000) : \
- ({unsigned long msec=(n); while (msec--) udelay(1000);}))
-# endif /* mdelay */
-#endif /* _LINUX_DELAY_H */
-
-
-/*
- * No del_timer_sync before 2.4
- */
-#ifndef LINUX_24
-# define del_timer_sync(timer) del_timer(timer) /* and hope */
-#endif
-
-/*
- * mod_timer wasn't present in 2.0
- */
-#ifdef LINUX_20
-static inline int mod_timer(struct timer_list *timer, unsigned long expires)
-{
- int pending = del_timer(timer);
- if (pending) {
- timer->expires = expires;
- add_timer(timer);
- }
- return pending;
-}
-#endif
-/*
- * Various changes in mmap and friends.
- */
-
-#ifndef NOPAGE_SIGBUS
-# define NOPAGE_SIGBUS NULL /* return value of the nopage memory method */
-# define NOPAGE_OOM NULL /* No real equivalent in older kernels */
-#endif
-
-#ifndef VM_RESERVED /* Added 2.4.0-test10 */
-# define VM_RESERVED 0
-#endif
-
-#ifdef LINUX_24 /* use "vm_pgoff" to get an offset */
-#define VMA_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
-#else /* use "vm_offset" */
-#define VMA_OFFSET(vma) ((vma)->vm_offset)
-#endif
-
-#ifdef MAP_NR
-#define virt_to_page(page) (mem_map + MAP_NR(page))
-#endif
-
-#ifndef get_page
-# define get_page(p) atomic_inc(&(p)->count)
-#endif
-
-/*
- * No DMA lock in 2.0.
- */
-#ifdef LINUX_20
-static inline unsigned long claim_dma_lock(void)
-{
- unsigned long flags;
- save_flags(flags);
- cli();
- return flags;
-}
-
-static inline void release_dma_lock(unsigned long flags)
-{
- restore_flags(flags);
-}
-#endif
-
-
-/*
- * I/O memory was not managed by ealier kernels, define them as success
- */
-
-#if 0 /* FIXME: what is the right way to do request_mem_region? */
-#ifndef LINUX_24
-# define check_mem_region(start, len) 0
-# define request_mem_region(start, len, name) 0
-# define release_mem_region(start, len) 0
-
- /*
- * Also, request_ and release_ region used to return void. Return 0 instead
- */
-# define request_region(s, l, n) ({request_region((s),(l),(n));0;})
-# define release_region(s, l) ({release_region((s),(l));0;})
-
-#endif /* not LINUX_24 */
-#endif
-
-/*
- * Block layer stuff.
- */
-#ifndef LINUX_24
-
-/* BLK_DEFAULT_QUEUE for use with these macros only!!!! */
-#define BLK_DEFAULT_QUEUE(major) blk_dev[(major)].request_fn
-#define blk_init_queue(where,request_fn) where = request_fn;
-#define blk_cleanup_queue(where) where = NULL;
-
-/* No QUEUE_EMPTY in older kernels */
-#ifndef QUEUE_EMPTY /* Driver can redefine it too */
-# define QUEUE_EMPTY (CURRENT != NULL)
-#endif
-
-#ifdef RO_IOCTLS
-static inline int blk_ioctl(kdev_t dev, unsigned int cmd, unsigned long arg)
-{
- int err;
-
- switch (cmd) {
- case BLKRAGET: /* return the readahead value */
- if (!arg) return -EINVAL;
- err = ! access_ok(VERIFY_WRITE, arg, sizeof(long));
- if (err) return -EFAULT;
- PUT_USER(read_ahead[MAJOR(dev)],(long *) arg);
- return 0;
-
- case BLKRASET: /* set the readahead value */
- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
- if (arg > 0xff) return -EINVAL; /* limit it */
- read_ahead[MAJOR(dev)] = arg;
- return 0;
-
- case BLKFLSBUF: /* flush */
- if (! capable(CAP_SYS_ADMIN)) return -EACCES; /* only root */
- fsync_dev(dev);
- invalidate_buffers(dev);
- return 0;
-
- RO_IOCTLS(dev, arg);
- }
- return -ENOTTY;
-}
-#endif /* RO_IOCTLS */
-
-#ifdef LINUX_EXTENDED_PARTITION /* defined in genhd.h */
-static inline void register_disk(struct gendisk *gdev, kdev_t dev,
- unsigned minors, struct file_operations *ops, long size)
-{
- if (! gdev)
- return;
- resetup_one_dev(gdev, MINOR(dev) >> gdev->minor_shift);
-}
-#endif /* LINUX_EXTENDED_PARTITION */
-
-
-#else /* it is Linux 2.4 */
-#define HAVE_BLKPG_H
-#endif /* LINUX_24 */
-
-
-
-#ifdef LINUX_20 /* physical and virtual addresses had the same value */
-# define __pa(a) (a)
-# define __va(a) (a)
-#endif
-
-/*
- * Network driver compatibility
- */
-
-/*
- * 2.0 dev_kfree_skb had an extra arg. The following is a little dangerous
- * in that it assumes that FREE_WRITE is always wanted. Very few 2.0 drivers
- * use FREE_READ, but the number is *not* zero...
- *
- * Also: implement the non-checking versions of a couple skb functions -
- * but they still check in 2.0.
- */
-#ifdef LINUX_20
-# define dev_kfree_skb(skb) dev_kfree_skb((skb), FREE_WRITE);
-
-# define __skb_push(skb, len) skb_push((skb), (len))
-# define __skb_put(skb, len) skb_put((skb), (len))
-#endif
-
-/*
- * Softnet changes in 2.4
- */
-#ifndef LINUX_24
-# ifdef _LINUX_NETDEVICE_H /* only if netdevice.h was included */
-# define netif_start_queue(dev) clear_bit(0, (void *) &(dev)->tbusy);
-# define netif_stop_queue(dev) set_bit(0, (void *) &(dev)->tbusy);
-
-static inline void netif_wake_queue(struct device *dev)
-{
- clear_bit(0, (void *) &(dev)->tbusy);
- mark_bh(NET_BH);
-}
-
-/* struct device became struct net_device */
-# define net_device device
-# endif /* netdevice.h */
-#endif /* ! LINUX_24 */
-
-/*
- * Memory barrier stuff, define what's missing from older kernel versions
- */
-#ifdef switch_to /* this is always a macro, defined in <asm/sysstem.h> */
-
-# ifndef set_mb
-# define set_mb(var, value) do {(var) = (value); mb();} while 0
-# endif
-# ifndef set_rmb
-# define set_rmb(var, value) do {(var) = (value); rmb();} while 0
-# endif
-# ifndef set_wmb
-# define set_wmb(var, value) do {(var) = (value); wmb();} while 0
-# endif
-
-/* The hw barriers are defined as sw barriers. A correct thing if this
- specific kernel/platform is supported but has no specific instruction */
-# ifndef mb
-# define mb barrier
-# endif
-# ifndef rmb
-# define rmb barrier
-# endif
-# ifndef wmb
-# define wmb barrier
-# endif
-
-#endif /* switch to (i.e. <asm/system.h>) */
-
-
-#endif /* _SYSDEP_H_ */
projects / platform / kernel / kernel-mfld-blackbay.git / commitdiff