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Add Linux 2.2.x support for stubs

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Rik Faith 2001-02-21 16:06:10 +00:00
parent 48768df6c3
commit c4a247d262
4 changed files with 65 additions and 6 deletions
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13
linux-core/drm_stub.c
View File

@ -31,6 +31,10 @@
#define __NO_VERSION__
#include "drmP.h"
#if LINUX_VERSION_CODE < 0x020400
#include "stubsupport-pre24.h"
#endif
#define DRM_STUB_MAXCARDS 16 /* Enough for one machine */
static struct drm_stub_list {
@ -120,10 +124,13 @@ static int DRM(stub_putminor)(int minor)
int DRM(stub_register)(const char *name, struct file_operations *fops,
drm_device_t *dev)
{
if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops))) {
/* Already registered */
struct drm_stub_info *i;
struct drm_stub_info *i = NULL;
if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops)))
i = (struct drm_stub_info *)inter_module_get("drm");
if (i) {
/* Already registered */
DRM(stub_info).info_register = i->info_register;
DRM(stub_info).info_unregister = i->info_unregister;
} else {

1
linux/compat-pre24.h
View File

@ -45,6 +45,7 @@
/* This is a hack that only works for
this code base -- because we always
call this with dev->tq.* */
#undef INIT_LIST_HEAD
#define INIT_LIST_HEAD(pointer) dev->tq.next = NULL
#endif

13
linux/drm_stub.h
View File

@ -31,6 +31,10 @@
#define __NO_VERSION__
#include "drmP.h"
#if LINUX_VERSION_CODE < 0x020400
#include "stubsupport-pre24.h"
#endif
#define DRM_STUB_MAXCARDS 16 /* Enough for one machine */
static struct drm_stub_list {
@ -120,10 +124,13 @@ static int DRM(stub_putminor)(int minor)
int DRM(stub_register)(const char *name, struct file_operations *fops,
drm_device_t *dev)
{
if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops))) {
/* Already registered */
struct drm_stub_info *i;
struct drm_stub_info *i = NULL;
if (register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops)))
i = (struct drm_stub_info *)inter_module_get("drm");
if (i) {
/* Already registered */
DRM(stub_info).info_register = i->info_register;
DRM(stub_info).info_unregister = i->info_unregister;
} else {

44
linux/stubsupport-pre24.h Normal file
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@ -0,0 +1,44 @@
/* stubsupport.h -- -*- linux-c -*-
* Created: Fri Jan 19 10:48:35 2001 by faith@acm.org
*
* Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Rickard E. (Rik) Faith <faith@valinux.com>
*
*/
#ifndef _STUBSUPPORT_PRE24_H_
#define _STUBSUPPORT_PRE24_H_
struct drm_stub_info *DRM(_stub_pointer) = NULL;
#define inter_module_put(x)
#define inter_module_unregister(x)
#define inter_module_get(x) DRM(_stub_pointer)
#define inter_module_register(x,y,z) do { DRM(_stub_pointer) = z; } while (0)
/* This is a kludge for backward compatibility
that is only useful in DRM(stub_open) */
#define fops_put(fops) MOD_DEC_USE_COUNT
#define fops_get(fops) (fops); MOD_INC_USE_COUNT
#endif