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/**********************************************************************
*
* Copyright (C) Imagination Technologies Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful but, except
* as otherwise stated in writing, 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
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* Imagination Technologies Ltd. <gpl-support@imgtec.com>
* Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
*
******************************************************************************/
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
#include <linux/version.h>
#if defined(LDM_PLATFORM) && !defined(SUPPORT_DRI_DRM)
#include <linux/platform_device.h>
#endif
#if defined(LDM_PCI) && !defined(SUPPORT_DRI_DRM)
#include <linux/pci.h>
#endif
#include <asm/uaccess.h>
#if defined(SUPPORT_DRI_DRM)
#include "drmP.h"
#include "drm.h"
#endif
#include "img_types.h"
#include "linuxsrv.h"
#include "dbgdriv_ioctl.h"
#include "dbgdrvif.h"
#include "dbgdriv.h"
#include "hostfunc.h"
#include "hotkey.h"
#include "pvr_debug.h"
#include "pvrmodule.h"
#if defined(SUPPORT_DRI_DRM)
#include "pvr_drm_shared.h"
#include "pvr_drm.h"
#else
#define DRVNAME "dbgdrv"
MODULE_SUPPORTED_DEVICE(DRVNAME);
#if (defined(LDM_PLATFORM) || defined(LDM_PCI)) && !defined(SUPPORT_DRI_DRM)
static struct class *psDbgDrvClass;
#endif
static int AssignedMajorNumber = 0;
long dbgdrv_ioctl(struct file *, unsigned int, unsigned long);
static int dbgdrv_open(struct inode unref__ * pInode, struct file unref__ * pFile)
{
return 0;
}
static int dbgdrv_release(struct inode unref__ * pInode, struct file unref__ * pFile)
{
return 0;
}
static int dbgdrv_mmap(struct file* pFile, struct vm_area_struct* ps_vma)
{
return 0;
}
static struct file_operations dbgdrv_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = dbgdrv_ioctl,
.open = dbgdrv_open,
.release = dbgdrv_release,
.mmap = dbgdrv_mmap,
};
#endif
IMG_VOID DBGDrvGetServiceTable(IMG_VOID **fn_table);
IMG_VOID DBGDrvGetServiceTable(IMG_VOID **fn_table)
{
extern DBGKM_SERVICE_TABLE g_sDBGKMServices;
*fn_table = &g_sDBGKMServices;
}
#if defined(SUPPORT_DRI_DRM)
void dbgdrv_cleanup(void)
#else
static void __exit dbgdrv_cleanup(void)
#endif
{
#if !defined(SUPPORT_DRI_DRM)
#if defined(LDM_PLATFORM) || defined(LDM_PCI)
device_destroy(psDbgDrvClass, MKDEV(AssignedMajorNumber, 0));
class_destroy(psDbgDrvClass);
#endif
unregister_chrdev(AssignedMajorNumber, DRVNAME);
#endif
#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
HostDestroyEventObjects();
#endif
HostDestroyMutex(g_pvAPIMutex);
return;
}
#if defined(SUPPORT_DRI_DRM)
IMG_INT dbgdrv_init(void)
#else
static int __init dbgdrv_init(void)
#endif
{
#if (defined(LDM_PLATFORM) || defined(LDM_PCI)) && !defined(SUPPORT_DRI_DRM)
struct device *psDev;
#endif
#if !defined(SUPPORT_DRI_DRM)
int err = -EBUSY;
#endif
if ((g_pvAPIMutex=HostCreateMutex()) == IMG_NULL)
{
return -ENOMEM;
}
#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
(void) HostCreateEventObjects();
#endif
#if !defined(SUPPORT_DRI_DRM)
AssignedMajorNumber =
register_chrdev(AssignedMajorNumber, DRVNAME, &dbgdrv_fops);
if (AssignedMajorNumber <= 0)
{
PVR_DPF((PVR_DBG_ERROR," unable to get major\n"));
goto ErrDestroyEventObjects;
}
#if defined(LDM_PLATFORM) || defined(LDM_PCI)
psDbgDrvClass = class_create(THIS_MODULE, DRVNAME);
if (IS_ERR(psDbgDrvClass))
{
PVR_DPF((PVR_DBG_ERROR, "%s: unable to create class (%ld)",
__func__, PTR_ERR(psDbgDrvClass)));
goto ErrUnregisterCharDev;
}
psDev = device_create(psDbgDrvClass, NULL, MKDEV(AssignedMajorNumber, 0),
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26))
NULL,
#endif
DRVNAME);
if (IS_ERR(psDev))
{
PVR_DPF((PVR_DBG_ERROR, "%s: unable to create device (%ld)",
__func__, PTR_ERR(psDev)));
goto ErrDestroyClass;
}
#endif
#endif
return 0;
#if !defined(SUPPORT_DRI_DRM)
ErrDestroyEventObjects:
#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
HostDestroyEventObjects();
#endif
#if defined(LDM_PLATFORM) || defined(LDM_PCI)
ErrUnregisterCharDev:
unregister_chrdev(AssignedMajorNumber, DRVNAME);
ErrDestroyClass:
class_destroy(psDbgDrvClass);
#endif
return err;
#endif
}
#if defined(SUPPORT_DRI_DRM)
int dbgdrv_ioctl(struct drm_device *dev, IMG_VOID *arg, struct drm_file *pFile)
#else
long dbgdrv_ioctl(struct file *file, unsigned int ioctlCmd, unsigned long arg)
#endif
{
IOCTL_PACKAGE *pIP = (IOCTL_PACKAGE *) arg;
char *buffer, *in, *out;
unsigned int cmd;
if((pIP->ui32InBufferSize > (PAGE_SIZE >> 1) ) || (pIP->ui32OutBufferSize > (PAGE_SIZE >> 1)))
{
PVR_DPF((PVR_DBG_ERROR,"Sizes of the buffers are too large, cannot do ioctl\n"));
return -1;
}
buffer = (char *) HostPageablePageAlloc(1);
if(!buffer)
{
PVR_DPF((PVR_DBG_ERROR,"Failed to allocate buffer, cannot do ioctl\n"));
return -EFAULT;
}
in = buffer;
out = buffer + (PAGE_SIZE >>1);
if (copy_from_user(in, pIP->pInBuffer, pIP->ui32InBufferSize) != 0)
{
goto init_failed;
}
cmd = MAKEIOCTLINDEX(pIP->ui32Cmd) - DEBUG_SERVICE_IOCTL_BASE - 1;
if(pIP->ui32Cmd == DEBUG_SERVICE_READ)
{
IMG_UINT32 *pui32BytesCopied = (IMG_UINT32 *)out;
DBG_IN_READ *psReadInParams = (DBG_IN_READ *)in;
DBG_STREAM *psStream;
IMG_CHAR *ui8Tmp;
ui8Tmp = vmalloc(psReadInParams->ui32OutBufferSize);
if(!ui8Tmp)
{
goto init_failed;
}
psStream = SID2PStream(psReadInParams->hStream);
if(!psStream)
{
goto init_failed;
}
*pui32BytesCopied = ExtDBGDrivRead(psStream,
psReadInParams->bReadInitBuffer,
psReadInParams->ui32OutBufferSize,
ui8Tmp);
if (copy_to_user(psReadInParams->u.pui8OutBuffer,
ui8Tmp,
*pui32BytesCopied) != 0)
{
vfree(ui8Tmp);
goto init_failed;
}
vfree(ui8Tmp);
}
else
{
(g_DBGDrivProc[cmd])(in, out);
}
if(copy_to_user(pIP->pOutBuffer, out, pIP->ui32OutBufferSize) != 0)
{
goto init_failed;
}
HostPageablePageFree((IMG_VOID *)buffer);
return 0;
init_failed:
HostPageablePageFree((IMG_VOID *)buffer);
return -EFAULT;
}
IMG_VOID RemoveHotKey (IMG_UINT32 hHotKey)
{
PVR_UNREFERENCED_PARAMETER(hHotKey);
}
IMG_VOID DefineHotKey (IMG_UINT32 ui32ScanCode, IMG_UINT32 ui32ShiftState, PHOTKEYINFO psInfo)
{
PVR_UNREFERENCED_PARAMETER(ui32ScanCode);
PVR_UNREFERENCED_PARAMETER(ui32ShiftState);
PVR_UNREFERENCED_PARAMETER(psInfo);
}
EXPORT_SYMBOL(DBGDrvGetServiceTable);
#if !defined(SUPPORT_DRI_DRM)
subsys_initcall(dbgdrv_init);
module_exit(dbgdrv_cleanup);
#endif
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