1 files changed, 317 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/dbgdrv/main.c b/drivers/gpu/pvr/dbgdrv/main.c
new file mode 100644
index 0000000..6556249
--- /dev/null
+++ b/drivers/gpu/pvr/dbgdrv/main.c
@@ -0,0 +1,317 @@
+/**********************************************************************
+ *
+ * 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"
+#include "pvr_uaccess.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(pvr_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(pvr_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