Maemo patchset 20101501+0m5

[h-e-n] / drivers / gpu / pvr / pvr_debug.c

diff --git a/drivers/gpu/pvr/pvr_debug.c b/drivers/gpu/pvr/pvr_debug.c
new file mode 100644 (file)
index 0000000..b3e9bac
--- /dev/null
+++ b/drivers/gpu/pvr/pvr_debug.c
@@ -0,0 +1,184 @@
+/**********************************************************************
+ *
+ * Copyright(c) 2008 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
+ *
+ ******************************************************************************/
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <stdarg.h>
+#include "img_types.h"
+#include "pvr_debug.h"
+#include "proc.h"
+
+#if defined(DEBUG) || defined(TIMING)
+
+u32 gPVRDebugLevel = DBGPRIV_WARNING;
+
+#define PVR_STRING_TERMINATOR          '\0'
+#define PVR_IS_FILE_SEPARATOR(character) \
+       (((character) == '\\') || ((character) == '/'))
+
+void PVRSRVDebugPrintf(u32 ui32DebugLevel,
+                      const char *pszFileName,
+                      u32 ui32Line, const char *pszFormat, ...
+    )
+{
+       IMG_BOOL bTrace, bDebug;
+       char *pszLeafName;
+
+       pszLeafName = (char *)strrchr(pszFileName, '\\');
+
+       if (pszLeafName)
+               pszFileName = pszLeafName;
+
+       bTrace = gPVRDebugLevel & ui32DebugLevel & DBGPRIV_CALLTRACE;
+       bDebug = ((gPVRDebugLevel & DBGPRIV_ALLLEVELS) >= ui32DebugLevel);
+
+       if (bTrace || bDebug) {
+               va_list vaArgs;
+               static char szBuffer[256];
+
+               va_start(vaArgs, pszFormat);
+
+               if (bDebug) {
+                       switch (ui32DebugLevel) {
+                       case DBGPRIV_FATAL:
+                               {
+                                       strcpy(szBuffer, "PVR_K:(Fatal): ");
+                                       break;
+                               }
+                       case DBGPRIV_ERROR:
+                               {
+                                       strcpy(szBuffer, "PVR_K:(Error): ");
+                                       break;
+                               }
+                       case DBGPRIV_WARNING:
+                               {
+                                       strcpy(szBuffer, "PVR_K:(Warning): ");
+                                       break;
+                               }
+                       case DBGPRIV_MESSAGE:
+                               {
+                                       strcpy(szBuffer, "PVR_K:(Message): ");
+                                       break;
+                               }
+                       case DBGPRIV_VERBOSE:
+                               {
+                                       strcpy(szBuffer, "PVR_K:(Verbose): ");
+                                       break;
+                               }
+                       default:
+                               {
+                                       strcpy(szBuffer,
+                                              "PVR_K:(Unknown message level)");
+                                       break;
+                               }
+                       }
+               } else {
+                       strcpy(szBuffer, "PVR_K: ");
+               }
+
+               vsprintf(&szBuffer[strlen(szBuffer)], pszFormat, vaArgs);
+
+               if (!bTrace)
+                       sprintf(&szBuffer[strlen(szBuffer)], " [%d, %s]",
+                               (int)ui32Line, pszFileName);
+
+               printk(KERN_INFO "%s\n", szBuffer);
+
+               va_end(vaArgs);
+       }
+}
+
+void PVRSRVDebugAssertFail(const char *pszFile, u32 uLine)
+{
+       PVRSRVDebugPrintf(DBGPRIV_FATAL, pszFile, uLine,
+                         "Debug assertion failed!");
+       BUG();
+}
+
+void PVRSRVTrace(const char *pszFormat, ...)
+{
+       static char szMessage[PVR_MAX_DEBUG_MESSAGE_LEN + 1];
+       char *pszEndOfMessage = NULL;
+       va_list ArgList;
+
+       strncpy(szMessage, "PVR: ", PVR_MAX_DEBUG_MESSAGE_LEN);
+
+       pszEndOfMessage = &szMessage[strlen(szMessage)];
+
+       va_start(ArgList, pszFormat);
+       vsprintf(pszEndOfMessage, pszFormat, ArgList);
+       va_end(ArgList);
+
+       strcat(szMessage, "\n");
+
+       printk(KERN_INFO "%s", szMessage);
+}
+
+void PVRDebugSetLevel(u32 uDebugLevel)
+{
+       printk(KERN_INFO "PVR: Setting Debug Level = 0x%x\n",
+              (unsigned int)uDebugLevel);
+
+       gPVRDebugLevel = uDebugLevel;
+}
+
+int PVRDebugProcSetLevel(struct file *file, const char __user *buffer,
+                        unsigned long count, void *data)
+{
+#define        _PROC_SET_BUFFER_SZ             2
+       char data_buffer[_PROC_SET_BUFFER_SZ];
+
+       if (count != _PROC_SET_BUFFER_SZ) {
+               return -EINVAL;
+       } else {
+               if (copy_from_user(data_buffer, buffer, count))
+                       return -EINVAL;
+               if (data_buffer[count - 1] != '\n')
+                       return -EINVAL;
+               PVRDebugSetLevel(data_buffer[0] - '0');
+       }
+       return count;
+}
+
+int PVRDebugProcGetLevel(char *page, char **start, off_t off, int count,
+                        int *eof, void *data)
+{
+       if (off == 0) {
+               *start = (char *)1;
+               return printAppend(page, count, 0, "%u\n", gPVRDebugLevel);
+       }
+       *eof = 1;
+       return 0;
+}
+
+#endif