1 files changed, 624 insertions, 0 deletions

diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
new file mode 100644
index 000000000000..985c5d045b78
--- /dev/null
+++ b/drivers/acpi/utilities/utdebug.c
@@ -0,0 +1,624 @@
+/******************************************************************************
+ *
+ * Module Name: utdebug - Debug print routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <linux/module.h>
+
+#include <acpi/acpi.h>
+
+#define _COMPONENT          ACPI_UTILITIES
+         ACPI_MODULE_NAME    ("utdebug")
+
+
+#ifdef ACPI_DEBUG_OUTPUT
+
+static u32   acpi_gbl_prev_thread_id = 0xFFFFFFFF;
+static char     *acpi_gbl_fn_entry_str = "----Entry";
+static char     *acpi_gbl_fn_exit_str = "----Exit-";
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_init_stack_ptr_trace
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Save the current stack pointer
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_init_stack_ptr_trace (
+        void)
+{
+        u32                         current_sp;
+
+
+        acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF (&current_sp, NULL);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_track_stack_ptr
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Save the current stack pointer
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_track_stack_ptr (
+        void)
+{
+        acpi_size                   current_sp;
+
+
+        current_sp = ACPI_PTR_DIFF (&current_sp, NULL);
+
+        if (current_sp < acpi_gbl_lowest_stack_pointer) {
+                acpi_gbl_lowest_stack_pointer = current_sp;
+        }
+
+        if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
+                acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
+        }
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_debug_print
+ *
+ * PARAMETERS:  debug_level         - Requested debug print level
+ *              proc_name           - Caller's procedure name
+ *              module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              component_id        - Caller's component ID (for error output)
+ *
+ *              Format              - Printf format field
+ *              ...                 - Optional printf arguments
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print error message with prefix consisting of the module name,
+ *              line number, and component ID.
+ *
+ ****************************************************************************/
+
+void  ACPI_INTERNAL_VAR_XFACE
+acpi_ut_debug_print (
+        u32                             requested_debug_level,
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        char                            *format,
+        ...)
+{
+        u32                             thread_id;
+        va_list                 args;
+
+
+        /*
+         * Stay silent if the debug level or component ID is disabled
+         */
+        if (!(requested_debug_level & acpi_dbg_level) ||
+                !(dbg_info->component_id & acpi_dbg_layer)) {
+                return;
+        }
+
+        /*
+         * Thread tracking and context switch notification
+         */
+        thread_id = acpi_os_get_thread_id ();
+
+        if (thread_id != acpi_gbl_prev_thread_id) {
+                if (ACPI_LV_THREADS & acpi_dbg_level) {
+                        acpi_os_printf ("\n**** Context Switch from TID %X to TID %X ****\n\n",
+                                acpi_gbl_prev_thread_id, thread_id);
+                }
+
+                acpi_gbl_prev_thread_id = thread_id;
+        }
+
+        /*
+         * Display the module name, current line number, thread ID (if requested),
+         * current procedure nesting level, and the current procedure name
+         */
+        acpi_os_printf ("%8s-%04ld ", dbg_info->module_name, line_number);
+
+        if (ACPI_LV_THREADS & acpi_dbg_level) {
+                acpi_os_printf ("[%04lX] ", thread_id);
+        }
+
+        acpi_os_printf ("[%02ld] %-22.22s: ", acpi_gbl_nesting_level, dbg_info->proc_name);
+
+        va_start (args, format);
+        acpi_os_vprintf (format, args);
+}
+EXPORT_SYMBOL(acpi_ut_debug_print);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_debug_print_raw
+ *
+ * PARAMETERS:  requested_debug_level - Requested debug print level
+ *              line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Format              - Printf format field
+ *              ...                 - Optional printf arguments
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print message with no headers.  Has same interface as
+ *              debug_print so that the same macros can be used.
+ *
+ ****************************************************************************/
+
+void  ACPI_INTERNAL_VAR_XFACE
+acpi_ut_debug_print_raw (
+        u32                             requested_debug_level,
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        char                            *format,
+        ...)
+{
+        va_list                 args;
+
+
+        if (!(requested_debug_level & acpi_dbg_level) ||
+                !(dbg_info->component_id & acpi_dbg_layer)) {
+                return;
+        }
+
+        va_start (args, format);
+        acpi_os_vprintf (format, args);
+}
+EXPORT_SYMBOL(acpi_ut_debug_print_raw);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_trace
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_trace (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info)
+{
+
+        acpi_gbl_nesting_level++;
+        acpi_ut_track_stack_ptr ();
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s\n", acpi_gbl_fn_entry_str);
+}
+EXPORT_SYMBOL(acpi_ut_trace);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_trace_ptr
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Pointer             - Pointer to display
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_trace_ptr (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        void                            *pointer)
+{
+        acpi_gbl_nesting_level++;
+        acpi_ut_track_stack_ptr ();
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s %p\n", acpi_gbl_fn_entry_str, pointer);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_trace_str
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              String              - Additional string to display
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_trace_str (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        char                            *string)
+{
+
+        acpi_gbl_nesting_level++;
+        acpi_ut_track_stack_ptr ();
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s %s\n", acpi_gbl_fn_entry_str, string);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_trace_u32
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Integer             - Integer to display
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_trace_u32 (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        u32                             integer)
+{
+
+        acpi_gbl_nesting_level++;
+        acpi_ut_track_stack_ptr ();
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s %08X\n", acpi_gbl_fn_entry_str, integer);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_exit
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_exit (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info)
+{
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s\n", acpi_gbl_fn_exit_str);
+
+        acpi_gbl_nesting_level--;
+}
+EXPORT_SYMBOL(acpi_ut_exit);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_status_exit
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Status              - Exit status code
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level. Prints exit status also.
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_status_exit (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        acpi_status                     status)
+{
+
+        if (ACPI_SUCCESS (status)) {
+                acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                                "%s %s\n", acpi_gbl_fn_exit_str,
+                                acpi_format_exception (status));
+        }
+        else {
+                acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                                "%s ****Exception****: %s\n", acpi_gbl_fn_exit_str,
+                                acpi_format_exception (status));
+        }
+
+        acpi_gbl_nesting_level--;
+}
+EXPORT_SYMBOL(acpi_ut_status_exit);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_value_exit
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Value               - Value to be printed with exit msg
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level. Prints exit value also.
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_value_exit (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        acpi_integer                    value)
+{
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
+                        ACPI_FORMAT_UINT64 (value));
+
+        acpi_gbl_nesting_level--;
+}
+EXPORT_SYMBOL(acpi_ut_value_exit);
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_ptr_exit
+ *
+ * PARAMETERS:  line_number         - Caller's line number
+ *              dbg_info            - Contains:
+ *                  proc_name           - Caller's procedure name
+ *                  module_name         - Caller's module name
+ *                  component_id        - Caller's component ID
+ *              Value               - Value to be printed with exit msg
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
+ *              set in debug_level. Prints exit value also.
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_ptr_exit (
+        u32                             line_number,
+        struct acpi_debug_print_info    *dbg_info,
+        u8                              *ptr)
+{
+
+        acpi_ut_debug_print (ACPI_LV_FUNCTIONS, line_number, dbg_info,
+                        "%s %p\n", acpi_gbl_fn_exit_str, ptr);
+
+        acpi_gbl_nesting_level--;
+}
+
+#endif
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ut_dump_buffer
+ *
+ * PARAMETERS:  Buffer              - Buffer to dump
+ *              Count               - Amount to dump, in bytes
+ *              Display             - BYTE, WORD, DWORD, or QWORD display
+ *              component_iD        - Caller's component ID
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Generic dump buffer in both hex and ascii.
+ *
+ ****************************************************************************/
+
+void
+acpi_ut_dump_buffer (
+        u8                              *buffer,
+        u32                             count,
+        u32                             display,
+        u32                             component_id)
+{
+        acpi_native_uint                i = 0;
+        acpi_native_uint                j;
+        u32                             temp32;
+        u8                              buf_char;
+
+
+        /* Only dump the buffer if tracing is enabled */
+
+        if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
+                (component_id & acpi_dbg_layer))) {
+                return;
+        }
+
+        if ((count < 4) || (count & 0x01)) {
+                display = DB_BYTE_DISPLAY;
+        }
+
+        acpi_os_printf ("\nOffset Value\n");
+
+        /*
+         * Nasty little dump buffer routine!
+         */
+        while (i < count) {
+                /* Print current offset */
+
+                acpi_os_printf ("%05X  ", (u32) i);
+
+                /* Print 16 hex chars */
+
+                for (j = 0; j < 16;) {
+                        if (i + j >= count) {
+                                acpi_os_printf ("\n");
+                                return;
+                        }
+
+                        /* Make sure that the s8 doesn't get sign-extended! */
+
+                        switch (display) {
+                        /* Default is BYTE display */
+
+                        default:
+
+                                acpi_os_printf ("%02X ",
+                                                *((u8 *) &buffer[i + j]));
+                                j += 1;
+                                break;
+
+
+                        case DB_WORD_DISPLAY:
+
+                                ACPI_MOVE_16_TO_32 (&temp32, &buffer[i + j]);
+                                acpi_os_printf ("%04X ", temp32);
+                                j += 2;
+                                break;
+
+
+                        case DB_DWORD_DISPLAY:
+
+                                ACPI_MOVE_32_TO_32 (&temp32, &buffer[i + j]);
+                                acpi_os_printf ("%08X ", temp32);
+                                j += 4;
+                                break;
+
+
+                        case DB_QWORD_DISPLAY:
+
+                                ACPI_MOVE_32_TO_32 (&temp32, &buffer[i + j]);
+                                acpi_os_printf ("%08X", temp32);
+
+                                ACPI_MOVE_32_TO_32 (&temp32, &buffer[i + j + 4]);
+                                acpi_os_printf ("%08X ", temp32);
+                                j += 8;
+                                break;
+                        }
+                }
+
+                /*
+                 * Print the ASCII equivalent characters
+                 * But watch out for the bad unprintable ones...
+                 */
+                for (j = 0; j < 16; j++) {
+                        if (i + j >= count) {
+                                acpi_os_printf ("\n");
+                                return;
+                        }
+
+                        buf_char = buffer[i + j];
+                        if ((buf_char > 0x1F && buf_char < 0x2E) ||
+                                (buf_char > 0x2F && buf_char < 0x61) ||
+                                (buf_char > 0x60 && buf_char < 0x7F)) {
+                                acpi_os_printf ("%c", buf_char);
+                        }
+                        else {
+                                acpi_os_printf (".");
+                        }
+                }
+
+                /* Done with that line. */
+
+                acpi_os_printf ("\n");
+                i += 16;
+        }
+
+        return;
+}
+