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linux/drivers/acpi/acpica/utbuffer.c

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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
*
* Module Name: utbuffer - Buffer dump routines
*
* Copyright (C) 2000 - 2019, Intel Corp.
*
*****************************************************************************/
#include <acpi/acpi.h>
#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utbuffer")
/*******************************************************************************
*
* FUNCTION: acpi_ut_dump_buffer
*
* PARAMETERS: buffer - Buffer to dump
* count - Amount to dump, in bytes
* display - BYTE, WORD, DWORD, or QWORD display:
* DB_BYTE_DISPLAY
* DB_WORD_DISPLAY
* DB_DWORD_DISPLAY
* DB_QWORD_DISPLAY
* base_offset - Beginning buffer offset (display only)
*
* RETURN: None
*
* DESCRIPTION: Generic dump buffer in both hex and ascii.
*
******************************************************************************/
void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
{
u32 i = 0;
u32 j;
u32 temp32;
u8 buf_char;
if (!buffer) {
acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
return;
}
if ((count < 4) || (count & 0x01)) {
display = DB_BYTE_DISPLAY;
}
/* Nasty little dump buffer routine! */
while (i < count) {
/* Print current offset */
acpi_os_printf("%8.4X: ", (base_offset + i));
/* Print 16 hex chars */
for (j = 0; j < 16;) {
if (i + j >= count) {
/* Dump fill spaces */
acpi_os_printf("%*s", ((display * 2) + 1), " ");
j += display;
continue;
}
switch (display) {
case DB_BYTE_DISPLAY:
default: /* Default is BYTE display */
acpi_os_printf("%02X ",
buffer[(acpi_size)i + j]);
break;
case DB_WORD_DISPLAY:
ACPI_MOVE_16_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
acpi_os_printf("%04X ", temp32);
break;
case DB_DWORD_DISPLAY:
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
acpi_os_printf("%08X ", temp32);
break;
case DB_QWORD_DISPLAY:
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
acpi_os_printf("%08X", temp32);
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j +
4]);
acpi_os_printf("%08X ", temp32);
break;
}
j += display;
}
/*
* Print the ASCII equivalent characters but watch out for the bad
* unprintable ones (printable chars are 0x20 through 0x7E)
*/
acpi_os_printf(" ");
for (j = 0; j < 16; j++) {
if (i + j >= count) {
acpi_os_printf("\n");
return;
}
/*
* Add comment characters so rest of line is ignored when
* compiled
*/
if (j == 0) {
acpi_os_printf("// ");
}
buf_char = buffer[(acpi_size)i + j];
if (isprint(buf_char)) {
acpi_os_printf("%c", buf_char);
} else {
acpi_os_printf(".");
}
}
/* Done with that line. */
acpi_os_printf("\n");
i += 16;
}
return;
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_debug_dump_buffer
*
* PARAMETERS: buffer - Buffer to dump
* count - Amount to dump, in bytes
* display - BYTE, WORD, DWORD, or QWORD display:
* DB_BYTE_DISPLAY
* DB_WORD_DISPLAY
* DB_DWORD_DISPLAY
* DB_QWORD_DISPLAY
* component_ID - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Generic dump buffer in both hex and ascii.
*
******************************************************************************/
void
acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
{
/* Only dump the buffer if tracing is enabled */
if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
(component_id & acpi_dbg_layer))) {
return;
}
acpi_ut_dump_buffer(buffer, count, display, 0);
}
#ifdef ACPI_APPLICATION
/*******************************************************************************
*
* FUNCTION: acpi_ut_dump_buffer_to_file
*
* PARAMETERS: file - File descriptor
* buffer - Buffer to dump
* count - Amount to dump, in bytes
* display - BYTE, WORD, DWORD, or QWORD display:
* DB_BYTE_DISPLAY
* DB_WORD_DISPLAY
* DB_DWORD_DISPLAY
* DB_QWORD_DISPLAY
* base_offset - Beginning buffer offset (display only)
*
* RETURN: None
*
* DESCRIPTION: Generic dump buffer in both hex and ascii to a file.
*
******************************************************************************/
void
acpi_ut_dump_buffer_to_file(ACPI_FILE file,
u8 *buffer, u32 count, u32 display, u32 base_offset)
{
u32 i = 0;
u32 j;
u32 temp32;
u8 buf_char;
if (!buffer) {
fprintf(file, "Null Buffer Pointer in DumpBuffer!\n");
return;
}
if ((count < 4) || (count & 0x01)) {
display = DB_BYTE_DISPLAY;
}
/* Nasty little dump buffer routine! */
while (i < count) {
/* Print current offset */
fprintf(file, "%8.4X: ", (base_offset + i));
/* Print 16 hex chars */
for (j = 0; j < 16;) {
if (i + j >= count) {
/* Dump fill spaces */
fprintf(file, "%*s", ((display * 2) + 1), " ");
j += display;
continue;
}
switch (display) {
case DB_BYTE_DISPLAY:
default: /* Default is BYTE display */
fprintf(file, "%02X ",
buffer[(acpi_size)i + j]);
break;
case DB_WORD_DISPLAY:
ACPI_MOVE_16_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
fprintf(file, "%04X ", temp32);
break;
case DB_DWORD_DISPLAY:
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
fprintf(file, "%08X ", temp32);
break;
case DB_QWORD_DISPLAY:
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j]);
fprintf(file, "%08X", temp32);
ACPI_MOVE_32_TO_32(&temp32,
&buffer[(acpi_size)i + j +
4]);
fprintf(file, "%08X ", temp32);
break;
}
j += display;
}
/*
* Print the ASCII equivalent characters but watch out for the bad
* unprintable ones (printable chars are 0x20 through 0x7E)
*/
fprintf(file, " ");
for (j = 0; j < 16; j++) {
if (i + j >= count) {
fprintf(file, "\n");
return;
}
buf_char = buffer[(acpi_size)i + j];
if (isprint(buf_char)) {
fprintf(file, "%c", buf_char);
} else {
fprintf(file, ".");
}
}
/* Done with that line. */
fprintf(file, "\n");
i += 16;
}
return;
}
#endif
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