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ACPICA: Allow for supressing leading zeros when using acpi_ex_convert_to_ascii()

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ACPICA commit 792a337104ce2c1729d33d76241b42b3214aa60f

Allow to specifiy wether leading zeros should be supressed
ot not when using acpi_ex_convert_to_ascii().

Link: https://github.com/acpica/acpica/commit/792a3371
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Armin Wolf
2023-10-27 23:54:21 +02:00
committed by Rafael J. Wysocki
parent e6169a8ffe
commit 76a09d941c
1 changed files with 16 additions and 6 deletions
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drivers/acpi/acpica/exconvrt.c
+16 -6
View File
@@ -17,7 +17,8 @@ ACPI_MODULE_NAME("exconvrt")
/* Local prototypes */
static u32
acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length);
acpi_ex_convert_to_ascii(u64 integer,
u16 base, u8 *string, u8 max_length, u8 leading_zeros);
/*******************************************************************************
*
@@ -249,6 +250,7 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
* base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
* string - Where the string is returned
* data_width - Size of data item to be converted, in bytes
* leading_zeros - Allow leading zeros
*
* RETURN: Actual string length
*
@@ -257,7 +259,8 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
******************************************************************************/
static u32
acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
acpi_ex_convert_to_ascii(u64 integer,
u16 base, u8 *string, u8 data_width, u8 leading_zeros)
{
u64 digit;
u32 i;
@@ -266,7 +269,7 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
u32 hex_length;
u32 decimal_length;
u32 remainder;
u8 supress_zeros;
u8 supress_zeros = !leading_zeros;
ACPI_FUNCTION_ENTRY();
@@ -293,7 +296,6 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
break;
}
supress_zeros = TRUE; /* No leading zeros */
remainder = 0;
for (i = decimal_length; i > 0; i--) {
@@ -379,6 +381,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
u32 string_length = 0;
u16 base = 16;
u8 separator = ',';
u8 leading_zeros;
ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc);
@@ -400,6 +403,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
* Make room for the maximum decimal number size
*/
string_length = ACPI_MAX_DECIMAL_DIGITS;
leading_zeros = FALSE;
base = 10;
break;
@@ -408,6 +412,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
/* Two hex string characters for each integer byte */
string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width);
leading_zeros = TRUE;
break;
}
@@ -428,7 +433,8 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
string_length =
acpi_ex_convert_to_ascii(obj_desc->integer.value, base,
new_buf,
acpi_gbl_integer_byte_width);
acpi_gbl_integer_byte_width,
leading_zeros);
/* Null terminate at the correct place */
@@ -448,6 +454,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
* From ACPI: "If the input is a buffer, it is converted to a
* a string of decimal values separated by commas."
*/
leading_zeros = FALSE;
base = 10;
/*
@@ -475,6 +482,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
*
* Each hex number is prefixed with 0x (11/2018)
*/
leading_zeros = TRUE;
separator = ' ';
string_length = (obj_desc->buffer.length * 5);
break;
@@ -488,6 +496,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
*
* Each hex number is prefixed with 0x (11/2018)
*/
leading_zeros = TRUE;
separator = ',';
string_length = (obj_desc->buffer.length * 5);
break;
@@ -528,7 +537,8 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
new_buf += acpi_ex_convert_to_ascii((u64) obj_desc->
buffer.pointer[i],
base, new_buf, 1);
base, new_buf, 1,
leading_zeros);
/* Each digit is separated by either a comma or space */