[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/acpi/acpica/utstrsuppt.c b/src/kernel/linux/v4.19/drivers/acpi/acpica/utstrsuppt.c
new file mode 100644
index 0000000..05ff200
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/acpi/acpica/utstrsuppt.c
@@ -0,0 +1,428 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: utstrsuppt - Support functions for string-to-integer conversion
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utstrsuppt")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_insert_digit(u64 *accumulated_value, u32 base, int ascii_digit);
+
+static acpi_status
+acpi_ut_strtoul_multiply64(u64 multiplicand, u32 base, u64 *out_product);
+
+static acpi_status acpi_ut_strtoul_add64(u64 addend1, u32 digit, u64 *out_sum);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_convert_octal_string
+ *
+ * PARAMETERS: string - Null terminated input string
+ * return_value_ptr - Where the converted value is returned
+ *
+ * RETURN: Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 8 conversion of the input string to an
+ * integer value, either 32 or 64 bits.
+ *
+ * NOTE: Maximum 64-bit unsigned octal value is 01777777777777777777777
+ * Maximum 32-bit unsigned octal value is 037777777777
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_octal_string(char *string, u64 *return_value_ptr)
+{
+ u64 accumulated_value = 0;
+ acpi_status status = AE_OK;
+
+ /* Convert each ASCII byte in the input string */
+
+ while (*string) {
+
+ /* Character must be ASCII 0-7, otherwise terminate with no error */
+
+ if (!(ACPI_IS_OCTAL_DIGIT(*string))) {
+ break;
+ }
+
+ /* Convert and insert this octal digit into the accumulator */
+
+ status = acpi_ut_insert_digit(&accumulated_value, 8, *string);
+ if (ACPI_FAILURE(status)) {
+ status = AE_OCTAL_OVERFLOW;
+ break;
+ }
+
+ string++;
+ }
+
+ /* Always return the value that has been accumulated */
+
+ *return_value_ptr = accumulated_value;
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_convert_decimal_string
+ *
+ * PARAMETERS: string - Null terminated input string
+ * return_value_ptr - Where the converted value is returned
+ *
+ * RETURN: Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 10 conversion of the input string to an
+ * integer value, either 32 or 64 bits.
+ *
+ * NOTE: Maximum 64-bit unsigned decimal value is 18446744073709551615
+ * Maximum 32-bit unsigned decimal value is 4294967295
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_decimal_string(char *string, u64 *return_value_ptr)
+{
+ u64 accumulated_value = 0;
+ acpi_status status = AE_OK;
+
+ /* Convert each ASCII byte in the input string */
+
+ while (*string) {
+
+ /* Character must be ASCII 0-9, otherwise terminate with no error */
+
+ if (!isdigit(*string)) {
+ break;
+ }
+
+ /* Convert and insert this decimal digit into the accumulator */
+
+ status = acpi_ut_insert_digit(&accumulated_value, 10, *string);
+ if (ACPI_FAILURE(status)) {
+ status = AE_DECIMAL_OVERFLOW;
+ break;
+ }
+
+ string++;
+ }
+
+ /* Always return the value that has been accumulated */
+
+ *return_value_ptr = accumulated_value;
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_convert_hex_string
+ *
+ * PARAMETERS: string - Null terminated input string
+ * return_value_ptr - Where the converted value is returned
+ *
+ * RETURN: Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 16 conversion of the input string to an
+ * integer value, either 32 or 64 bits.
+ *
+ * NOTE: Maximum 64-bit unsigned hex value is 0xFFFFFFFFFFFFFFFF
+ * Maximum 32-bit unsigned hex value is 0xFFFFFFFF
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_hex_string(char *string, u64 *return_value_ptr)
+{
+ u64 accumulated_value = 0;
+ acpi_status status = AE_OK;
+
+ /* Convert each ASCII byte in the input string */
+
+ while (*string) {
+
+ /* Must be ASCII A-F, a-f, or 0-9, otherwise terminate with no error */
+
+ if (!isxdigit(*string)) {
+ break;
+ }
+
+ /* Convert and insert this hex digit into the accumulator */
+
+ status = acpi_ut_insert_digit(&accumulated_value, 16, *string);
+ if (ACPI_FAILURE(status)) {
+ status = AE_HEX_OVERFLOW;
+ break;
+ }
+
+ string++;
+ }
+
+ /* Always return the value that has been accumulated */
+
+ *return_value_ptr = accumulated_value;
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_remove_leading_zeros
+ *
+ * PARAMETERS: string - Pointer to input ASCII string
+ *
+ * RETURN: Next character after any leading zeros. This character may be
+ * used by the caller to detect end-of-string.
+ *
+ * DESCRIPTION: Remove any leading zeros in the input string. Return the
+ * next character after the final ASCII zero to enable the caller
+ * to check for the end of the string (NULL terminator).
+ *
+ ******************************************************************************/
+
+char acpi_ut_remove_leading_zeros(char **string)
+{
+
+ while (**string == ACPI_ASCII_ZERO) {
+ *string += 1;
+ }
+
+ return (**string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_remove_whitespace
+ *
+ * PARAMETERS: string - Pointer to input ASCII string
+ *
+ * RETURN: Next character after any whitespace. This character may be
+ * used by the caller to detect end-of-string.
+ *
+ * DESCRIPTION: Remove any leading whitespace in the input string. Return the
+ * next character after the final ASCII zero to enable the caller
+ * to check for the end of the string (NULL terminator).
+ *
+ ******************************************************************************/
+
+char acpi_ut_remove_whitespace(char **string)
+{
+
+ while (isspace((u8)**string)) {
+ *string += 1;
+ }
+
+ return (**string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_detect_hex_prefix
+ *
+ * PARAMETERS: string - Pointer to input ASCII string
+ *
+ * RETURN: TRUE if a "0x" prefix was found at the start of the string
+ *
+ * DESCRIPTION: Detect and remove a hex "0x" prefix
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_detect_hex_prefix(char **string)
+{
+ char *initial_position = *string;
+
+ acpi_ut_remove_hex_prefix(string);
+ if (*string != initial_position) {
+ return (TRUE); /* String is past leading 0x */
+ }
+
+ return (FALSE); /* Not a hex string */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_remove_hex_prefix
+ *
+ * PARAMETERS: string - Pointer to input ASCII string
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: Remove a hex "0x" prefix
+ *
+ ******************************************************************************/
+
+void acpi_ut_remove_hex_prefix(char **string)
+{
+ if ((**string == ACPI_ASCII_ZERO) &&
+ (tolower((int)*(*string + 1)) == 'x')) {
+ *string += 2; /* Go past the leading 0x */
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_detect_octal_prefix
+ *
+ * PARAMETERS: string - Pointer to input ASCII string
+ *
+ * RETURN: True if an octal "0" prefix was found at the start of the
+ * string
+ *
+ * DESCRIPTION: Detect and remove an octal prefix (zero)
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_detect_octal_prefix(char **string)
+{
+
+ if (**string == ACPI_ASCII_ZERO) {
+ *string += 1; /* Go past the leading 0 */
+ return (TRUE);
+ }
+
+ return (FALSE); /* Not an octal string */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_insert_digit
+ *
+ * PARAMETERS: accumulated_value - Current value of the integer value
+ * accumulator. The new value is
+ * returned here.
+ * base - Radix, either 8/10/16
+ * ascii_digit - ASCII single digit to be inserted
+ *
+ * RETURN: Status and result of the convert/insert operation. The only
+ * possible returned exception code is numeric overflow of
+ * either the multiply or add conversion operations.
+ *
+ * DESCRIPTION: Generic conversion and insertion function for all bases:
+ *
+ * 1) Multiply the current accumulated/converted value by the
+ * base in order to make room for the new character.
+ *
+ * 2) Convert the new character to binary and add it to the
+ * current accumulated value.
+ *
+ * Note: The only possible exception indicates an integer
+ * overflow (AE_NUMERIC_OVERFLOW)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_insert_digit(u64 *accumulated_value, u32 base, int ascii_digit)
+{
+ acpi_status status;
+ u64 product;
+
+ /* Make room in the accumulated value for the incoming digit */
+
+ status = acpi_ut_strtoul_multiply64(*accumulated_value, base, &product);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Add in the new digit, and store the sum to the accumulated value */
+
+ status =
+ acpi_ut_strtoul_add64(product,
+ acpi_ut_ascii_char_to_hex(ascii_digit),
+ accumulated_value);
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_strtoul_multiply64
+ *
+ * PARAMETERS: multiplicand - Current accumulated converted integer
+ * base - Base/Radix
+ * out_product - Where the product is returned
+ *
+ * RETURN: Status and 64-bit product
+ *
+ * DESCRIPTION: Multiply two 64-bit values, with checking for 64-bit overflow as
+ * well as 32-bit overflow if necessary (if the current global
+ * integer width is 32).
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_strtoul_multiply64(u64 multiplicand, u32 base, u64 *out_product)
+{
+ u64 product;
+ u64 quotient;
+
+ /* Exit if either operand is zero */
+
+ *out_product = 0;
+ if (!multiplicand || !base) {
+ return (AE_OK);
+ }
+
+ /*
+ * Check for 64-bit overflow before the actual multiplication.
+ *
+ * Notes: 64-bit division is often not supported on 32-bit platforms
+ * (it requires a library function), Therefore ACPICA has a local
+ * 64-bit divide function. Also, Multiplier is currently only used
+ * as the radix (8/10/16), to the 64/32 divide will always work.
+ */
+ acpi_ut_short_divide(ACPI_UINT64_MAX, base, "ient, NULL);
+ if (multiplicand > quotient) {
+ return (AE_NUMERIC_OVERFLOW);
+ }
+
+ product = multiplicand * base;
+
+ /* Check for 32-bit overflow if necessary */
+
+ if ((acpi_gbl_integer_bit_width == 32) && (product > ACPI_UINT32_MAX)) {
+ return (AE_NUMERIC_OVERFLOW);
+ }
+
+ *out_product = product;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_strtoul_add64
+ *
+ * PARAMETERS: addend1 - Current accumulated converted integer
+ * digit - New hex value/char
+ * out_sum - Where sum is returned (Accumulator)
+ *
+ * RETURN: Status and 64-bit sum
+ *
+ * DESCRIPTION: Add two 64-bit values, with checking for 64-bit overflow as
+ * well as 32-bit overflow if necessary (if the current global
+ * integer width is 32).
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ut_strtoul_add64(u64 addend1, u32 digit, u64 *out_sum)
+{
+ u64 sum;
+
+ /* Check for 64-bit overflow before the actual addition */
+
+ if ((addend1 > 0) && (digit > (ACPI_UINT64_MAX - addend1))) {
+ return (AE_NUMERIC_OVERFLOW);
+ }
+
+ sum = addend1 + digit;
+
+ /* Check for 32-bit overflow if necessary */
+
+ if ((acpi_gbl_integer_bit_width == 32) && (sum > ACPI_UINT32_MAX)) {
+ return (AE_NUMERIC_OVERFLOW);
+ }
+
+ *out_sum = sum;
+ return (AE_OK);
+}