Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 709 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
new file mode 100644
index 000000000..a98c334c3
--- /dev/null
+++ b/drivers/acpi/acpica/utprint.c
@@ -0,0 +1,709 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/******************************************************************************
+ *
+ * Module Name: utprint - Formatted printing routines
+ *
+ * Copyright (C) 2000 - 2018, Intel Corp.
+ *
+ *****************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utprint")
+
+#define ACPI_FORMAT_SIGN            0x01
+#define ACPI_FORMAT_SIGN_PLUS       0x02
+#define ACPI_FORMAT_SIGN_PLUS_SPACE 0x04
+#define ACPI_FORMAT_ZERO            0x08
+#define ACPI_FORMAT_LEFT            0x10
+#define ACPI_FORMAT_UPPER           0x20
+#define ACPI_FORMAT_PREFIX          0x40
+/* Local prototypes */
+static acpi_size
+acpi_ut_bound_string_length(const char *string, acpi_size count);
+
+static char *acpi_ut_bound_string_output(char *string, const char *end, char c);
+
+static char *acpi_ut_format_number(char *string,
+				   char *end,
+				   u64 number,
+				   u8 base, s32 width, s32 precision, u8 type);
+
+static char *acpi_ut_put_number(char *string, u64 number, u8 base, u8 upper);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_bound_string_length
+ *
+ * PARAMETERS:  string              - String with boundary
+ *              count               - Boundary of the string
+ *
+ * RETURN:      Length of the string. Less than or equal to Count.
+ *
+ * DESCRIPTION: Calculate the length of a string with boundary.
+ *
+ ******************************************************************************/
+
+static acpi_size
+acpi_ut_bound_string_length(const char *string, acpi_size count)
+{
+	u32 length = 0;
+
+	while (*string && count) {
+		length++;
+		string++;
+		count--;
+	}
+
+	return (length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_bound_string_output
+ *
+ * PARAMETERS:  string              - String with boundary
+ *              end                 - Boundary of the string
+ *              c                   - Character to be output to the string
+ *
+ * RETURN:      Updated position for next valid character
+ *
+ * DESCRIPTION: Output a character into a string with boundary check.
+ *
+ ******************************************************************************/
+
+static char *acpi_ut_bound_string_output(char *string, const char *end, char c)
+{
+
+	if (string < end) {
+		*string = c;
+	}
+
+	++string;
+	return (string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_put_number
+ *
+ * PARAMETERS:  string              - Buffer to hold reverse-ordered string
+ *              number              - Integer to be converted
+ *              base                - Base of the integer
+ *              upper               - Whether or not using upper cased digits
+ *
+ * RETURN:      Updated position for next valid character
+ *
+ * DESCRIPTION: Convert an integer into a string, note that, the string holds a
+ *              reversed ordered number without the trailing zero.
+ *
+ ******************************************************************************/
+
+static char *acpi_ut_put_number(char *string, u64 number, u8 base, u8 upper)
+{
+	const char *digits;
+	u64 digit_index;
+	char *pos;
+
+	pos = string;
+	digits = upper ? acpi_gbl_upper_hex_digits : acpi_gbl_lower_hex_digits;
+
+	if (number == 0) {
+		*(pos++) = '0';
+	} else {
+		while (number) {
+			(void)acpi_ut_divide(number, base, &number,
+					     &digit_index);
+			*(pos++) = digits[digit_index];
+		}
+	}
+
+	/* *(Pos++) = '0'; */
+	return (pos);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_scan_number
+ *
+ * PARAMETERS:  string              - String buffer
+ *              number_ptr          - Where the number is returned
+ *
+ * RETURN:      Updated position for next valid character
+ *
+ * DESCRIPTION: Scan a string for a decimal integer.
+ *
+ ******************************************************************************/
+
+const char *acpi_ut_scan_number(const char *string, u64 *number_ptr)
+{
+	u64 number = 0;
+
+	while (isdigit((int)*string)) {
+		acpi_ut_short_multiply(number, 10, &number);
+		number += *(string++) - '0';
+	}
+
+	*number_ptr = number;
+	return (string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_print_number
+ *
+ * PARAMETERS:  string              - String buffer
+ *              number              - The number to be converted
+ *
+ * RETURN:      Updated position for next valid character
+ *
+ * DESCRIPTION: Print a decimal integer into a string.
+ *
+ ******************************************************************************/
+
+const char *acpi_ut_print_number(char *string, u64 number)
+{
+	char ascii_string[20];
+	const char *pos1;
+	char *pos2;
+
+	pos1 = acpi_ut_put_number(ascii_string, number, 10, FALSE);
+	pos2 = string;
+
+	while (pos1 != ascii_string) {
+		*(pos2++) = *(--pos1);
+	}
+
+	*pos2 = 0;
+	return (string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_format_number
+ *
+ * PARAMETERS:  string              - String buffer with boundary
+ *              end                 - Boundary of the string
+ *              number              - The number to be converted
+ *              base                - Base of the integer
+ *              width               - Field width
+ *              precision           - Precision of the integer
+ *              type                - Special printing flags
+ *
+ * RETURN:      Updated position for next valid character
+ *
+ * DESCRIPTION: Print an integer into a string with any base and any precision.
+ *
+ ******************************************************************************/
+
+static char *acpi_ut_format_number(char *string,
+				   char *end,
+				   u64 number,
+				   u8 base, s32 width, s32 precision, u8 type)
+{
+	char *pos;
+	char sign;
+	char zero;
+	u8 need_prefix;
+	u8 upper;
+	s32 i;
+	char reversed_string[66];
+
+	/* Parameter validation */
+
+	if (base < 2 || base > 16) {
+		return (NULL);
+	}
+
+	if (type & ACPI_FORMAT_LEFT) {
+		type &= ~ACPI_FORMAT_ZERO;
+	}
+
+	need_prefix = ((type & ACPI_FORMAT_PREFIX)
+		       && base != 10) ? TRUE : FALSE;
+	upper = (type & ACPI_FORMAT_UPPER) ? TRUE : FALSE;
+	zero = (type & ACPI_FORMAT_ZERO) ? '0' : ' ';
+
+	/* Calculate size according to sign and prefix */
+
+	sign = '\0';
+	if (type & ACPI_FORMAT_SIGN) {
+		if ((s64)number < 0) {
+			sign = '-';
+			number = -(s64)number;
+			width--;
+		} else if (type & ACPI_FORMAT_SIGN_PLUS) {
+			sign = '+';
+			width--;
+		} else if (type & ACPI_FORMAT_SIGN_PLUS_SPACE) {
+			sign = ' ';
+			width--;
+		}
+	}
+	if (need_prefix) {
+		width--;
+		if (base == 16) {
+			width--;
+		}
+	}
+
+	/* Generate full string in reverse order */
+
+	pos = acpi_ut_put_number(reversed_string, number, base, upper);
+	i = (s32)ACPI_PTR_DIFF(pos, reversed_string);
+
+	/* Printing 100 using %2d gives "100", not "00" */
+
+	if (i > precision) {
+		precision = i;
+	}
+
+	width -= precision;
+
+	/* Output the string */
+
+	if (!(type & (ACPI_FORMAT_ZERO | ACPI_FORMAT_LEFT))) {
+		while (--width >= 0) {
+			string = acpi_ut_bound_string_output(string, end, ' ');
+		}
+	}
+	if (sign) {
+		string = acpi_ut_bound_string_output(string, end, sign);
+	}
+	if (need_prefix) {
+		string = acpi_ut_bound_string_output(string, end, '0');
+		if (base == 16) {
+			string =
+			    acpi_ut_bound_string_output(string, end,
+							upper ? 'X' : 'x');
+		}
+	}
+	if (!(type & ACPI_FORMAT_LEFT)) {
+		while (--width >= 0) {
+			string = acpi_ut_bound_string_output(string, end, zero);
+		}
+	}
+
+	while (i <= --precision) {
+		string = acpi_ut_bound_string_output(string, end, '0');
+	}
+	while (--i >= 0) {
+		string = acpi_ut_bound_string_output(string, end,
+						     reversed_string[i]);
+	}
+	while (--width >= 0) {
+		string = acpi_ut_bound_string_output(string, end, ' ');
+	}
+
+	return (string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    vsnprintf
+ *
+ * PARAMETERS:  string              - String with boundary
+ *              size                - Boundary of the string
+ *              format              - Standard printf format
+ *              args                - Argument list
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to a string using argument list pointer.
+ *
+ ******************************************************************************/
+
+int vsnprintf(char *string, acpi_size size, const char *format, va_list args)
+{
+	u8 base;
+	u8 type;
+	s32 width;
+	s32 precision;
+	char qualifier;
+	u64 number;
+	char *pos;
+	char *end;
+	char c;
+	const char *s;
+	const void *p;
+	s32 length;
+	int i;
+
+	pos = string;
+	end = string + size;
+
+	for (; *format; ++format) {
+		if (*format != '%') {
+			pos = acpi_ut_bound_string_output(pos, end, *format);
+			continue;
+		}
+
+		type = 0;
+		base = 10;
+
+		/* Process sign */
+
+		do {
+			++format;
+			if (*format == '#') {
+				type |= ACPI_FORMAT_PREFIX;
+			} else if (*format == '0') {
+				type |= ACPI_FORMAT_ZERO;
+			} else if (*format == '+') {
+				type |= ACPI_FORMAT_SIGN_PLUS;
+			} else if (*format == ' ') {
+				type |= ACPI_FORMAT_SIGN_PLUS_SPACE;
+			} else if (*format == '-') {
+				type |= ACPI_FORMAT_LEFT;
+			} else {
+				break;
+			}
+
+		} while (1);
+
+		/* Process width */
+
+		width = -1;
+		if (isdigit((int)*format)) {
+			format = acpi_ut_scan_number(format, &number);
+			width = (s32)number;
+		} else if (*format == '*') {
+			++format;
+			width = va_arg(args, int);
+			if (width < 0) {
+				width = -width;
+				type |= ACPI_FORMAT_LEFT;
+			}
+		}
+
+		/* Process precision */
+
+		precision = -1;
+		if (*format == '.') {
+			++format;
+			if (isdigit((int)*format)) {
+				format = acpi_ut_scan_number(format, &number);
+				precision = (s32)number;
+			} else if (*format == '*') {
+				++format;
+				precision = va_arg(args, int);
+			}
+
+			if (precision < 0) {
+				precision = 0;
+			}
+		}
+
+		/* Process qualifier */
+
+		qualifier = -1;
+		if (*format == 'h' || *format == 'l' || *format == 'L') {
+			qualifier = *format;
+			++format;
+
+			if (qualifier == 'l' && *format == 'l') {
+				qualifier = 'L';
+				++format;
+			}
+		}
+
+		switch (*format) {
+		case '%':
+
+			pos = acpi_ut_bound_string_output(pos, end, '%');
+			continue;
+
+		case 'c':
+
+			if (!(type & ACPI_FORMAT_LEFT)) {
+				while (--width > 0) {
+					pos =
+					    acpi_ut_bound_string_output(pos,
+									end,
+									' ');
+				}
+			}
+
+			c = (char)va_arg(args, int);
+			pos = acpi_ut_bound_string_output(pos, end, c);
+
+			while (--width > 0) {
+				pos =
+				    acpi_ut_bound_string_output(pos, end, ' ');
+			}
+			continue;
+
+		case 's':
+
+			s = va_arg(args, char *);
+			if (!s) {
+				s = "<NULL>";
+			}
+			length = (s32)acpi_ut_bound_string_length(s, precision);
+			if (!(type & ACPI_FORMAT_LEFT)) {
+				while (length < width--) {
+					pos =
+					    acpi_ut_bound_string_output(pos,
+									end,
+									' ');
+				}
+			}
+
+			for (i = 0; i < length; ++i) {
+				pos = acpi_ut_bound_string_output(pos, end, *s);
+				++s;
+			}
+
+			while (length < width--) {
+				pos =
+				    acpi_ut_bound_string_output(pos, end, ' ');
+			}
+			continue;
+
+		case 'o':
+
+			base = 8;
+			break;
+
+		case 'X':
+
+			type |= ACPI_FORMAT_UPPER;
+			/* FALLTHROUGH */
+
+		case 'x':
+
+			base = 16;
+			break;
+
+		case 'd':
+		case 'i':
+
+			type |= ACPI_FORMAT_SIGN;
+
+		case 'u':
+
+			break;
+
+		case 'p':
+
+			if (width == -1) {
+				width = 2 * sizeof(void *);
+				type |= ACPI_FORMAT_ZERO;
+			}
+
+			p = va_arg(args, void *);
+			pos =
+			    acpi_ut_format_number(pos, end, ACPI_TO_INTEGER(p),
+						  16, width, precision, type);
+			continue;
+
+		default:
+
+			pos = acpi_ut_bound_string_output(pos, end, '%');
+			if (*format) {
+				pos =
+				    acpi_ut_bound_string_output(pos, end,
+								*format);
+			} else {
+				--format;
+			}
+			continue;
+		}
+
+		if (qualifier == 'L') {
+			number = va_arg(args, u64);
+			if (type & ACPI_FORMAT_SIGN) {
+				number = (s64)number;
+			}
+		} else if (qualifier == 'l') {
+			number = va_arg(args, unsigned long);
+			if (type & ACPI_FORMAT_SIGN) {
+				number = (s32)number;
+			}
+		} else if (qualifier == 'h') {
+			number = (u16)va_arg(args, int);
+			if (type & ACPI_FORMAT_SIGN) {
+				number = (s16)number;
+			}
+		} else {
+			number = va_arg(args, unsigned int);
+			if (type & ACPI_FORMAT_SIGN) {
+				number = (signed int)number;
+			}
+		}
+
+		pos = acpi_ut_format_number(pos, end, number, base,
+					    width, precision, type);
+	}
+
+	if (size > 0) {
+		if (pos < end) {
+			*pos = '\0';
+		} else {
+			end[-1] = '\0';
+		}
+	}
+
+	return ((int)ACPI_PTR_DIFF(pos, string));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    snprintf
+ *
+ * PARAMETERS:  string              - String with boundary
+ *              size                - Boundary of the string
+ *              Format, ...         - Standard printf format
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to a string.
+ *
+ ******************************************************************************/
+
+int snprintf(char *string, acpi_size size, const char *format, ...)
+{
+	va_list args;
+	int length;
+
+	va_start(args, format);
+	length = vsnprintf(string, size, format, args);
+	va_end(args);
+
+	return (length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    sprintf
+ *
+ * PARAMETERS:  string              - String with boundary
+ *              Format, ...         - Standard printf format
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to a string.
+ *
+ ******************************************************************************/
+
+int sprintf(char *string, const char *format, ...)
+{
+	va_list args;
+	int length;
+
+	va_start(args, format);
+	length = vsnprintf(string, ACPI_UINT32_MAX, format, args);
+	va_end(args);
+
+	return (length);
+}
+
+#ifdef ACPI_APPLICATION
+/*******************************************************************************
+ *
+ * FUNCTION:    vprintf
+ *
+ * PARAMETERS:  format              - Standard printf format
+ *              args                - Argument list
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to stdout using argument list pointer.
+ *
+ ******************************************************************************/
+
+int vprintf(const char *format, va_list args)
+{
+	acpi_cpu_flags flags;
+	int length;
+
+	flags = acpi_os_acquire_lock(acpi_gbl_print_lock);
+	length = vsnprintf(acpi_gbl_print_buffer,
+			   sizeof(acpi_gbl_print_buffer), format, args);
+
+	(void)fwrite(acpi_gbl_print_buffer, length, 1, ACPI_FILE_OUT);
+	acpi_os_release_lock(acpi_gbl_print_lock, flags);
+
+	return (length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    printf
+ *
+ * PARAMETERS:  Format, ...         - Standard printf format
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to stdout.
+ *
+ ******************************************************************************/
+
+int printf(const char *format, ...)
+{
+	va_list args;
+	int length;
+
+	va_start(args, format);
+	length = vprintf(format, args);
+	va_end(args);
+
+	return (length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    vfprintf
+ *
+ * PARAMETERS:  file                - File descriptor
+ *              format              - Standard printf format
+ *              args                - Argument list
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to a file using argument list pointer.
+ *
+ ******************************************************************************/
+
+int vfprintf(FILE * file, const char *format, va_list args)
+{
+	acpi_cpu_flags flags;
+	int length;
+
+	flags = acpi_os_acquire_lock(acpi_gbl_print_lock);
+	length = vsnprintf(acpi_gbl_print_buffer,
+			   sizeof(acpi_gbl_print_buffer), format, args);
+
+	(void)fwrite(acpi_gbl_print_buffer, length, 1, file);
+	acpi_os_release_lock(acpi_gbl_print_lock, flags);
+
+	return (length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    fprintf
+ *
+ * PARAMETERS:  file                - File descriptor
+ *              Format, ...         - Standard printf format
+ *
+ * RETURN:      Number of bytes actually written.
+ *
+ * DESCRIPTION: Formatted output to a file.
+ *
+ ******************************************************************************/
+
+int fprintf(FILE * file, const char *format, ...)
+{
+	va_list args;
+	int length;
+
+	va_start(args, format);
+	length = vfprintf(file, format, args);
+	va_end(args);
+
+	return (length);
+}
+#endif