change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/tools/gpio/gpio-utils.h
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * GPIO tools - utility helpers library for the GPIO tools
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  *
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@@ -7,14 +8,13 @@
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  * Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
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  * Copyright (c) 2008 Jonathan Cameron
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  * *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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  */
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 #ifndef _GPIO_UTILS_H_
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 #define _GPIO_UTILS_H_
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+#include <stdbool.h>
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 #include <string.h>
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+#include <linux/types.h>
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 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
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@@ -25,19 +25,55 @@
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 }
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 int gpiotools_request_linehandle(const char *device_name, unsigned int *lines,
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-				 unsigned int nlines, unsigned int flag,
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+				 unsigned int num_lines, unsigned int flag,
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 				 struct gpiohandle_data *data,
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 				 const char *consumer_label);
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-int gpiotools_set_values(const int fd, struct gpiohandle_data *data);
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-int gpiotools_get_values(const int fd, struct gpiohandle_data *data);
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 int gpiotools_release_linehandle(const int fd);
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+
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+int gpiotools_request_line(const char *device_name,
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+			   unsigned int *lines,
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+			   unsigned int num_lines,
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+			   struct gpio_v2_line_config *config,
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+			   const char *consumer);
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+int gpiotools_set_values(const int fd, struct gpio_v2_line_values *values);
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+int gpiotools_get_values(const int fd, struct gpio_v2_line_values *values);
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+int gpiotools_release_line(const int fd);
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 int gpiotools_get(const char *device_name, unsigned int line);
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 int gpiotools_gets(const char *device_name, unsigned int *lines,
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-		   unsigned int nlines, struct gpiohandle_data *data);
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+		   unsigned int num_lines, unsigned int *values);
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 int gpiotools_set(const char *device_name, unsigned int line,
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 		  unsigned int value);
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 int gpiotools_sets(const char *device_name, unsigned int *lines,
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-		   unsigned int nlines, struct gpiohandle_data *data);
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+		   unsigned int num_lines, unsigned int *values);
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+
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+/* helper functions for gpio_v2_line_values bits */
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+static inline void gpiotools_set_bit(__u64 *b, int n)
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+{
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+	*b |= _BITULL(n);
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+}
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+
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+static inline void gpiotools_change_bit(__u64 *b, int n)
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+{
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+	*b ^= _BITULL(n);
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+}
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+
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+static inline void gpiotools_clear_bit(__u64 *b, int n)
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+{
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+	*b &= ~_BITULL(n);
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+}
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+
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+static inline int gpiotools_test_bit(__u64 b, int n)
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+{
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+	return !!(b & _BITULL(n));
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+}
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+
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+static inline void gpiotools_assign_bit(__u64 *b, int n, bool value)
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+{
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+	if (value)
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+		gpiotools_set_bit(b, n);
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+	else
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+		gpiotools_clear_bit(b, n);
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+}
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 #endif /* _GPIO_UTILS_H_ */