add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/tools/gpio/gpio-hammer.c
..
..
@@ -1,11 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
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2
 /*
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  * gpio-hammer - example swiss army knife to shake GPIO lines on a system
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  *
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  * Copyright (C) 2016 Linus Walleij
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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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7
  * Usage:
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8
  *	gpio-hammer -n <device-name> -o <offset1> -o <offset2>
..
..
@@ -25,39 +22,46 @@
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22
 #include <linux/gpio.h>
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23
 #include "gpio-utils.h"
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24
 
28
-int hammer_device(const char *device_name, unsigned int *lines, int nlines,
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+int hammer_device(const char *device_name, unsigned int *lines, int num_lines,
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26
 		  unsigned int loops)
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27
 {
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-	struct gpiohandle_data data;
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+	struct gpio_v2_line_values values;
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+	struct gpio_v2_line_config config;
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 	char swirr[] = "-\\|/";
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 	int fd;
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32
 	int ret;
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 	int i, j;
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 	unsigned int iteration = 0;
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-	memset(&data.values, 0, sizeof(data.values));
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-	ret = gpiotools_request_linehandle(device_name, lines, nlines,
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-					   GPIOHANDLE_REQUEST_OUTPUT, &data,
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-					   "gpio-hammer");
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+	memset(&config, 0, sizeof(config));
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+	config.flags = GPIO_V2_LINE_FLAG_OUTPUT;
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+
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+	ret = gpiotools_request_line(device_name, lines, num_lines,
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+				     &config, "gpio-hammer");
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 	if (ret < 0)
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 		goto exit_error;
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 	else
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 		fd = ret;
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-	ret = gpiotools_get_values(fd, &data);
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+	values.mask = 0;
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+	values.bits = 0;
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+	for (i = 0; i < num_lines; i++)
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+		gpiotools_set_bit(&values.mask, i);
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+
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+	ret = gpiotools_get_values(fd, &values);
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 	if (ret < 0)
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 		goto exit_close_error;
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54
 
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 	fprintf(stdout, "Hammer lines [");
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-	for (i = 0; i < nlines; i++) {
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+	for (i = 0; i < num_lines; i++) {
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 		fprintf(stdout, "%d", lines[i]);
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-		if (i != (nlines - 1))
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+		if (i != (num_lines - 1))
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 			fprintf(stdout, ", ");
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 	}
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 	fprintf(stdout, "] on %s, initial states: [", device_name);
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-	for (i = 0; i < nlines; i++) {
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-		fprintf(stdout, "%d", data.values[i]);
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-		if (i != (nlines - 1))
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+	for (i = 0; i < num_lines; i++) {
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+		fprintf(stdout, "%d", gpiotools_test_bit(values.bits, i));
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+		if (i != (num_lines - 1))
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 			fprintf(stdout, ", ");
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 	}
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 	fprintf(stdout, "]\n");
..
..
@@ -66,27 +70,28 @@
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 	j = 0;
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 	while (1) {
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 		/* Invert all lines so we blink */
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-		for (i = 0; i < nlines; i++)
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-			data.values[i] = !data.values[i];
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+		for (i = 0; i < num_lines; i++)
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+			gpiotools_change_bit(&values.bits, i);
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75
 
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-		ret = gpiotools_set_values(fd, &data);
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+		ret = gpiotools_set_values(fd, &values);
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 		if (ret < 0)
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 			goto exit_close_error;
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79
 
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 		/* Re-read values to get status */
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-		ret = gpiotools_get_values(fd, &data);
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+		ret = gpiotools_get_values(fd, &values);
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 		if (ret < 0)
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 			goto exit_close_error;
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84
 
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 		fprintf(stdout, "[%c] ", swirr[j]);
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 		j++;
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-		if (j == sizeof(swirr)-1)
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+		if (j == sizeof(swirr) - 1)
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 			j = 0;
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89
 
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 		fprintf(stdout, "[");
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-		for (i = 0; i < nlines; i++) {
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-			fprintf(stdout, "%d: %d", lines[i], data.values[i]);
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-			if (i != (nlines - 1))
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+		for (i = 0; i < num_lines; i++) {
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+			fprintf(stdout, "%d: %d", lines[i],
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+				gpiotools_test_bit(values.bits, i));
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+			if (i != (num_lines - 1))
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 				fprintf(stdout, ", ");
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 		}
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 		fprintf(stdout, "]\r");
..
..
@@ -100,7 +105,7 @@
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 	ret = 0;
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106
 
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 exit_close_error:
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-	gpiotools_release_linehandle(fd);
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+	gpiotools_release_line(fd);
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 exit_error:
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 	return ret;
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111
 }
..
..
@@ -124,7 +129,7 @@
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 	const char *device_name = NULL;
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 	unsigned int lines[GPIOHANDLES_MAX];
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 	unsigned int loops = 0;
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-	int nlines;
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+	int num_lines;
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 	int c;
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 	int i;
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135
 
..
..
@@ -156,16 +161,16 @@
156
161
 
157
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 	if (i >= GPIOHANDLES_MAX) {
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163
 		fprintf(stderr,
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-			"Only %d occurences of '-o' are allowed, %d were found\n",
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+			"Only %d occurrences of '-o' are allowed, %d were found\n",
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165
 			GPIOHANDLES_MAX, i + 1);
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 		return -1;
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167
 	}
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168
 
164
-	nlines = i;
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+	num_lines = i;
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170
 
166
-	if (!device_name || !nlines) {
171
+	if (!device_name || !num_lines) {
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172
 		print_usage();
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 		return -1;
169
174
 	}
170
-	return hammer_device(device_name, lines, nlines, loops);
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+	return hammer_device(device_name, lines, num_lines, loops);
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 }