change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/tools/gpio/gpio-event-mon.c
..
..
@@ -1,11 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
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2
 /*
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3
  * gpio-event-mon - monitor GPIO line events from userspace
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  *
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5
  * Copyright (C) 2016 Linus Walleij
5
- *
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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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6
  *
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  * Usage:
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8
  *	gpio-event-mon -n <device-name> -o <offset>
..
..
@@ -26,17 +23,17 @@
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23
 #include <sys/ioctl.h>
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24
 #include <sys/types.h>
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 #include <linux/gpio.h>
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+#include "gpio-utils.h"
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27
 
30
28
 int monitor_device(const char *device_name,
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-		   unsigned int line,
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-		   uint32_t handleflags,
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-		   uint32_t eventflags,
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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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 		   unsigned int loops)
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 {
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-	struct gpioevent_request req;
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-	struct gpiohandle_data data;
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+	struct gpio_v2_line_values values;
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 	char *chrdev_name;
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-	int fd;
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+	int cfd, lfd;
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 	int ret;
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 	int i = 0;
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39
 
..
..
@@ -44,44 +41,56 @@
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 	if (ret < 0)
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 		return -ENOMEM;
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43
 
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-	fd = open(chrdev_name, 0);
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-	if (fd == -1) {
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+	cfd = open(chrdev_name, 0);
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+	if (cfd == -1) {
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 		ret = -errno;
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 		fprintf(stderr, "Failed to open %s\n", chrdev_name);
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-		goto exit_close_error;
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+		goto exit_free_name;
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49
 	}
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-	req.lineoffset = line;
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-	req.handleflags = handleflags;
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-	req.eventflags = eventflags;
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-	strcpy(req.consumer_label, "gpio-event-mon");
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-
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-	ret = ioctl(fd, GPIO_GET_LINEEVENT_IOCTL, &req);
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-	if (ret == -1) {
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-		ret = -errno;
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-		fprintf(stderr, "Failed to issue GET EVENT "
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-			"IOCTL (%d)\n",
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-			ret);
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-		goto exit_close_error;
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-	}
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+	ret = gpiotools_request_line(device_name, lines, num_lines, config,
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+				     "gpio-event-mon");
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+	if (ret < 0)
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+		goto exit_device_close;
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+	else
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+		lfd = ret;
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57
 
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 	/* Read initial states */
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-	ret = ioctl(req.fd, GPIOHANDLE_GET_LINE_VALUES_IOCTL, &data);
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-	if (ret == -1) {
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-		ret = -errno;
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-		fprintf(stderr, "Failed to issue GPIOHANDLE GET LINE "
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-			"VALUES IOCTL (%d)\n",
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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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+	ret = gpiotools_get_values(lfd, &values);
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+	if (ret < 0) {
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+		fprintf(stderr,
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+			"Failed to issue GPIO LINE GET VALUES IOCTL (%d)\n",
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 			ret);
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-		goto exit_close_error;
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+		goto exit_line_close;
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 	}
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70
 
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-	fprintf(stdout, "Monitoring line %d on %s\n", line, device_name);
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-	fprintf(stdout, "Initial line value: %d\n", data.values[0]);
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+	if (num_lines == 1) {
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+		fprintf(stdout, "Monitoring line %d on %s\n", lines[0], device_name);
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+		fprintf(stdout, "Initial line value: %d\n",
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+			gpiotools_test_bit(values.bits, 0));
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+	} else {
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+		fprintf(stdout, "Monitoring lines %d", lines[0]);
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+		for (i = 1; i < num_lines - 1; i++)
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+			fprintf(stdout, ", %d", lines[i]);
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+		fprintf(stdout, " and %d on %s\n", lines[i], device_name);
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+		fprintf(stdout, "Initial line values: %d",
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+			gpiotools_test_bit(values.bits, 0));
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+		for (i = 1; i < num_lines - 1; i++)
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+			fprintf(stdout, ", %d",
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+				gpiotools_test_bit(values.bits, i));
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+		fprintf(stdout, " and %d\n",
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+			gpiotools_test_bit(values.bits, i));
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+	}
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+	i = 0;
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 	while (1) {
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-		struct gpioevent_data event;
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+		struct gpio_v2_line_event event;
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92
 
84
-		ret = read(req.fd, &event, sizeof(event));
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+		ret = read(lfd, &event, sizeof(event));
85
94
 		if (ret == -1) {
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95
 			if (errno == -EAGAIN) {
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96
 				fprintf(stderr, "nothing available\n");
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..
@@ -99,12 +108,14 @@
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 			ret = -EIO;
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 			break;
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 		}
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-		fprintf(stdout, "GPIO EVENT %llu: ", event.timestamp);
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+		fprintf(stdout, "GPIO EVENT at %" PRIu64 " on line %d (%d|%d) ",
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+			(uint64_t)event.timestamp_ns, event.offset, event.line_seqno,
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+			event.seqno);
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114
 		switch (event.id) {
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-		case GPIOEVENT_EVENT_RISING_EDGE:
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+		case GPIO_V2_LINE_EVENT_RISING_EDGE:
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116
 			fprintf(stdout, "rising edge");
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117
 			break;
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-		case GPIOEVENT_EVENT_FALLING_EDGE:
118
+		case GPIO_V2_LINE_EVENT_FALLING_EDGE:
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 			fprintf(stdout, "falling edge");
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 			break;
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121
 		default:
..
..
@@ -117,9 +128,13 @@
117
128
 			break;
118
129
 	}
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130
 
120
-exit_close_error:
121
-	if (close(fd) == -1)
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+exit_line_close:
132
+	if (close(lfd) == -1)
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+		perror("Failed to close line file");
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+exit_device_close:
135
+	if (close(cfd) == -1)
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136
 		perror("Failed to close GPIO character device file");
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+exit_free_name:
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138
 	free(chrdev_name);
124
139
 	return ret;
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140
 }
..
..
@@ -129,29 +144,37 @@
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144
 	fprintf(stderr, "Usage: gpio-event-mon [options]...\n"
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 		"Listen to events on GPIO lines, 0->1 1->0\n"
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146
 		"  -n <name>  Listen on GPIOs on a named device (must be stated)\n"
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-		"  -o <n>     Offset to monitor\n"
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+		"  -o <n>     Offset of line to monitor (may be repeated)\n"
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148
 		"  -d         Set line as open drain\n"
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149
 		"  -s         Set line as open source\n"
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 		"  -r         Listen for rising edges\n"
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151
 		"  -f         Listen for falling edges\n"
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+		"  -b <n>     Debounce the line with period n microseconds\n"
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 		" [-c <n>]    Do <n> loops (optional, infinite loop if not stated)\n"
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 		"  -?         This helptext\n"
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 		"\n"
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 		"Example:\n"
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-		"gpio-event-mon -n gpiochip0 -o 4 -r -f\n"
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+		"gpio-event-mon -n gpiochip0 -o 4 -r -f -b 10000\n"
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158
 	);
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159
 }
160
+
161
+#define EDGE_FLAGS \
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+	(GPIO_V2_LINE_FLAG_EDGE_RISING | \
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+	 GPIO_V2_LINE_FLAG_EDGE_FALLING)
144
164
 
145
165
 int main(int argc, char **argv)
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166
 {
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167
 	const char *device_name = NULL;
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-	unsigned int line = -1;
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+	unsigned int lines[GPIO_V2_LINES_MAX];
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+	unsigned int num_lines = 0;
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170
 	unsigned int loops = 0;
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-	uint32_t handleflags = GPIOHANDLE_REQUEST_INPUT;
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-	uint32_t eventflags = 0;
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-	int c;
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+	struct gpio_v2_line_config config;
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+	int c, attr, i;
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+	unsigned long debounce_period_us = 0;
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174
 
154
-	while ((c = getopt(argc, argv, "c:n:o:dsrf?")) != -1) {
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+	memset(&config, 0, sizeof(config));
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+	config.flags = GPIO_V2_LINE_FLAG_INPUT;
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+	while ((c = getopt(argc, argv, "c:n:o:b:dsrf?")) != -1) {
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178
 		switch (c) {
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179
 		case 'c':
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180
 			loops = strtoul(optarg, NULL, 10);
..
..
@@ -160,19 +183,27 @@
160
183
 			device_name = optarg;
161
184
 			break;
162
185
 		case 'o':
163
-			line = strtoul(optarg, NULL, 10);
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+			if (num_lines >= GPIO_V2_LINES_MAX) {
187
+				print_usage();
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+				return -1;
189
+			}
190
+			lines[num_lines] = strtoul(optarg, NULL, 10);
191
+			num_lines++;
192
+			break;
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+		case 'b':
194
+			debounce_period_us = strtoul(optarg, NULL, 10);
164
195
 			break;
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196
 		case 'd':
166
-			handleflags |= GPIOHANDLE_REQUEST_OPEN_DRAIN;
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+			config.flags |= GPIO_V2_LINE_FLAG_OPEN_DRAIN;
167
198
 			break;
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199
 		case 's':
169
-			handleflags |= GPIOHANDLE_REQUEST_OPEN_SOURCE;
200
+			config.flags |= GPIO_V2_LINE_FLAG_OPEN_SOURCE;
170
201
 			break;
171
202
 		case 'r':
172
-			eventflags |= GPIOEVENT_REQUEST_RISING_EDGE;
203
+			config.flags |= GPIO_V2_LINE_FLAG_EDGE_RISING;
173
204
 			break;
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205
 		case 'f':
175
-			eventflags |= GPIOEVENT_REQUEST_FALLING_EDGE;
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+			config.flags |= GPIO_V2_LINE_FLAG_EDGE_FALLING;
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207
 			break;
177
208
 		case '?':
178
209
 			print_usage();
..
..
@@ -180,15 +211,23 @@
180
211
 		}
181
212
 	}
182
213
 
183
-	if (!device_name || line == -1) {
214
+	if (debounce_period_us) {
215
+		attr = config.num_attrs;
216
+		config.num_attrs++;
217
+		for (i = 0; i < num_lines; i++)
218
+			gpiotools_set_bit(&config.attrs[attr].mask, i);
219
+		config.attrs[attr].attr.id = GPIO_V2_LINE_ATTR_ID_DEBOUNCE;
220
+		config.attrs[attr].attr.debounce_period_us = debounce_period_us;
221
+	}
222
+
223
+	if (!device_name || num_lines == 0) {
184
224
 		print_usage();
185
225
 		return -1;
186
226
 	}
187
-	if (!eventflags) {
227
+	if (!(config.flags & EDGE_FLAGS)) {
188
228
 		printf("No flags specified, listening on both rising and "
189
229
 		       "falling edges\n");
190
-		eventflags = GPIOEVENT_REQUEST_BOTH_EDGES;
230
+		config.flags |= EDGE_FLAGS;
191
231
 	}
192
-	return monitor_device(device_name, line, handleflags,
193
-			      eventflags, loops);
232
+	return monitor_device(device_name, lines, num_lines, &config, loops);
194
233
 }