[mirror_ubuntu-jammy-kernel.git] / drivers / pps / sysfs.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * PPS sysfs support
 *
 * Copyright (C) 2007-2009   Rodolfo Giometti <giometti@linux.it>
 */


#include <linux/device.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/pps_kernel.h>

/*
 * Attribute functions
 */

static ssize_t assert_show(struct device *dev, struct device_attribute *attr,
			   char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	if (!(pps->info.mode & PPS_CAPTUREASSERT))
		return 0;

	return sprintf(buf, "%lld.%09d#%d\n",
			(long long) pps->assert_tu.sec, pps->assert_tu.nsec,
			pps->assert_sequence);
}
static DEVICE_ATTR_RO(assert);

static ssize_t clear_show(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	if (!(pps->info.mode & PPS_CAPTURECLEAR))
		return 0;

	return sprintf(buf, "%lld.%09d#%d\n",
			(long long) pps->clear_tu.sec, pps->clear_tu.nsec,
			pps->clear_sequence);
}
static DEVICE_ATTR_RO(clear);

static ssize_t mode_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	return sprintf(buf, "%4x\n", pps->info.mode);
}
static DEVICE_ATTR_RO(mode);

static ssize_t echo_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	return sprintf(buf, "%d\n", !!pps->info.echo);
}
static DEVICE_ATTR_RO(echo);

static ssize_t name_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	return sprintf(buf, "%s\n", pps->info.name);
}
static DEVICE_ATTR_RO(name);

static ssize_t path_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct pps_device *pps = dev_get_drvdata(dev);

	return sprintf(buf, "%s\n", pps->info.path);
}
static DEVICE_ATTR_RO(path);

static struct attribute *pps_attrs[] = {
	&dev_attr_assert.attr,
	&dev_attr_clear.attr,
	&dev_attr_mode.attr,
	&dev_attr_echo.attr,
	&dev_attr_name.attr,
	&dev_attr_path.attr,
	NULL,
};

static const struct attribute_group pps_group = {
	.attrs = pps_attrs,
};

const struct attribute_group *pps_groups[] = {
	&pps_group,
	NULL,
};
Commit	Line	Data
74ba9207	1	// SPDX-License-Identifier: GPL-2.0-or-later
eae9d2ba RG	2	/*
	3	* PPS sysfs support
	4	*
eae9d2ba	5	* Copyright (C) 2007-2009 Rodolfo Giometti <giometti@linux.it>
eae9d2ba RG	6	*/
	7
	8
	9	#include <linux/device.h>
	10	#include <linux/module.h>
	11	#include <linux/string.h>
	12	#include <linux/pps_kernel.h>
	13
	14	/*
	15	* Attribute functions
	16	*/
	17
bd0eae4e GKH	18	static ssize_t assert_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	19	char *buf)
eae9d2ba RG	20	{
	21	struct pps_device *pps = dev_get_drvdata(dev);
	22
	23	if (!(pps->info.mode & PPS_CAPTUREASSERT))
	24	return 0;
	25
	26	return sprintf(buf, "%lld.%09d#%d\n",
	27	(long long) pps->assert_tu.sec, pps->assert_tu.nsec,
	28	pps->assert_sequence);
	29	}
bd0eae4e	30	static DEVICE_ATTR_RO(assert);
eae9d2ba	31
bd0eae4e GKH	32	static ssize_t clear_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	33	char *buf)
eae9d2ba RG	34	{
	35	struct pps_device *pps = dev_get_drvdata(dev);
	36
	37	if (!(pps->info.mode & PPS_CAPTURECLEAR))
	38	return 0;
	39
	40	return sprintf(buf, "%lld.%09d#%d\n",
	41	(long long) pps->clear_tu.sec, pps->clear_tu.nsec,
	42	pps->clear_sequence);
	43	}
bd0eae4e	44	static DEVICE_ATTR_RO(clear);
eae9d2ba	45
bd0eae4e GKH	46	static ssize_t mode_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	47	char *buf)
eae9d2ba RG	48	{
	49	struct pps_device *pps = dev_get_drvdata(dev);
	50
	51	return sprintf(buf, "%4x\n", pps->info.mode);
	52	}
bd0eae4e	53	static DEVICE_ATTR_RO(mode);
eae9d2ba	54
bd0eae4e GKH	55	static ssize_t echo_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	56	char *buf)
eae9d2ba RG	57	{
	58	struct pps_device *pps = dev_get_drvdata(dev);
	59
	60	return sprintf(buf, "%d\n", !!pps->info.echo);
	61	}
bd0eae4e	62	static DEVICE_ATTR_RO(echo);
eae9d2ba	63
bd0eae4e GKH	64	static ssize_t name_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	65	char *buf)
eae9d2ba RG	66	{
	67	struct pps_device *pps = dev_get_drvdata(dev);
	68
	69	return sprintf(buf, "%s\n", pps->info.name);
	70	}
bd0eae4e	71	static DEVICE_ATTR_RO(name);
eae9d2ba	72
bd0eae4e GKH	73	static ssize_t path_show(struct device dev, struct device_attribute attr,
bd0eae4e GKH	74	char *buf)
eae9d2ba RG	75	{
	76	struct pps_device *pps = dev_get_drvdata(dev);
	77
	78	return sprintf(buf, "%s\n", pps->info.path);
	79	}
bd0eae4e GKH	80	static DEVICE_ATTR_RO(path);
	81
	82	static struct attribute *pps_attrs[] = {
	83	&dev_attr_assert.attr,
	84	&dev_attr_clear.attr,
	85	&dev_attr_mode.attr,
	86	&dev_attr_echo.attr,
	87	&dev_attr_name.attr,
	88	&dev_attr_path.attr,
	89	NULL,
	90	};
	91
	92	static const struct attribute_group pps_group = {
	93	.attrs = pps_attrs,
	94	};
eae9d2ba	95
bd0eae4e GKH	96	const struct attribute_group *pps_groups[] = {
	97	&pps_group,
	98	NULL,
eae9d2ba	99	};