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greybus: split sysfs functions out to separate file.

This commit is contained in:
Greg Kroah-Hartman 2014-09-01 19:05:54 -07:00
parent e24e7257b1
commit 06340efb7c
4 changed files with 169 additions and 147 deletions
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1
drivers/staging/greybus/Makefile
View File

@ -1,5 +1,6 @@
greybus-y := core.o \
gbuf.o \
sysfs.o \
debugfs.o \
ap.o \
i2c-gb.o \

147
drivers/staging/greybus/core.c
View File

@ -190,153 +190,6 @@ static struct device_type greybus_module_type = {
.release = greybus_module_release,
};
/* Function fields */
#define greybus_function_attr(field) \
static ssize_t function_##field##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct greybus_device *gdev = to_greybus_device(dev); \
return sprintf(buf, "%d\n", gdev->function.field); \
} \
static DEVICE_ATTR_RO(function_##field)
greybus_function_attr(number);
greybus_function_attr(cport);
greybus_function_attr(class);
greybus_function_attr(subclass);
greybus_function_attr(protocol);
static struct attribute *function_attrs[] = {
&dev_attr_function_number.attr,
&dev_attr_function_cport.attr,
&dev_attr_function_class.attr,
&dev_attr_function_subclass.attr,
&dev_attr_function_protocol.attr,
NULL,
};
static umode_t function_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct greybus_device *gdev = to_greybus_device(kobj_to_dev(kobj));
// FIXME - make this a dynamic structure to "know" if it really is here
// or not easier?
if (gdev->function.number ||
gdev->function.cport ||
gdev->function.class ||
gdev->function.subclass ||
gdev->function.protocol)
return a->mode;
return 0;
}
static struct attribute_group function_attr_grp = {
.attrs = function_attrs,
.is_visible = function_attrs_are_visible,
};
/* Module fields */
#define greybus_module_attr(field) \
static ssize_t module_##field##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct greybus_device *gdev = to_greybus_device(dev); \
return sprintf(buf, "%x\n", gdev->module_id.field); \
} \
static DEVICE_ATTR_RO(module_##field)
greybus_module_attr(vendor);
greybus_module_attr(product);
greybus_module_attr(version);
static ssize_t module_vendor_string_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%s",
greybus_string(gdev, gdev->module_id.vendor_stringid));
}
static DEVICE_ATTR_RO(module_vendor_string);
static ssize_t module_product_string_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%s",
greybus_string(gdev, gdev->module_id.product_stringid));
}
static DEVICE_ATTR_RO(module_product_string);
static struct attribute *module_attrs[] = {
&dev_attr_module_vendor.attr,
&dev_attr_module_product.attr,
&dev_attr_module_version.attr,
&dev_attr_module_vendor_string.attr,
&dev_attr_module_product_string.attr,
NULL,
};
static umode_t module_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct greybus_device *gdev = to_greybus_device(kobj_to_dev(kobj));
if ((a == &dev_attr_module_vendor_string.attr) &&
(gdev->module_id.vendor_stringid))
return a->mode;
if ((a == &dev_attr_module_product_string.attr) &&
(gdev->module_id.product_stringid))
return a->mode;
// FIXME - make this a dynamic structure to "know" if it really is here
// or not easier?
if (gdev->module_id.vendor ||
gdev->module_id.product ||
gdev->module_id.version)
return a->mode;
return 0;
}
static struct attribute_group module_attr_grp = {
.attrs = module_attrs,
.is_visible = module_attrs_are_visible,
};
/* Serial Number */
static ssize_t serial_number_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%llX\n",
(unsigned long long)gdev->serial_number.serial_number);
}
static DEVICE_ATTR_RO(serial_number);
static struct attribute *serial_number_attrs[] = {
&dev_attr_serial_number.attr,
NULL,
};
static struct attribute_group serial_number_attr_grp = {
.attrs = serial_number_attrs,
.is_visible = function_attrs_are_visible,
};
static const struct attribute_group *greybus_module_groups[] = {
&function_attr_grp,
&module_attr_grp,
&serial_number_attr_grp,
NULL,
};
static int gb_init_subdevs(struct greybus_device *gdev,
const struct greybus_module_id *id)
{

2
drivers/staging/greybus/greybus.h
View File

@ -188,6 +188,8 @@ void gb_thread_destroy(void);
int gb_debugfs_init(void);
void gb_debugfs_cleanup(void);
extern const struct attribute_group *greybus_module_groups[];
/*
* Because we are allocating a data structure per "type" in the greybus device,
* we have static functions for this, not "dynamic" drivers like we really

166
drivers/staging/greybus/sysfs.c Normal file
View File

@ -0,0 +1,166 @@
/*
* Greybus sysfs file functions
*
* Copyright 2014 Google Inc.
*
* Released under the GPLv2 only.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/types.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/device.h>
#include "greybus.h"
/* Function fields */
#define greybus_function_attr(field) \
static ssize_t function_##field##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct greybus_device *gdev = to_greybus_device(dev); \
return sprintf(buf, "%d\n", gdev->function.field); \
} \
static DEVICE_ATTR_RO(function_##field)
greybus_function_attr(number);
greybus_function_attr(cport);
greybus_function_attr(class);
greybus_function_attr(subclass);
greybus_function_attr(protocol);
static struct attribute *function_attrs[] = {
&dev_attr_function_number.attr,
&dev_attr_function_cport.attr,
&dev_attr_function_class.attr,
&dev_attr_function_subclass.attr,
&dev_attr_function_protocol.attr,
NULL,
};
static umode_t function_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct greybus_device *gdev = to_greybus_device(kobj_to_dev(kobj));
// FIXME - make this a dynamic structure to "know" if it really is here
// or not easier?
if (gdev->function.number ||
gdev->function.cport ||
gdev->function.class ||
gdev->function.subclass ||
gdev->function.protocol)
return a->mode;
return 0;
}
static struct attribute_group function_attr_grp = {
.attrs = function_attrs,
.is_visible = function_attrs_are_visible,
};
/* Module fields */
#define greybus_module_attr(field) \
static ssize_t module_##field##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct greybus_device *gdev = to_greybus_device(dev); \
return sprintf(buf, "%x\n", gdev->module_id.field); \
} \
static DEVICE_ATTR_RO(module_##field)
greybus_module_attr(vendor);
greybus_module_attr(product);
greybus_module_attr(version);
static ssize_t module_vendor_string_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%s",
greybus_string(gdev, gdev->module_id.vendor_stringid));
}
static DEVICE_ATTR_RO(module_vendor_string);
static ssize_t module_product_string_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%s",
greybus_string(gdev, gdev->module_id.product_stringid));
}
static DEVICE_ATTR_RO(module_product_string);
static struct attribute *module_attrs[] = {
&dev_attr_module_vendor.attr,
&dev_attr_module_product.attr,
&dev_attr_module_version.attr,
&dev_attr_module_vendor_string.attr,
&dev_attr_module_product_string.attr,
NULL,
};
static umode_t module_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct greybus_device *gdev = to_greybus_device(kobj_to_dev(kobj));
if ((a == &dev_attr_module_vendor_string.attr) &&
(gdev->module_id.vendor_stringid))
return a->mode;
if ((a == &dev_attr_module_product_string.attr) &&
(gdev->module_id.product_stringid))
return a->mode;
// FIXME - make this a dynamic structure to "know" if it really is here
// or not easier?
if (gdev->module_id.vendor ||
gdev->module_id.product ||
gdev->module_id.version)
return a->mode;
return 0;
}
static struct attribute_group module_attr_grp = {
.attrs = module_attrs,
.is_visible = module_attrs_are_visible,
};
/* Serial Number */
static ssize_t serial_number_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct greybus_device *gdev = to_greybus_device(dev);
return sprintf(buf, "%llX\n",
(unsigned long long)gdev->serial_number.serial_number);
}
static DEVICE_ATTR_RO(serial_number);
static struct attribute *serial_number_attrs[] = {
&dev_attr_serial_number.attr,
NULL,
};
static struct attribute_group serial_number_attr_grp = {
.attrs = serial_number_attrs,
.is_visible = function_attrs_are_visible,
};
const struct attribute_group *greybus_module_groups[] = {
&function_attr_grp,
&module_attr_grp,
&serial_number_attr_grp,
NULL,
};