zorro-sysfs.c
3.36 KB
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/*
* File Attributes for Zorro Devices
*
* Copyright (C) 2003 Geert Uytterhoeven
*
* Loosely based on drivers/pci/pci-sysfs.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/kernel.h>
#include <linux/zorro.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <asm/byteorder.h>
#include "zorro.h"
/* show configuration fields */
#define zorro_config_attr(name, field, format_string) \
static ssize_t \
show_##name(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct zorro_dev *z; \
\
z = to_zorro_dev(dev); \
return sprintf(buf, format_string, z->field); \
} \
static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
zorro_config_attr(id, id, "0x%08x\n");
zorro_config_attr(type, rom.er_Type, "0x%02x\n");
zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
zorro_config_attr(slotsize, slotsize, "0x%04x\n");
static ssize_t
show_serial(struct device *dev, struct device_attribute *attr, char *buf)
{
struct zorro_dev *z;
z = to_zorro_dev(dev);
return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber));
}
static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
{
struct zorro_dev *z = to_zorro_dev(dev);
return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
(unsigned long)zorro_resource_start(z),
(unsigned long)zorro_resource_end(z),
zorro_resource_flags(z));
}
static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
kobj));
struct ConfigDev cd;
/* Construct a ConfigDev */
memset(&cd, 0, sizeof(cd));
cd.cd_Rom = z->rom;
cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
cd.cd_SlotSize = cpu_to_be16(z->slotsize);
cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
}
static struct bin_attribute zorro_config_attr = {
.attr = {
.name = "config",
.mode = S_IRUGO,
},
.size = sizeof(struct ConfigDev),
.read = zorro_read_config,
};
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct zorro_dev *z = to_zorro_dev(dev);
return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
}
static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
int zorro_create_sysfs_dev_files(struct zorro_dev *z)
{
struct device *dev = &z->dev;
int error;
/* current configuration's attributes */
if ((error = device_create_file(dev, &dev_attr_id)) ||
(error = device_create_file(dev, &dev_attr_type)) ||
(error = device_create_file(dev, &dev_attr_serial)) ||
(error = device_create_file(dev, &dev_attr_slotaddr)) ||
(error = device_create_file(dev, &dev_attr_slotsize)) ||
(error = device_create_file(dev, &dev_attr_resource)) ||
(error = device_create_file(dev, &dev_attr_modalias)) ||
(error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
return error;
return 0;
}