/*
 *  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 name##_show(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_RO(name);

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 serial_show(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_RO(serial);

static ssize_t resource_show(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_RO(resource);

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_RO(modalias);

static struct attribute *zorro_device_attrs[] = {
        &dev_attr_id.attr,
        &dev_attr_type.attr,
        &dev_attr_serial.attr,
        &dev_attr_slotaddr.attr,
        &dev_attr_slotsize.attr,
        &dev_attr_resource.attr,
        &dev_attr_modalias.attr,
        NULL
};

static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
                                 const struct bin_attribute *bin_attr,
                                 char *buf, loff_t off, size_t count)
{
        struct zorro_dev *z = to_zorro_dev(kobj_to_dev(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 const struct bin_attribute zorro_config_attr = {
        .attr = {
                .name = "config",
                .mode = S_IRUGO,
        },
        .size = sizeof(struct ConfigDev),
        .read = zorro_read_config,
};

static const struct bin_attribute *const zorro_device_bin_attrs[] = {
        &zorro_config_attr,
        NULL
};

static const struct attribute_group zorro_device_attr_group = {
        .attrs          = zorro_device_attrs,
        .bin_attrs      = zorro_device_bin_attrs,
};

const struct attribute_group *zorro_device_attribute_groups[] = {
        &zorro_device_attr_group,
        NULL
};