Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 *  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 "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(serial, rom.er_SerialNumber, "0x%08x\n");

zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");

zorro_config_attr(slotsize, slotsize, "0x%04x\n");

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 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;

        unsigned int size = sizeof(cd);

        if (off > size)

                return 0;

        if (off+count > size)

                count = size-off;

        /* Construct a ConfigDev */

        memset(&cd, 0, sizeof(cd));

        cd.cd_Rom = z->rom;

        cd.cd_SlotAddr = z->slotaddr;

        cd.cd_SlotSize = z->slotsize;

        cd.cd_BoardAddr = (void *)zorro_resource_start(z);

        cd.cd_BoardSize = zorro_resource_len(z);

        memcpy(buf, (void *)&cd+off, count);

        return count;

}

static struct bin_attribute zorro_config_attr = {

        .attr = {

                .name = "config",

                .mode = S_IRUGO,

        },

        .size = sizeof(struct ConfigDev),

        .read = zorro_read_config,

};

void zorro_create_sysfs_dev_files(struct zorro_dev *z)

{

        struct device *dev = &z->dev;

        /* current configuration's attributes */

        device_create_file(dev, &dev_attr_id);

        device_create_file(dev, &dev_attr_type);

        device_create_file(dev, &dev_attr_serial);

        device_create_file(dev, &dev_attr_slotaddr);

        device_create_file(dev, &dev_attr_slotsize);

        device_create_file(dev, &dev_attr_resource);

        sysfs_create_bin_file(&dev->kobj, &zorro_config_attr);

}