LXR linux/drivers/zorro/zorro-sysfs.c

   1/*
   2 *  File Attributes for Zorro Devices
   3 *
   4 *  Copyright (C) 2003 Geert Uytterhoeven
   5 *
   6 *  Loosely based on drivers/pci/pci-sysfs.c
   7 *
   8 *  This file is subject to the terms and conditions of the GNU General Public
   9 *  License.  See the file COPYING in the main directory of this archive
  10 *  for more details.
  11 */
  12
  13
  14#include <linux/kernel.h>
  15#include <linux/zorro.h>
  16#include <linux/stat.h>
  17#include <linux/string.h>
  18
  19#include <asm/byteorder.h>
  20
  21#include "zorro.h"
  22
  23
  24/* show configuration fields */
  25#define zorro_config_attr(name, field, format_string)                   \
  26static ssize_t                                                          \
  27show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
  28{                                                                       \
  29        struct zorro_dev *z;                                            \
  30                                                                        \
  31        z = to_zorro_dev(dev);                                          \
  32        return sprintf(buf, format_string, z->field);                   \
  33}                                                                       \
  34static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
  35
  36zorro_config_attr(id, id, "0x%08x\n");
  37zorro_config_attr(type, rom.er_Type, "0x%02x\n");
  38zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
  39zorro_config_attr(slotsize, slotsize, "0x%04x\n");
  40
  41static ssize_t
  42show_serial(struct device *dev, struct device_attribute *attr, char *buf)
  43{
  44        struct zorro_dev *z;
  45
  46        z = to_zorro_dev(dev);
  47        return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber));
  48}
  49
  50static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
  51
  52static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
  53{
  54        struct zorro_dev *z = to_zorro_dev(dev);
  55
  56        return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
  57                       (unsigned long)zorro_resource_start(z),
  58                       (unsigned long)zorro_resource_end(z),
  59                       zorro_resource_flags(z));
  60}
  61
  62static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
  63
  64static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
  65                                 struct bin_attribute *bin_attr,
  66                                 char *buf, loff_t off, size_t count)
  67{
  68        struct zorro_dev *z = to_zorro_dev(kobj_to_dev(kobj));
  69        struct ConfigDev cd;
  70
  71        /* Construct a ConfigDev */
  72        memset(&cd, 0, sizeof(cd));
  73        cd.cd_Rom = z->rom;
  74        cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
  75        cd.cd_SlotSize = cpu_to_be16(z->slotsize);
  76        cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
  77        cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
  78
  79        return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
  80}
  81
  82static struct bin_attribute zorro_config_attr = {
  83        .attr = {
  84                .name = "config",
  85                .mode = S_IRUGO,
  86        },
  87        .size = sizeof(struct ConfigDev),
  88        .read = zorro_read_config,
  89};
  90
  91static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
  92                             char *buf)
  93{
  94        struct zorro_dev *z = to_zorro_dev(dev);
  95
  96        return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
  97}
  98
  99static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
 100
 101int zorro_create_sysfs_dev_files(struct zorro_dev *z)
 102{
 103        struct device *dev = &z->dev;
 104        int error;
 105
 106        /* current configuration's attributes */
 107        if ((error = device_create_file(dev, &dev_attr_id)) ||
 108            (error = device_create_file(dev, &dev_attr_type)) ||
 109            (error = device_create_file(dev, &dev_attr_serial)) ||
 110            (error = device_create_file(dev, &dev_attr_slotaddr)) ||
 111            (error = device_create_file(dev, &dev_attr_slotsize)) ||
 112            (error = device_create_file(dev, &dev_attr_resource)) ||
 113            (error = device_create_file(dev, &dev_attr_modalias)) ||
 114            (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
 115                return error;
 116
 117        return 0;
 118}
 119
 120