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 name##_show(struct device *dev,                          \
  27                           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_RO(name);
  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 serial_show(struct device *dev, struct device_attribute *attr,
  42                           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}
  49static DEVICE_ATTR_RO(serial);
  50
  51static ssize_t resource_show(struct device *dev, struct device_attribute *attr,
  52                             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}
  61static DEVICE_ATTR_RO(resource);
  62
  63static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
  64                             char *buf)
  65{
  66        struct zorro_dev *z = to_zorro_dev(dev);
  67
  68        return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
  69}
  70static DEVICE_ATTR_RO(modalias);
  71
  72static struct attribute *zorro_device_attrs[] = {
  73        &dev_attr_id.attr,
  74        &dev_attr_type.attr,
  75        &dev_attr_serial.attr,
  76        &dev_attr_slotaddr.attr,
  77        &dev_attr_slotsize.attr,
  78        &dev_attr_resource.attr,
  79        &dev_attr_modalias.attr,
  80        NULL
  81};
  82
  83static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
  84                                 struct bin_attribute *bin_attr,
  85                                 char *buf, loff_t off, size_t count)
  86{
  87        struct zorro_dev *z = to_zorro_dev(kobj_to_dev(kobj));
  88        struct ConfigDev cd;
  89
  90        /* Construct a ConfigDev */
  91        memset(&cd, 0, sizeof(cd));
  92        cd.cd_Rom = z->rom;
  93        cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
  94        cd.cd_SlotSize = cpu_to_be16(z->slotsize);
  95        cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
  96        cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
  97
  98        return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
  99}
 100
 101static struct bin_attribute zorro_config_attr = {
 102        .attr = {
 103                .name = "config",
 104                .mode = S_IRUGO,
 105        },
 106        .size = sizeof(struct ConfigDev),
 107        .read = zorro_read_config,
 108};
 109
 110static struct bin_attribute *zorro_device_bin_attrs[] = {
 111        &zorro_config_attr,
 112        NULL
 113};
 114
 115static const struct attribute_group zorro_device_attr_group = {
 116        .attrs          = zorro_device_attrs,
 117        .bin_attrs      = zorro_device_bin_attrs,
 118};
 119
 120const struct attribute_group *zorro_device_attribute_groups[] = {
 121        &zorro_device_attr_group,
 122        NULL
 123};
 124