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 "zorro.h"
  20
  21
  22/* show configuration fields */
  23#define zorro_config_attr(name, field, format_string)                   \
  24static ssize_t                                                          \
  25show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
  26{                                                                       \
  27        struct zorro_dev *z;                                            \
  28                                                                        \
  29        z = to_zorro_dev(dev);                                          \
  30        return sprintf(buf, format_string, z->field);                   \
  31}                                                                       \
  32static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
  33
  34zorro_config_attr(id, id, "0x%08x\n");
  35zorro_config_attr(type, rom.er_Type, "0x%02x\n");
  36zorro_config_attr(serial, rom.er_SerialNumber, "0x%08x\n");
  37zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
  38zorro_config_attr(slotsize, slotsize, "0x%04x\n");
  39
  40static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
  41{
  42        struct zorro_dev *z = to_zorro_dev(dev);
  43
  44        return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
  45                       (unsigned long)zorro_resource_start(z),
  46                       (unsigned long)zorro_resource_end(z),
  47                       zorro_resource_flags(z));
  48}
  49
  50static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
  51
  52static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
  53                                 struct bin_attribute *bin_attr,
  54                                 char *buf, loff_t off, size_t count)
  55{
  56        struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
  57                                           kobj));
  58        struct ConfigDev cd;
  59
  60        /* Construct a ConfigDev */
  61        memset(&cd, 0, sizeof(cd));
  62        cd.cd_Rom = z->rom;
  63        cd.cd_SlotAddr = z->slotaddr;
  64        cd.cd_SlotSize = z->slotsize;
  65        cd.cd_BoardAddr = (void *)zorro_resource_start(z);
  66        cd.cd_BoardSize = zorro_resource_len(z);
  67
  68        return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
  69}
  70
  71static struct bin_attribute zorro_config_attr = {
  72        .attr = {
  73                .name = "config",
  74                .mode = S_IRUGO,
  75        },
  76        .size = sizeof(struct ConfigDev),
  77        .read = zorro_read_config,
  78};
  79
  80static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
  81                             char *buf)
  82{
  83        struct zorro_dev *z = to_zorro_dev(dev);
  84
  85        return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
  86}
  87
  88static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
  89
  90int zorro_create_sysfs_dev_files(struct zorro_dev *z)
  91{
  92        struct device *dev = &z->dev;
  93        int error;
  94
  95        /* current configuration's attributes */
  96        if ((error = device_create_file(dev, &dev_attr_id)) ||
  97            (error = device_create_file(dev, &dev_attr_type)) ||
  98            (error = device_create_file(dev, &dev_attr_serial)) ||
  99            (error = device_create_file(dev, &dev_attr_slotaddr)) ||
 100            (error = device_create_file(dev, &dev_attr_slotsize)) ||
 101            (error = device_create_file(dev, &dev_attr_resource)) ||
 102            (error = device_create_file(dev, &dev_attr_modalias)) ||
 103            (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
 104                return error;
 105
 106        return 0;
 107}
 108
 109