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 #include <linux/fs.h>
  19
  20 #include "zorro.h"
  21
  22
  23 /* show configuration fields */
  24 #define zorro_config_attr(name, field, format_string)                   \
  25 static ssize_t                                                          \
  26 show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
  27 {                                                                       \
  28         struct zorro_dev *z;                                            \
  29                                                                         \
  30         z = to_zorro_dev(dev);                                          \
  31         return sprintf(buf, format_string, z->field);                   \
  32 }                                                                       \
  33 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
  34
  35 zorro_config_attr(id, id, "0x%08x\n");
  36 zorro_config_attr(type, rom.er_Type, "0x%02x\n");
  37 zorro_config_attr(serial, rom.er_SerialNumber, "0x%08x\n");
  38 zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
  39 zorro_config_attr(slotsize, slotsize, "0x%04x\n");
  40
  41 static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
  42 {
  43         struct zorro_dev *z = to_zorro_dev(dev);
  44
  45         return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
  46                        (unsigned long)zorro_resource_start(z),
  47                        (unsigned long)zorro_resource_end(z),
  48                        zorro_resource_flags(z));
  49 }
  50
  51 static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
  52
  53 static ssize_t zorro_read_config(struct kobject *kobj,
  54                                  struct bin_attribute *bin_attr,
  55                                  char *buf, loff_t off, size_t count)
  56 {
  57         struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
  58                                            kobj));
  59         struct ConfigDev cd;
  60
  61         /* Construct a ConfigDev */
  62         memset(&cd, 0, sizeof(cd));
  63         cd.cd_Rom = z->rom;
  64         cd.cd_SlotAddr = z->slotaddr;
  65         cd.cd_SlotSize = z->slotsize;
  66         cd.cd_BoardAddr = (void *)zorro_resource_start(z);
  67         cd.cd_BoardSize = zorro_resource_len(z);
  68
  69         return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
  70 }
  71
  72 static struct bin_attribute zorro_config_attr = {
  73         .attr = {
  74                 .name = "config",
  75                 .mode = S_IRUGO,
  76         },
  77         .size = sizeof(struct ConfigDev),
  78         .read = zorro_read_config,
  79 };
  80
  81 void zorro_create_sysfs_dev_files(struct zorro_dev *z)
  82 {
  83         struct device *dev = &z->dev;
  84
  85         /* current configuration's attributes */
  86         device_create_file(dev, &dev_attr_id);
  87         device_create_file(dev, &dev_attr_type);
  88         device_create_file(dev, &dev_attr_serial);
  89         device_create_file(dev, &dev_attr_slotaddr);
  90         device_create_file(dev, &dev_attr_slotsize);
  91         device_create_file(dev, &dev_attr_resource);
  92         sysfs_create_bin_file(&dev->kobj, &zorro_config_attr);
  93 }
  94