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)                   \
  26 static 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 }                                                                       \
  34 static DEVICE_ATTR_RO(name);
  35
  36 zorro_config_attr(id, id, "0x%08x\n");
  37 zorro_config_attr(type, rom.er_Type, "0x%02x\n");
  38 zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
  39 zorro_config_attr(slotsize, slotsize, "0x%04x\n");
  40
  41 static 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 }
  49 static DEVICE_ATTR_RO(serial);
  50
  51 static 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 }
  61 static DEVICE_ATTR_RO(resource);
  62
  63 static 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 }
  70 static DEVICE_ATTR_RO(modalias);
  71
  72 static 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
  83 static 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
 101 static 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
 110 static struct bin_attribute *zorro_device_bin_attrs[] = {
 111         &zorro_config_attr,
 112         NULL
 113 };
 114
 115 static const struct attribute_group zorro_device_attr_group = {
 116         .attrs          = zorro_device_attrs,
 117         .bin_attrs      = zorro_device_bin_attrs,
 118 };
 119
 120 const struct attribute_group *zorro_device_attribute_groups[] = {
 121         &zorro_device_attr_group,
 122         NULL
 123 };