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(container_of(kobj, struct device,
69					   kobj));
70	struct ConfigDev cd;
71
72	/* Construct a ConfigDev */
73	memset(&cd, 0, sizeof(cd));
74	cd.cd_Rom = z->rom;
75	cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
76	cd.cd_SlotSize = cpu_to_be16(z->slotsize);
77	cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
78	cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
79
80	return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
81}
82
83static struct bin_attribute zorro_config_attr = {
84	.attr =	{
85		.name = "config",
86		.mode = S_IRUGO,
87	},
88	.size = sizeof(struct ConfigDev),
89	.read = zorro_read_config,
90};
91
92static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
93			     char *buf)
94{
95	struct zorro_dev *z = to_zorro_dev(dev);
96
97	return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
98}
99
100static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
101
102int zorro_create_sysfs_dev_files(struct zorro_dev *z)
103{
104	struct device *dev = &z->dev;
105	int error;
106
107	/* current configuration's attributes */
108	if ((error = device_create_file(dev, &dev_attr_id)) ||
109	    (error = device_create_file(dev, &dev_attr_type)) ||
110	    (error = device_create_file(dev, &dev_attr_serial)) ||
111	    (error = device_create_file(dev, &dev_attr_slotaddr)) ||
112	    (error = device_create_file(dev, &dev_attr_slotsize)) ||
113	    (error = device_create_file(dev, &dev_attr_resource)) ||
114	    (error = device_create_file(dev, &dev_attr_modalias)) ||
115	    (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
116		return error;
117
118	return 0;
119}
120
121