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1/*
2 * Procfs interface for the Zorro bus.
3 *
4 * Copyright (C) 1998-2003 Geert Uytterhoeven
5 *
6 * Heavily based on the procfs interface for the PCI bus, which is
7 *
8 * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
9 */
10
11#include <linux/types.h>
12#include <linux/zorro.h>
13#include <linux/proc_fs.h>
14#include <linux/seq_file.h>
15#include <linux/init.h>
16#include <asm/uaccess.h>
17#include <asm/amigahw.h>
18#include <asm/setup.h>
19
20static loff_t
21proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
22{
23 loff_t new = -1;
24 struct inode *inode = file->f_path.dentry->d_inode;
25
26 mutex_lock(&inode->i_mutex);
27 switch (whence) {
28 case 0:
29 new = off;
30 break;
31 case 1:
32 new = file->f_pos + off;
33 break;
34 case 2:
35 new = sizeof(struct ConfigDev) + off;
36 break;
37 }
38 if (new < 0 || new > sizeof(struct ConfigDev))
39 new = -EINVAL;
40 else
41 file->f_pos = new;
42 mutex_unlock(&inode->i_mutex);
43 return new;
44}
45
46static ssize_t
47proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
48{
49 struct inode *ino = file->f_path.dentry->d_inode;
50 struct proc_dir_entry *dp = PDE(ino);
51 struct zorro_dev *z = dp->data;
52 struct ConfigDev cd;
53 loff_t pos = *ppos;
54
55 if (pos >= sizeof(struct ConfigDev))
56 return 0;
57 if (nbytes >= sizeof(struct ConfigDev))
58 nbytes = sizeof(struct ConfigDev);
59 if (pos + nbytes > sizeof(struct ConfigDev))
60 nbytes = sizeof(struct ConfigDev) - pos;
61
62 /* Construct a ConfigDev */
63 memset(&cd, 0, sizeof(cd));
64 cd.cd_Rom = z->rom;
65 cd.cd_SlotAddr = z->slotaddr;
66 cd.cd_SlotSize = z->slotsize;
67 cd.cd_BoardAddr = (void *)zorro_resource_start(z);
68 cd.cd_BoardSize = zorro_resource_len(z);
69
70 if (copy_to_user(buf, (void *)&cd + pos, nbytes))
71 return -EFAULT;
72 *ppos += nbytes;
73
74 return nbytes;
75}
76
77static const struct file_operations proc_bus_zorro_operations = {
78 .owner = THIS_MODULE,
79 .llseek = proc_bus_zorro_lseek,
80 .read = proc_bus_zorro_read,
81};
82
83static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
84{
85 return (*pos < zorro_num_autocon) ? pos : NULL;
86}
87
88static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
89{
90 (*pos)++;
91 return (*pos < zorro_num_autocon) ? pos : NULL;
92}
93
94static void zorro_seq_stop(struct seq_file *m, void *v)
95{
96}
97
98static int zorro_seq_show(struct seq_file *m, void *v)
99{
100 unsigned int slot = *(loff_t *)v;
101 struct zorro_dev *z = &zorro_autocon[slot];
102
103 seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
104 (unsigned long)zorro_resource_start(z),
105 (unsigned long)zorro_resource_len(z),
106 z->rom.er_Type);
107 return 0;
108}
109
110static const struct seq_operations zorro_devices_seq_ops = {
111 .start = zorro_seq_start,
112 .next = zorro_seq_next,
113 .stop = zorro_seq_stop,
114 .show = zorro_seq_show,
115};
116
117static int zorro_devices_proc_open(struct inode *inode, struct file *file)
118{
119 return seq_open(file, &zorro_devices_seq_ops);
120}
121
122static const struct file_operations zorro_devices_proc_fops = {
123 .owner = THIS_MODULE,
124 .open = zorro_devices_proc_open,
125 .read = seq_read,
126 .llseek = seq_lseek,
127 .release = seq_release,
128};
129
130static struct proc_dir_entry *proc_bus_zorro_dir;
131
132static int __init zorro_proc_attach_device(unsigned int slot)
133{
134 struct proc_dir_entry *entry;
135 char name[4];
136
137 sprintf(name, "%02x", slot);
138 entry = proc_create_data(name, 0, proc_bus_zorro_dir,
139 &proc_bus_zorro_operations,
140 &zorro_autocon[slot]);
141 if (!entry)
142 return -ENOMEM;
143 entry->size = sizeof(struct zorro_dev);
144 return 0;
145}
146
147static int __init zorro_proc_init(void)
148{
149 unsigned int slot;
150
151 if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
152 proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
153 proc_create("devices", 0, proc_bus_zorro_dir,
154 &zorro_devices_proc_fops);
155 for (slot = 0; slot < zorro_num_autocon; slot++)
156 zorro_proc_attach_device(slot);
157 }
158 return 0;
159}
160
161device_initcall(zorro_proc_init);
1/*
2 * Procfs interface for the Zorro bus.
3 *
4 * Copyright (C) 1998-2003 Geert Uytterhoeven
5 *
6 * Heavily based on the procfs interface for the PCI bus, which is
7 *
8 * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
9 */
10
11#include <linux/types.h>
12#include <linux/zorro.h>
13#include <linux/proc_fs.h>
14#include <linux/seq_file.h>
15#include <linux/init.h>
16#include <linux/export.h>
17#include <asm/uaccess.h>
18#include <asm/amigahw.h>
19#include <asm/setup.h>
20
21static loff_t
22proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
23{
24 loff_t new = -1;
25 struct inode *inode = file->f_path.dentry->d_inode;
26
27 mutex_lock(&inode->i_mutex);
28 switch (whence) {
29 case 0:
30 new = off;
31 break;
32 case 1:
33 new = file->f_pos + off;
34 break;
35 case 2:
36 new = sizeof(struct ConfigDev) + off;
37 break;
38 }
39 if (new < 0 || new > sizeof(struct ConfigDev))
40 new = -EINVAL;
41 else
42 file->f_pos = new;
43 mutex_unlock(&inode->i_mutex);
44 return new;
45}
46
47static ssize_t
48proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
49{
50 struct inode *ino = file->f_path.dentry->d_inode;
51 struct proc_dir_entry *dp = PDE(ino);
52 struct zorro_dev *z = dp->data;
53 struct ConfigDev cd;
54 loff_t pos = *ppos;
55
56 if (pos >= sizeof(struct ConfigDev))
57 return 0;
58 if (nbytes >= sizeof(struct ConfigDev))
59 nbytes = sizeof(struct ConfigDev);
60 if (pos + nbytes > sizeof(struct ConfigDev))
61 nbytes = sizeof(struct ConfigDev) - pos;
62
63 /* Construct a ConfigDev */
64 memset(&cd, 0, sizeof(cd));
65 cd.cd_Rom = z->rom;
66 cd.cd_SlotAddr = z->slotaddr;
67 cd.cd_SlotSize = z->slotsize;
68 cd.cd_BoardAddr = (void *)zorro_resource_start(z);
69 cd.cd_BoardSize = zorro_resource_len(z);
70
71 if (copy_to_user(buf, (void *)&cd + pos, nbytes))
72 return -EFAULT;
73 *ppos += nbytes;
74
75 return nbytes;
76}
77
78static const struct file_operations proc_bus_zorro_operations = {
79 .owner = THIS_MODULE,
80 .llseek = proc_bus_zorro_lseek,
81 .read = proc_bus_zorro_read,
82};
83
84static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
85{
86 return (*pos < zorro_num_autocon) ? pos : NULL;
87}
88
89static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
90{
91 (*pos)++;
92 return (*pos < zorro_num_autocon) ? pos : NULL;
93}
94
95static void zorro_seq_stop(struct seq_file *m, void *v)
96{
97}
98
99static int zorro_seq_show(struct seq_file *m, void *v)
100{
101 unsigned int slot = *(loff_t *)v;
102 struct zorro_dev *z = &zorro_autocon[slot];
103
104 seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
105 (unsigned long)zorro_resource_start(z),
106 (unsigned long)zorro_resource_len(z),
107 z->rom.er_Type);
108 return 0;
109}
110
111static const struct seq_operations zorro_devices_seq_ops = {
112 .start = zorro_seq_start,
113 .next = zorro_seq_next,
114 .stop = zorro_seq_stop,
115 .show = zorro_seq_show,
116};
117
118static int zorro_devices_proc_open(struct inode *inode, struct file *file)
119{
120 return seq_open(file, &zorro_devices_seq_ops);
121}
122
123static const struct file_operations zorro_devices_proc_fops = {
124 .owner = THIS_MODULE,
125 .open = zorro_devices_proc_open,
126 .read = seq_read,
127 .llseek = seq_lseek,
128 .release = seq_release,
129};
130
131static struct proc_dir_entry *proc_bus_zorro_dir;
132
133static int __init zorro_proc_attach_device(unsigned int slot)
134{
135 struct proc_dir_entry *entry;
136 char name[4];
137
138 sprintf(name, "%02x", slot);
139 entry = proc_create_data(name, 0, proc_bus_zorro_dir,
140 &proc_bus_zorro_operations,
141 &zorro_autocon[slot]);
142 if (!entry)
143 return -ENOMEM;
144 entry->size = sizeof(struct zorro_dev);
145 return 0;
146}
147
148static int __init zorro_proc_init(void)
149{
150 unsigned int slot;
151
152 if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
153 proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
154 proc_create("devices", 0, proc_bus_zorro_dir,
155 &zorro_devices_proc_fops);
156 for (slot = 0; slot < zorro_num_autocon; slot++)
157 zorro_proc_attach_device(slot);
158 }
159 return 0;
160}
161
162device_initcall(zorro_proc_init);