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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
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);
162
