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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 <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_inode(file);
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 zorro_dev *z = PDE_DATA(file_inode(file));
51 struct ConfigDev cd;
52 loff_t pos = *ppos;
53
54 if (pos >= sizeof(struct ConfigDev))
55 return 0;
56 if (nbytes >= sizeof(struct ConfigDev))
57 nbytes = sizeof(struct ConfigDev);
58 if (pos + nbytes > sizeof(struct ConfigDev))
59 nbytes = sizeof(struct ConfigDev) - pos;
60
61
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 if (copy_to_user(buf, (void *)&cd + pos, nbytes))
70 return -EFAULT;
71 *ppos += nbytes;
72
73 return nbytes;
74}
75
76static const struct file_operations proc_bus_zorro_operations = {
77 .owner = THIS_MODULE,
78 .llseek = proc_bus_zorro_lseek,
79 .read = proc_bus_zorro_read,
80};
81
82static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
83{
84 return (*pos < zorro_num_autocon) ? pos : NULL;
85}
86
87static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
88{
89 (*pos)++;
90 return (*pos < zorro_num_autocon) ? pos : NULL;
91}
92
93static void zorro_seq_stop(struct seq_file *m, void *v)
94{
95}
96
97static int zorro_seq_show(struct seq_file *m, void *v)
98{
99 unsigned int slot = *(loff_t *)v;
100 struct zorro_dev *z = &zorro_autocon[slot];
101
102 seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
103 (unsigned long)zorro_resource_start(z),
104 (unsigned long)zorro_resource_len(z),
105 z->rom.er_Type);
106 return 0;
107}
108
109static const struct seq_operations zorro_devices_seq_ops = {
110 .start = zorro_seq_start,
111 .next = zorro_seq_next,
112 .stop = zorro_seq_stop,
113 .show = zorro_seq_show,
114};
115
116static int zorro_devices_proc_open(struct inode *inode, struct file *file)
117{
118 return seq_open(file, &zorro_devices_seq_ops);
119}
120
121static const struct file_operations zorro_devices_proc_fops = {
122 .owner = THIS_MODULE,
123 .open = zorro_devices_proc_open,
124 .read = seq_read,
125 .llseek = seq_lseek,
126 .release = seq_release,
127};
128
129static struct proc_dir_entry *proc_bus_zorro_dir;
130
131static int __init zorro_proc_attach_device(unsigned int slot)
132{
133 struct proc_dir_entry *entry;
134 char name[4];
135
136 sprintf(name, "%02x", slot);
137 entry = proc_create_data(name, 0, proc_bus_zorro_dir,
138 &proc_bus_zorro_operations,
139 &zorro_autocon[slot]);
140 if (!entry)
141 return -ENOMEM;
142 proc_set_size(entry, sizeof(struct zorro_dev));
143 return 0;
144}
145
146static int __init zorro_proc_init(void)
147{
148 unsigned int slot;
149
150 if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
151 proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
152 proc_create("devices", 0, proc_bus_zorro_dir,
153 &zorro_devices_proc_fops);
154 for (slot = 0; slot < zorro_num_autocon; slot++)
155 zorro_proc_attach_device(slot);
156 }
157 return 0;
158}
159
160device_initcall(zorro_proc_init);
161
