2 * Procfs interface for the Zorro bus.
4 * Copyright (C) 1998-2003 Geert Uytterhoeven
6 * Heavily based on the procfs interface for the PCI bus, which is
8 * Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
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>
18 #include <asm/byteorder.h>
19 #include <asm/uaccess.h>
20 #include <asm/amigahw.h>
21 #include <asm/setup.h>
24 proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
26 return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev));
30 proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
32 struct zorro_dev *z = PDE_DATA(file_inode(file));
36 if (pos >= sizeof(struct ConfigDev))
38 if (nbytes >= sizeof(struct ConfigDev))
39 nbytes = sizeof(struct ConfigDev);
40 if (pos + nbytes > sizeof(struct ConfigDev))
41 nbytes = sizeof(struct ConfigDev) - pos;
43 /* Construct a ConfigDev */
44 memset(&cd, 0, sizeof(cd));
46 cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
47 cd.cd_SlotSize = cpu_to_be16(z->slotsize);
48 cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
49 cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
51 if (copy_to_user(buf, (void *)&cd + pos, nbytes))
58 static const struct file_operations proc_bus_zorro_operations = {
60 .llseek = proc_bus_zorro_lseek,
61 .read = proc_bus_zorro_read,
64 static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
66 return (*pos < zorro_num_autocon) ? pos : NULL;
69 static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
72 return (*pos < zorro_num_autocon) ? pos : NULL;
75 static void zorro_seq_stop(struct seq_file *m, void *v)
79 static int zorro_seq_show(struct seq_file *m, void *v)
81 unsigned int slot = *(loff_t *)v;
82 struct zorro_dev *z = &zorro_autocon[slot];
84 seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
85 (unsigned long)zorro_resource_start(z),
86 (unsigned long)zorro_resource_len(z),
91 static const struct seq_operations zorro_devices_seq_ops = {
92 .start = zorro_seq_start,
93 .next = zorro_seq_next,
94 .stop = zorro_seq_stop,
95 .show = zorro_seq_show,
98 static int zorro_devices_proc_open(struct inode *inode, struct file *file)
100 return seq_open(file, &zorro_devices_seq_ops);
103 static const struct file_operations zorro_devices_proc_fops = {
104 .owner = THIS_MODULE,
105 .open = zorro_devices_proc_open,
108 .release = seq_release,
111 static struct proc_dir_entry *proc_bus_zorro_dir;
113 static int __init zorro_proc_attach_device(unsigned int slot)
115 struct proc_dir_entry *entry;
118 sprintf(name, "%02x", slot);
119 entry = proc_create_data(name, 0, proc_bus_zorro_dir,
120 &proc_bus_zorro_operations,
121 &zorro_autocon[slot]);
124 proc_set_size(entry, sizeof(struct zorro_dev));
128 static int __init zorro_proc_init(void)
132 if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
133 proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
134 proc_create("devices", 0, proc_bus_zorro_dir,
135 &zorro_devices_proc_fops);
136 for (slot = 0; slot < zorro_num_autocon; slot++)
137 zorro_proc_attach_device(slot);
142 device_initcall(zorro_proc_init);