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/*
* $Id: proc.c,v 1.1.2.1 1998/06/07 23:21:01 geert Exp $
*
* Procfs interface for the Zorro bus.
*
* Copyright (C) 1998 Geert Uytterhoeven
*
* Heavily based on the procfs interface for the PCI bus, which is
*
* Copyright (C) 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*/
#include <linux/types.h>
#include <linux/zorro.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/amigahw.h>
#include <asm/setup.h>
static loff_t
proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
{
loff_t new;
switch (whence) {
case 0:
new = off;
break;
case 1:
new = file->f_pos + off;
break;
case 2:
new = sizeof(struct ConfigDev) + off;
break;
default:
return -EINVAL;
}
if (new < 0 || new > sizeof(struct ConfigDev))
return -EINVAL;
return (file->f_pos = new);
}
static ssize_t
proc_bus_zorro_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos)
{
struct inode *ino = file->f_dentry->d_inode;
struct proc_dir_entry *dp = ino->u.generic_ip;
struct ConfigDev *cd = dp->data;
int pos = *ppos;
if (pos >= sizeof(struct ConfigDev))
return 0;
if (nbytes >= sizeof(struct ConfigDev))
nbytes = sizeof(struct ConfigDev);
if (pos + nbytes > sizeof(struct ConfigDev))
nbytes = sizeof(struct ConfigDev) - pos;
if (copy_to_user(buf, cd, nbytes))
return -EFAULT;
*ppos += nbytes;
return nbytes;
}
static struct file_operations proc_bus_zorro_operations = {
proc_bus_zorro_lseek,
proc_bus_zorro_read,
NULL, /* write */
NULL, /* readdir */
NULL, /* poll */
NULL, /* ioctl */
NULL, /* mmap */
NULL, /* no special open code */
NULL, /* flush */
NULL, /* no special release code */
NULL /* can't fsync */
};
static struct inode_operations proc_bus_zorro_inode_operations = {
&proc_bus_zorro_operations, /* default base directory file-ops */
NULL, /* create */
NULL, /* lookup */
NULL, /* link */
NULL, /* unlink */
NULL, /* symlink */
NULL, /* mkdir */
NULL, /* rmdir */
NULL, /* mknod */
NULL, /* rename */
NULL, /* readlink */
NULL, /* follow_link */
NULL, /* get_block */
NULL, /* readpage */
NULL, /* writepage */
NULL, /* flushpage */
NULL, /* truncate */
NULL, /* permission */
NULL, /* smap */
NULL /* revalidate */
};
int
get_zorro_dev_info(char *buf, char **start, off_t pos, int count, int wr)
{
u_int slot;
off_t at = 0;
int len, cnt;
for (slot = cnt = 0; slot < zorro_num_autocon && count > cnt; slot++) {
struct ConfigDev *cd = &zorro_autocon[slot];
u16 manuf = cd->cd_Rom.er_Manufacturer;
u8 prod = cd->cd_Rom.er_Product;
u8 epc;
if (manuf == ZORRO_MANUF(ZORRO_PROD_GVP_EPC_BASE) &&
prod == ZORRO_PROD(ZORRO_PROD_GVP_EPC_BASE)) {
/* GVP quirk */
u32 addr = (u32)cd->cd_BoardAddr;
epc = (*(u16 *)ZTWO_VADDR(addr+0x8000)) & GVP_PRODMASK;
} else
epc = 0;
len = sprintf(buf, "%02x\t%04x%02x%02x\t%08x\t%08x\t%02x\n",
slot, manuf, prod, epc, (u32)cd->cd_BoardAddr,
cd->cd_BoardSize, cd->cd_Rom.er_Type);
at += len;
if (at >= pos) {
if (!*start) {
*start = buf + (pos - (at - len));
cnt = at - pos;
} else
cnt += len;
buf += len;
}
}
return (count > cnt) ? cnt : count;
}
static struct proc_dir_entry proc_zorro_devices = {
PROC_BUS_ZORRO_DEVICES, 7, "devices",
S_IFREG | S_IRUGO, 1, 0, 0,
0, &proc_array_inode_operations,
get_zorro_dev_info
};
static struct proc_dir_entry *proc_bus_zorro_dir;
__initfunc(static int zorro_proc_attach_device(u_int slot))
{
struct proc_dir_entry *entry;
char name[4];
sprintf(name, "%02x", slot);
entry = create_proc_entry(name, S_IFREG | S_IRUGO, proc_bus_zorro_dir);
if (!entry)
return -ENOMEM;
entry->ops = &proc_bus_zorro_inode_operations;
entry->data = &zorro_autocon[slot];
entry->size = sizeof(struct ConfigDev);
return 0;
}
__initfunc(void zorro_proc_init(void))
{
u_int slot;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
return;
proc_bus_zorro_dir = create_proc_entry("zorro", S_IFDIR, proc_bus);
proc_register(proc_bus_zorro_dir, &proc_zorro_devices);
for (slot = 0; slot < zorro_num_autocon; slot++)
zorro_proc_attach_device(slot);
}
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