[net-next-2.6.git] / drivers / zorro / proc.c

/*
 *	Procfs interface for the Zorro bus.
 *
 *	Copyright (C) 1998-2003 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/seq_file.h>
#include <linux/init.h>
#include <linux/smp_lock.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 = -1;
	struct inode *inode = file->f_path.dentry->d_inode;

	mutex_lock(&inode->i_mutex);
	switch (whence) {
	case 0:
		new = off;
		break;
	case 1:
		new = file->f_pos + off;
		break;
	case 2:
		new = sizeof(struct ConfigDev) + off;
		break;
	}
	if (new < 0 || new > sizeof(struct ConfigDev))
		new = -EINVAL;
	else
		file->f_pos = new;
	mutex_unlock(&inode->i_mutex);
	return new;
}

static ssize_t
proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
{
	struct inode *ino = file->f_path.dentry->d_inode;
	struct proc_dir_entry *dp = PDE(ino);
	struct zorro_dev *z = dp->data;
	struct ConfigDev cd;
	loff_t 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;

	/* Construct a ConfigDev */
	memset(&cd, 0, sizeof(cd));
	cd.cd_Rom = z->rom;
	cd.cd_SlotAddr = z->slotaddr;
	cd.cd_SlotSize = z->slotsize;
	cd.cd_BoardAddr = (void *)zorro_resource_start(z);
	cd.cd_BoardSize = zorro_resource_len(z);

	if (copy_to_user(buf, (void *)&cd + pos, nbytes))
		return -EFAULT;
	*ppos += nbytes;

	return nbytes;
}

static const struct file_operations proc_bus_zorro_operations = {
	.owner		= THIS_MODULE,
	.llseek		= proc_bus_zorro_lseek,
	.read		= proc_bus_zorro_read,
};

static void * zorro_seq_start(struct seq_file *m, loff_t *pos)
{
	return (*pos < zorro_num_autocon) ? pos : NULL;
}

static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos)
{
	(*pos)++;
	return (*pos < zorro_num_autocon) ? pos : NULL;
}

static void zorro_seq_stop(struct seq_file *m, void *v)
{
}

static int zorro_seq_show(struct seq_file *m, void *v)
{
	unsigned int slot = *(loff_t *)v;
	struct zorro_dev *z = &zorro_autocon[slot];

	seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
		   (unsigned long)zorro_resource_start(z),
		   (unsigned long)zorro_resource_len(z),
		   z->rom.er_Type);
	return 0;
}

static const struct seq_operations zorro_devices_seq_ops = {
	.start = zorro_seq_start,
	.next  = zorro_seq_next,
	.stop  = zorro_seq_stop,
	.show  = zorro_seq_show,
};

static int zorro_devices_proc_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &zorro_devices_seq_ops);
}

static const struct file_operations zorro_devices_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= zorro_devices_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= seq_release,
};

static struct proc_dir_entry *proc_bus_zorro_dir;

static int __init zorro_proc_attach_device(unsigned int slot)
{
	struct proc_dir_entry *entry;
	char name[4];

	sprintf(name, "%02x", slot);
	entry = proc_create_data(name, 0, proc_bus_zorro_dir,
				 &proc_bus_zorro_operations,
				 &zorro_autocon[slot]);
	if (!entry)
		return -ENOMEM;
	entry->size = sizeof(struct zorro_dev);
	return 0;
}

static int __init zorro_proc_init(void)
{
	unsigned int slot;

	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
		proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
		proc_create("devices", 0, proc_bus_zorro_dir,
			    &zorro_devices_proc_fops);
		for (slot = 0; slot < zorro_num_autocon; slot++)
			zorro_proc_attach_device(slot);
	}
	return 0;
}

device_initcall(zorro_proc_init);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	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>
8331438b	14	#include <linux/seq_file.h>
1da177e4 LT	15	#include <linux/init.h>
	16	#include <linux/smp_lock.h>
	17	#include <asm/uaccess.h>
	18	#include <asm/amigahw.h>
	19	#include <asm/setup.h>
	20
	21	static loff_t
	22	proc_bus_zorro_lseek(struct file *file, loff_t off, int whence)
	23	{
	24	loff_t new = -1;
d50ac468	25	struct inode *inode = file->f_path.dentry->d_inode;
1da177e4	26
d50ac468	27	mutex_lock(&inode->i_mutex);
1da177e4 LT	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	}
d50ac468 GU	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;
1da177e4 LT	45	}
	46
	47	static ssize_t
d998265f	48	proc_bus_zorro_read(struct file file, char __user buf, size_t nbytes, loff_t *ppos)
1da177e4	49	{
b3d7ae5f	50	struct inode *ino = file->f_path.dentry->d_inode;
1da177e4 LT	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
2190a1e7	71	if (copy_to_user(buf, (void *)&cd + pos, nbytes))
1da177e4 LT	72	return -EFAULT;
	73	*ppos += nbytes;
	74
	75	return nbytes;
	76	}
	77
00977a59	78	static const struct file_operations proc_bus_zorro_operations = {
659f865e	79	.owner = THIS_MODULE,
1da177e4 LT	80	.llseek = proc_bus_zorro_lseek,
	81	.read = proc_bus_zorro_read,
	82	};
	83
8331438b	84	static void * zorro_seq_start(struct seq_file m, loff_t pos)
1da177e4	85	{
8331438b AD	86	return (*pos < zorro_num_autocon) ? pos : NULL;
	87	}
	88
	89	static 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
	95	static void zorro_seq_stop(struct seq_file m, void v)
	96	{
	97	}
	98
	99	static int zorro_seq_show(struct seq_file m, void v)
	100	{
0d305464	101	unsigned int slot = (loff_t )v;
8331438b AD	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
	111	static 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
	118	static int zorro_devices_proc_open(struct inode inode, struct file file)
	119	{
	120	return seq_open(file, &zorro_devices_seq_ops);
1da177e4 LT	121	}
1da177e4 LT	122
8331438b AD	123	static 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
1da177e4 LT	131	static struct proc_dir_entry *proc_bus_zorro_dir;
1da177e4 LT	132
0d305464	133	static int __init zorro_proc_attach_device(unsigned int slot)
1da177e4 LT	134	{
	135	struct proc_dir_entry *entry;
	136	char name[4];
	137
	138	sprintf(name, "%02x", slot);
659f865e DL	139	entry = proc_create_data(name, 0, proc_bus_zorro_dir,
	140	&proc_bus_zorro_operations,
	141	&zorro_autocon[slot]);
1da177e4 LT	142	if (!entry)
1da177e4 LT	143	return -ENOMEM;
1da177e4 LT	144	entry->size = sizeof(struct zorro_dev);
	145	return 0;
	146	}
	147
	148	static int __init zorro_proc_init(void)
	149	{
0d305464	150	unsigned int slot;
1da177e4 LT	151
1da177e4 LT	152	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
9c37066d	153	proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
8331438b AD	154	proc_create("devices", 0, proc_bus_zorro_dir,
8331438b AD	155	&zorro_devices_proc_fops);
1da177e4 LT	156	for (slot = 0; slot < zorro_num_autocon; slot++)
	157	zorro_proc_attach_device(slot);
	158	}
	159	return 0;
	160	}
	161
a6a26a3e	162	device_initcall(zorro_proc_init);