[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;

	lock_kernel();
	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)) {
		unlock_kernel();
		return -EINVAL;
	}
	unlock_kernel();
	return (file->f_pos = 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, &cd, 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;
	25
	26	lock_kernel();
	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	unlock_kernel();
	40	return -EINVAL;
	41	}
	42	unlock_kernel();
	43	return (file->f_pos = new);
	44	}
	45
	46	static ssize_t
d998265f	47	proc_bus_zorro_read(struct file file, char __user buf, size_t nbytes, loff_t *ppos)
1da177e4	48	{
b3d7ae5f	49	struct inode *ino = file->f_path.dentry->d_inode;
1da177e4 LT	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	/* Construct a ConfigDev */
	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, &cd, nbytes))
	71	return -EFAULT;
	72	*ppos += nbytes;
	73
	74	return nbytes;
	75	}
	76
00977a59	77	static const struct file_operations proc_bus_zorro_operations = {
659f865e	78	.owner = THIS_MODULE,
1da177e4 LT	79	.llseek = proc_bus_zorro_lseek,
	80	.read = proc_bus_zorro_read,
	81	};
	82
8331438b	83	static void * zorro_seq_start(struct seq_file m, loff_t pos)
1da177e4	84	{
8331438b AD	85	return (*pos < zorro_num_autocon) ? pos : NULL;
	86	}
	87
	88	static 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
	94	static void zorro_seq_stop(struct seq_file m, void v)
	95	{
	96	}
	97
	98	static int zorro_seq_show(struct seq_file m, void v)
	99	{
0d305464	100	unsigned int slot = (loff_t )v;
8331438b AD	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
	110	static 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
	117	static int zorro_devices_proc_open(struct inode inode, struct file file)
	118	{
	119	return seq_open(file, &zorro_devices_seq_ops);
1da177e4 LT	120	}
1da177e4 LT	121
8331438b AD	122	static 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
1da177e4 LT	130	static struct proc_dir_entry *proc_bus_zorro_dir;
1da177e4 LT	131
0d305464	132	static int __init zorro_proc_attach_device(unsigned int slot)
1da177e4 LT	133	{
	134	struct proc_dir_entry *entry;
	135	char name[4];
	136
	137	sprintf(name, "%02x", slot);
659f865e DL	138	entry = proc_create_data(name, 0, proc_bus_zorro_dir,
	139	&proc_bus_zorro_operations,
	140	&zorro_autocon[slot]);
1da177e4 LT	141	if (!entry)
1da177e4 LT	142	return -ENOMEM;
1da177e4 LT	143	entry->size = sizeof(struct zorro_dev);
	144	return 0;
	145	}
	146
	147	static int __init zorro_proc_init(void)
	148	{
0d305464	149	unsigned int slot;
1da177e4 LT	150
1da177e4 LT	151	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
9c37066d	152	proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
8331438b AD	153	proc_create("devices", 0, proc_bus_zorro_dir,
8331438b AD	154	&zorro_devices_proc_fops);
1da177e4 LT	155	for (slot = 0; slot < zorro_num_autocon; slot++)
	156	zorro_proc_attach_device(slot);
	157	}
	158	return 0;
	159	}
	160
a6a26a3e	161	device_initcall(zorro_proc_init);