[mirror_ubuntu-bionic-kernel.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/export.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)
{
	return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev));
}

static ssize_t
proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
{
	struct zorro_dev *z = PDE_DATA(file_inode(file));
	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;
	proc_set_size(entry, 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	15	#include <linux/init.h>
8aaf7a0e	16	#include <linux/export.h>
1da177e4 LT	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	{
3be1f2b8	24	return fixed_size_llseek(file, off, whence, sizeof(struct ConfigDev));
1da177e4 LT	25	}
	26
	27	static ssize_t
d998265f	28	proc_bus_zorro_read(struct file file, char __user buf, size_t nbytes, loff_t *ppos)
1da177e4	29	{
d9dda78b	30	struct zorro_dev *z = PDE_DATA(file_inode(file));
1da177e4 LT	31	struct ConfigDev cd;
	32	loff_t pos = *ppos;
	33
	34	if (pos >= sizeof(struct ConfigDev))
	35	return 0;
	36	if (nbytes >= sizeof(struct ConfigDev))
	37	nbytes = sizeof(struct ConfigDev);
	38	if (pos + nbytes > sizeof(struct ConfigDev))
	39	nbytes = sizeof(struct ConfigDev) - pos;
	40
	41	/* Construct a ConfigDev */
	42	memset(&cd, 0, sizeof(cd));
	43	cd.cd_Rom = z->rom;
	44	cd.cd_SlotAddr = z->slotaddr;
	45	cd.cd_SlotSize = z->slotsize;
	46	cd.cd_BoardAddr = (void *)zorro_resource_start(z);
	47	cd.cd_BoardSize = zorro_resource_len(z);
	48
2190a1e7	49	if (copy_to_user(buf, (void *)&cd + pos, nbytes))
1da177e4 LT	50	return -EFAULT;
	51	*ppos += nbytes;
	52
	53	return nbytes;
	54	}
	55
00977a59	56	static const struct file_operations proc_bus_zorro_operations = {
659f865e	57	.owner = THIS_MODULE,
1da177e4 LT	58	.llseek = proc_bus_zorro_lseek,
	59	.read = proc_bus_zorro_read,
	60	};
	61
8331438b	62	static void * zorro_seq_start(struct seq_file m, loff_t pos)
1da177e4	63	{
8331438b AD	64	return (*pos < zorro_num_autocon) ? pos : NULL;
	65	}
	66
	67	static void * zorro_seq_next(struct seq_file m, void v, loff_t *pos)
	68	{
	69	(*pos)++;
	70	return (*pos < zorro_num_autocon) ? pos : NULL;
	71	}
	72
	73	static void zorro_seq_stop(struct seq_file m, void v)
	74	{
	75	}
	76
	77	static int zorro_seq_show(struct seq_file m, void v)
	78	{
0d305464	79	unsigned int slot = (loff_t )v;
8331438b AD	80	struct zorro_dev *z = &zorro_autocon[slot];
	81
	82	seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id,
	83	(unsigned long)zorro_resource_start(z),
	84	(unsigned long)zorro_resource_len(z),
	85	z->rom.er_Type);
	86	return 0;
	87	}
	88
	89	static const struct seq_operations zorro_devices_seq_ops = {
	90	.start = zorro_seq_start,
	91	.next = zorro_seq_next,
	92	.stop = zorro_seq_stop,
	93	.show = zorro_seq_show,
	94	};
	95
	96	static int zorro_devices_proc_open(struct inode inode, struct file file)
	97	{
	98	return seq_open(file, &zorro_devices_seq_ops);
1da177e4 LT	99	}
1da177e4 LT	100
8331438b AD	101	static const struct file_operations zorro_devices_proc_fops = {
	102	.owner = THIS_MODULE,
	103	.open = zorro_devices_proc_open,
	104	.read = seq_read,
	105	.llseek = seq_lseek,
	106	.release = seq_release,
	107	};
	108
1da177e4 LT	109	static struct proc_dir_entry *proc_bus_zorro_dir;
1da177e4 LT	110
0d305464	111	static int __init zorro_proc_attach_device(unsigned int slot)
1da177e4 LT	112	{
	113	struct proc_dir_entry *entry;
	114	char name[4];
	115
	116	sprintf(name, "%02x", slot);
659f865e DL	117	entry = proc_create_data(name, 0, proc_bus_zorro_dir,
	118	&proc_bus_zorro_operations,
	119	&zorro_autocon[slot]);
1da177e4 LT	120	if (!entry)
1da177e4 LT	121	return -ENOMEM;
271a15ea	122	proc_set_size(entry, sizeof(struct zorro_dev));
1da177e4 LT	123	return 0;
	124	}
	125
	126	static int __init zorro_proc_init(void)
	127	{
0d305464	128	unsigned int slot;
1da177e4 LT	129
1da177e4 LT	130	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) {
9c37066d	131	proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL);
8331438b AD	132	proc_create("devices", 0, proc_bus_zorro_dir,
8331438b AD	133	&zorro_devices_proc_fops);
1da177e4 LT	134	for (slot = 0; slot < zorro_num_autocon; slot++)
	135	zorro_proc_attach_device(slot);
	136	}
	137	return 0;
	138	}
	139
a6a26a3e	140	device_initcall(zorro_proc_init);