[linux-2.6-block.git] / drivers / parport / procfs.c

// SPDX-License-Identifier: GPL-2.0
/* Sysctl interface for parport devices.
 * 
 * Authors: David Campbell
 *          Tim Waugh <tim@cyberelk.demon.co.uk>
 *          Philip Blundell <philb@gnu.org>
 *          Andrea Arcangeli
 *          Riccardo Facchetti <fizban@tin.it>
 *
 * based on work by Grant Guenther <grant@torque.net>
 *              and Philip Blundell
 *
 * Cleaned up include files - Russell King <linux@arm.uk.linux.org>
 */

#include <linux/string.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/parport.h>
#include <linux/ctype.h>
#include <linux/sysctl.h>
#include <linux/device.h>

#include <linux/uaccess.h>

#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)

#define PARPORT_MIN_TIMESLICE_VALUE 1ul 
#define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ)
#define PARPORT_MIN_SPINTIME_VALUE 1
#define PARPORT_MAX_SPINTIME_VALUE 1000

static int do_active_device(struct ctl_table *table, int write,
		      void *result, size_t *lenp, loff_t *ppos)
{
	struct parport *port = (struct parport *)table->extra1;
	char buffer[256];
	struct pardevice *dev;
	int len = 0;

	if (write)		/* can't happen anyway */
		return -EACCES;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}
	
	for (dev = port->devices; dev ; dev = dev->next) {
		if(dev == port->cad) {
			len += sprintf(buffer, "%s\n", dev->name);
		}
	}

	if(!len) {
		len += sprintf(buffer, "%s\n", "none");
	}

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;
	memcpy(result, buffer, len);
	return 0;
}

#ifdef CONFIG_PARPORT_1284
static int do_autoprobe(struct ctl_table *table, int write,
			void *result, size_t *lenp, loff_t *ppos)
{
	struct parport_device_info *info = table->extra2;
	const char *str;
	char buffer[256];
	int len = 0;

	if (write) /* permissions stop this */
		return -EACCES;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}
	
	if ((str = info->class_name) != NULL)
		len += sprintf (buffer + len, "CLASS:%s;\n", str);

	if ((str = info->model) != NULL)
		len += sprintf (buffer + len, "MODEL:%s;\n", str);

	if ((str = info->mfr) != NULL)
		len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str);

	if ((str = info->description) != NULL)
		len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str);

	if ((str = info->cmdset) != NULL)
		len += sprintf (buffer + len, "COMMAND SET:%s;\n", str);

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;

	memcpy(result, buffer, len);
	return 0;
}
#endif /* IEEE1284.3 support. */

static int do_hardware_base_addr(struct ctl_table *table, int write,
				 void *result, size_t *lenp, loff_t *ppos)
{
	struct parport *port = (struct parport *)table->extra1;
	char buffer[20];
	int len = 0;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}

	if (write) /* permissions prevent this anyway */
		return -EACCES;

	len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi);

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;
	memcpy(result, buffer, len);
	return 0;
}

static int do_hardware_irq(struct ctl_table *table, int write,
			   void *result, size_t *lenp, loff_t *ppos)
{
	struct parport *port = (struct parport *)table->extra1;
	char buffer[20];
	int len = 0;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}

	if (write) /* permissions prevent this anyway */
		return -EACCES;

	len += sprintf (buffer, "%d\n", port->irq);

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;
	memcpy(result, buffer, len);
	return 0;
}

static int do_hardware_dma(struct ctl_table *table, int write,
			   void *result, size_t *lenp, loff_t *ppos)
{
	struct parport *port = (struct parport *)table->extra1;
	char buffer[20];
	int len = 0;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}

	if (write) /* permissions prevent this anyway */
		return -EACCES;

	len += sprintf (buffer, "%d\n", port->dma);

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;
	memcpy(result, buffer, len);
	return 0;
}

static int do_hardware_modes(struct ctl_table *table, int write,
			     void *result, size_t *lenp, loff_t *ppos)
{
	struct parport *port = (struct parport *)table->extra1;
	char buffer[40];
	int len = 0;

	if (*ppos) {
		*lenp = 0;
		return 0;
	}

	if (write) /* permissions prevent this anyway */
		return -EACCES;

	{
#define printmode(x) {if(port->modes&PARPORT_MODE_##x){len+=sprintf(buffer+len,"%s%s",f?",":"",#x);f++;}}
		int f = 0;
		printmode(PCSPP);
		printmode(TRISTATE);
		printmode(COMPAT);
		printmode(EPP);
		printmode(ECP);
		printmode(DMA);
#undef printmode
	}
	buffer[len++] = '\n';

	if (len > *lenp)
		len = *lenp;
	else
		*lenp = len;

	*ppos += len;
	memcpy(result, buffer, len);
	return 0;
}

#define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD }
#define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \
                                     .mode = 0555, .child = CHILD }
#define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD }
#define PARPORT_DEVICES_ROOT_DIR  {  .procname = "devices", \
                                    .mode = 0555, .child = NULL }

static const unsigned long parport_min_timeslice_value =
PARPORT_MIN_TIMESLICE_VALUE;

static const unsigned long parport_max_timeslice_value =
PARPORT_MAX_TIMESLICE_VALUE;

static const  int parport_min_spintime_value =
PARPORT_MIN_SPINTIME_VALUE;

static const int parport_max_spintime_value =
PARPORT_MAX_SPINTIME_VALUE;


struct parport_sysctl_table {
	struct ctl_table_header *sysctl_header;
	struct ctl_table vars[12];
	struct ctl_table device_dir[2];
	struct ctl_table port_dir[2];
	struct ctl_table parport_dir[2];
	struct ctl_table dev_dir[2];
};

static const struct parport_sysctl_table parport_sysctl_template = {
	.sysctl_header = NULL,
        {
		{
			.procname	= "spintime",
			.data		= NULL,
			.maxlen		= sizeof(int),
			.mode		= 0644,
			.proc_handler	= proc_dointvec_minmax,
			.extra1		= (void*) &parport_min_spintime_value,
			.extra2		= (void*) &parport_max_spintime_value
		},
		{
			.procname	= "base-addr",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_hardware_base_addr
		},
		{
			.procname	= "irq",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_hardware_irq
		},
		{
			.procname	= "dma",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_hardware_dma
		},
		{
			.procname	= "modes",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_hardware_modes
		},
		PARPORT_DEVICES_ROOT_DIR,
#ifdef CONFIG_PARPORT_1284
		{
			.procname	= "autoprobe",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_autoprobe
		},
		{
			.procname	= "autoprobe0",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_autoprobe
		},
		{
			.procname	= "autoprobe1",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_autoprobe
		},
		{
			.procname	= "autoprobe2",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_autoprobe
		},
		{
			.procname	= "autoprobe3",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_autoprobe
		},
#endif /* IEEE 1284 support */
		{}
	},
	{
		{
			.procname	= "active",
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0444,
			.proc_handler	= do_active_device
		},
		{}
	},
	{
		PARPORT_PORT_DIR(NULL),
		{}
	},
	{
		PARPORT_PARPORT_DIR(NULL),
		{}
	},
	{
		PARPORT_DEV_DIR(NULL),
		{}
	}
};

struct parport_device_sysctl_table
{
	struct ctl_table_header *sysctl_header;
	struct ctl_table vars[2];
	struct ctl_table device_dir[2];
	struct ctl_table devices_root_dir[2];
	struct ctl_table port_dir[2];
	struct ctl_table parport_dir[2];
	struct ctl_table dev_dir[2];
};

static const struct parport_device_sysctl_table
parport_device_sysctl_template = {
	.sysctl_header = NULL,
	{
		{
			.procname 	= "timeslice",
			.data		= NULL,
			.maxlen		= sizeof(unsigned long),
			.mode		= 0644,
			.proc_handler	= proc_doulongvec_ms_jiffies_minmax,
			.extra1		= (void*) &parport_min_timeslice_value,
			.extra2		= (void*) &parport_max_timeslice_value
		},
	},
	{
		{
			.procname	= NULL,
			.data		= NULL,
			.maxlen		= 0,
			.mode		= 0555,
			.child		= NULL
		},
		{}
	},
	{
		PARPORT_DEVICES_ROOT_DIR,
		{}
	},
	{
		PARPORT_PORT_DIR(NULL),
		{}
	},
	{
		PARPORT_PARPORT_DIR(NULL),
		{}
	},
	{
		PARPORT_DEV_DIR(NULL),
		{}
	}
};

struct parport_default_sysctl_table
{
	struct ctl_table_header *sysctl_header;
	struct ctl_table vars[3];
	struct ctl_table default_dir[2];
	struct ctl_table parport_dir[2];
	struct ctl_table dev_dir[2];
};

static struct parport_default_sysctl_table
parport_default_sysctl_table = {
	.sysctl_header	= NULL,
	{
		{
			.procname	= "timeslice",
			.data		= &parport_default_timeslice,
			.maxlen		= sizeof(parport_default_timeslice),
			.mode		= 0644,
			.proc_handler	= proc_doulongvec_ms_jiffies_minmax,
			.extra1		= (void*) &parport_min_timeslice_value,
			.extra2		= (void*) &parport_max_timeslice_value
		},
		{
			.procname	= "spintime",
			.data		= &parport_default_spintime,
			.maxlen		= sizeof(parport_default_spintime),
			.mode		= 0644,
			.proc_handler	= proc_dointvec_minmax,
			.extra1		= (void*) &parport_min_spintime_value,
			.extra2		= (void*) &parport_max_spintime_value
		},
		{}
	},
	{
		{
			.procname	= "default",
			.mode		= 0555,
			.child		= parport_default_sysctl_table.vars
		},
		{}
	},
	{
		PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir),
		{}
	},
	{
		PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir),
		{}
	}
};


int parport_proc_register(struct parport *port)
{
	struct parport_sysctl_table *t;
	int i;

	t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
	if (t == NULL)
		return -ENOMEM;

	t->device_dir[0].extra1 = port;

	for (i = 0; i < 5; i++)
		t->vars[i].extra1 = port;

	t->vars[0].data = &port->spintime;
	t->vars[5].child = t->device_dir;
	
	for (i = 0; i < 5; i++)
		t->vars[6 + i].extra2 = &port->probe_info[i];

	t->port_dir[0].procname = port->name;

	t->port_dir[0].child = t->vars;
	t->parport_dir[0].child = t->port_dir;
	t->dev_dir[0].child = t->parport_dir;

	t->sysctl_header = register_sysctl_table(t->dev_dir);
	if (t->sysctl_header == NULL) {
		kfree(t);
		t = NULL;
	}
	port->sysctl_table = t;
	return 0;
}

int parport_proc_unregister(struct parport *port)
{
	if (port->sysctl_table) {
		struct parport_sysctl_table *t = port->sysctl_table;
		port->sysctl_table = NULL;
		unregister_sysctl_table(t->sysctl_header);
		kfree(t);
	}
	return 0;
}

int parport_device_proc_register(struct pardevice *device)
{
	struct parport_device_sysctl_table *t;
	struct parport * port = device->port;
	
	t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
	if (t == NULL)
		return -ENOMEM;

	t->dev_dir[0].child = t->parport_dir;
	t->parport_dir[0].child = t->port_dir;
	t->port_dir[0].procname = port->name;
	t->port_dir[0].child = t->devices_root_dir;
	t->devices_root_dir[0].child = t->device_dir;

	t->device_dir[0].procname = device->name;
	t->device_dir[0].child = t->vars;
	t->vars[0].data = &device->timeslice;

	t->sysctl_header = register_sysctl_table(t->dev_dir);
	if (t->sysctl_header == NULL) {
		kfree(t);
		t = NULL;
	}
	device->sysctl_table = t;
	return 0;
}

int parport_device_proc_unregister(struct pardevice *device)
{
	if (device->sysctl_table) {
		struct parport_device_sysctl_table *t = device->sysctl_table;
		device->sysctl_table = NULL;
		unregister_sysctl_table(t->sysctl_header);
		kfree(t);
	}
	return 0;
}

static int __init parport_default_proc_register(void)
{
	int ret;

	parport_default_sysctl_table.sysctl_header =
		register_sysctl_table(parport_default_sysctl_table.dev_dir);
	if (!parport_default_sysctl_table.sysctl_header)
		return -ENOMEM;
	ret = parport_bus_init();
	if (ret) {
		unregister_sysctl_table(parport_default_sysctl_table.
					sysctl_header);
		return ret;
	}
	return 0;
}

static void __exit parport_default_proc_unregister(void)
{
	if (parport_default_sysctl_table.sysctl_header) {
		unregister_sysctl_table(parport_default_sysctl_table.
					sysctl_header);
		parport_default_sysctl_table.sysctl_header = NULL;
	}
	parport_bus_exit();
}

#else /* no sysctl or no procfs*/

int parport_proc_register(struct parport *pp)
{
	return 0;
}

int parport_proc_unregister(struct parport *pp)
{
	return 0;
}

int parport_device_proc_register(struct pardevice *device)
{
	return 0;
}

int parport_device_proc_unregister(struct pardevice *device)
{
	return 0;
}

static int __init parport_default_proc_register (void)
{
	return parport_bus_init();
}

static void __exit parport_default_proc_unregister (void)
{
	parport_bus_exit();
}
#endif

subsys_initcall(parport_default_proc_register)
module_exit(parport_default_proc_unregister)
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/* Sysctl interface for parport devices.
1da177e4 LT	3	*
bdca3f20	4	* Authors: David Campbell
1da177e4 LT	5	* Tim Waugh <tim@cyberelk.demon.co.uk>
	6	* Philip Blundell <philb@gnu.org>
	7	* Andrea Arcangeli
	8	* Riccardo Facchetti <fizban@tin.it>
	9	*
	10	* based on work by Grant Guenther <grant@torque.net>
	11	* and Philip Blundell
	12	*
	13	* Cleaned up include files - Russell King <linux@arm.uk.linux.org>
	14	*/
	15
	16	#include <linux/string.h>
1da177e4 LT	17	#include <linux/init.h>
	18	#include <linux/module.h>
	19	#include <linux/errno.h>
	20	#include <linux/kernel.h>
	21	#include <linux/slab.h>
	22	#include <linux/parport.h>
	23	#include <linux/ctype.h>
	24	#include <linux/sysctl.h>
6fa45a22	25	#include <linux/device.h>
1da177e4	26
7c0f6ba6	27	#include <linux/uaccess.h>
1da177e4 LT	28
	29	#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
	30
	31	#define PARPORT_MIN_TIMESLICE_VALUE 1ul
	32	#define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ)
	33	#define PARPORT_MIN_SPINTIME_VALUE 1
	34	#define PARPORT_MAX_SPINTIME_VALUE 1000
	35
be424c63	36	static int do_active_device(struct ctl_table *table, int write,
32927393	37	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	38	{
	39	struct parport port = (struct parport )table->extra1;
	40	char buffer[256];
	41	struct pardevice *dev;
	42	int len = 0;
	43
	44	if (write) /* can't happen anyway */
	45	return -EACCES;
	46
	47	if (*ppos) {
	48	*lenp = 0;
	49	return 0;
	50	}
	51
	52	for (dev = port->devices; dev ; dev = dev->next) {
	53	if(dev == port->cad) {
	54	len += sprintf(buffer, "%s\n", dev->name);
	55	}
	56	}
	57
	58	if(!len) {
	59	len += sprintf(buffer, "%s\n", "none");
	60	}
	61
	62	if (len > *lenp)
	63	len = *lenp;
	64	else
	65	*lenp = len;
	66
	67	*ppos += len;
32927393 CH	68	memcpy(result, buffer, len);
32927393 CH	69	return 0;
1da177e4 LT	70	}
	71
	72	#ifdef CONFIG_PARPORT_1284
be424c63	73	static int do_autoprobe(struct ctl_table *table, int write,
32927393	74	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	75	{
	76	struct parport_device_info *info = table->extra2;
	77	const char *str;
	78	char buffer[256];
	79	int len = 0;
	80
	81	if (write) /* permissions stop this */
	82	return -EACCES;
	83
	84	if (*ppos) {
	85	*lenp = 0;
	86	return 0;
	87	}
	88
	89	if ((str = info->class_name) != NULL)
	90	len += sprintf (buffer + len, "CLASS:%s;\n", str);
	91
	92	if ((str = info->model) != NULL)
	93	len += sprintf (buffer + len, "MODEL:%s;\n", str);
	94
	95	if ((str = info->mfr) != NULL)
	96	len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str);
	97
	98	if ((str = info->description) != NULL)
	99	len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str);
	100
	101	if ((str = info->cmdset) != NULL)
	102	len += sprintf (buffer + len, "COMMAND SET:%s;\n", str);
	103
	104	if (len > *lenp)
	105	len = *lenp;
	106	else
	107	*lenp = len;
	108
	109	*ppos += len;
	110
32927393 CH	111	memcpy(result, buffer, len);
32927393 CH	112	return 0;
1da177e4 LT	113	}
	114	#endif /* IEEE1284.3 support. */
	115
be424c63	116	static int do_hardware_base_addr(struct ctl_table *table, int write,
32927393	117	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	118	{
	119	struct parport port = (struct parport )table->extra1;
	120	char buffer[20];
	121	int len = 0;
	122
	123	if (*ppos) {
	124	*lenp = 0;
	125	return 0;
	126	}
	127
	128	if (write) /* permissions prevent this anyway */
	129	return -EACCES;
	130
	131	len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi);
	132
	133	if (len > *lenp)
	134	len = *lenp;
	135	else
	136	*lenp = len;
	137
	138	*ppos += len;
32927393 CH	139	memcpy(result, buffer, len);
32927393 CH	140	return 0;
1da177e4 LT	141	}
1da177e4 LT	142
be424c63	143	static int do_hardware_irq(struct ctl_table *table, int write,
32927393	144	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	145	{
	146	struct parport port = (struct parport )table->extra1;
	147	char buffer[20];
	148	int len = 0;
	149
	150	if (*ppos) {
	151	*lenp = 0;
	152	return 0;
	153	}
	154
	155	if (write) /* permissions prevent this anyway */
	156	return -EACCES;
	157
	158	len += sprintf (buffer, "%d\n", port->irq);
	159
	160	if (len > *lenp)
	161	len = *lenp;
	162	else
	163	*lenp = len;
	164
	165	*ppos += len;
32927393 CH	166	memcpy(result, buffer, len);
32927393 CH	167	return 0;
1da177e4 LT	168	}
1da177e4 LT	169
be424c63	170	static int do_hardware_dma(struct ctl_table *table, int write,
32927393	171	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	172	{
	173	struct parport port = (struct parport )table->extra1;
	174	char buffer[20];
	175	int len = 0;
	176
	177	if (*ppos) {
	178	*lenp = 0;
	179	return 0;
	180	}
	181
	182	if (write) /* permissions prevent this anyway */
	183	return -EACCES;
	184
	185	len += sprintf (buffer, "%d\n", port->dma);
	186
	187	if (len > *lenp)
	188	len = *lenp;
	189	else
	190	*lenp = len;
	191
	192	*ppos += len;
32927393 CH	193	memcpy(result, buffer, len);
32927393 CH	194	return 0;
1da177e4 LT	195	}
1da177e4 LT	196
be424c63	197	static int do_hardware_modes(struct ctl_table *table, int write,
32927393	198	void result, size_t lenp, loff_t *ppos)
1da177e4 LT	199	{
	200	struct parport port = (struct parport )table->extra1;
	201	char buffer[40];
	202	int len = 0;
	203
	204	if (*ppos) {
	205	*lenp = 0;
	206	return 0;
	207	}
	208
	209	if (write) /* permissions prevent this anyway */
	210	return -EACCES;
	211
	212	{
	213	#define printmode(x) {if(port->modes&PARPORT_MODE_##x){len+=sprintf(buffer+len,"%s%s",f?",":"",#x);f++;}}
	214	int f = 0;
	215	printmode(PCSPP);
	216	printmode(TRISTATE);
	217	printmode(COMPAT);
	218	printmode(EPP);
	219	printmode(ECP);
	220	printmode(DMA);
	221	#undef printmode
	222	}
	223	buffer[len++] = '\n';
	224
	225	if (len > *lenp)
	226	len = *lenp;
	227	else
	228	*lenp = len;
	229
	230	*ppos += len;
32927393 CH	231	memcpy(result, buffer, len);
32927393 CH	232	return 0;
1da177e4 LT	233	}
1da177e4 LT	234
894d2491 EB	235	#define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD }
894d2491 EB	236	#define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \
2564b7bd	237	.mode = 0555, .child = CHILD }
894d2491	238	#define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD }
25398a15	239	#define PARPORT_DEVICES_ROOT_DIR { .procname = "devices", \
2564b7bd	240	.mode = 0555, .child = NULL }
1da177e4 LT	241
	242	static const unsigned long parport_min_timeslice_value =
	243	PARPORT_MIN_TIMESLICE_VALUE;
	244
	245	static const unsigned long parport_max_timeslice_value =
	246	PARPORT_MAX_TIMESLICE_VALUE;
	247
	248	static const int parport_min_spintime_value =
	249	PARPORT_MIN_SPINTIME_VALUE;
	250
	251	static const int parport_max_spintime_value =
	252	PARPORT_MAX_SPINTIME_VALUE;
	253
	254
	255	struct parport_sysctl_table {
	256	struct ctl_table_header *sysctl_header;
be424c63 JP	257	struct ctl_table vars[12];
	258	struct ctl_table device_dir[2];
	259	struct ctl_table port_dir[2];
	260	struct ctl_table parport_dir[2];
	261	struct ctl_table dev_dir[2];
1da177e4 LT	262	};
	263
	264	static const struct parport_sysctl_table parport_sysctl_template = {
2564b7bd	265	.sysctl_header = NULL,
1da177e4	266	{
2564b7bd	267	{
2564b7bd EB	268	.procname = "spintime",
	269	.data = NULL,
	270	.maxlen = sizeof(int),
	271	.mode = 0644,
6d456111	272	.proc_handler = proc_dointvec_minmax,
2564b7bd EB	273	.extra1 = (void*) &parport_min_spintime_value,
	274	.extra2 = (void*) &parport_max_spintime_value
	275	},
	276	{
2564b7bd EB	277	.procname = "base-addr",
	278	.data = NULL,
	279	.maxlen = 0,
	280	.mode = 0444,
6d456111	281	.proc_handler = do_hardware_base_addr
2564b7bd EB	282	},
2564b7bd EB	283	{
2564b7bd EB	284	.procname = "irq",
	285	.data = NULL,
	286	.maxlen = 0,
	287	.mode = 0444,
6d456111	288	.proc_handler = do_hardware_irq
2564b7bd EB	289	},
2564b7bd EB	290	{
2564b7bd EB	291	.procname = "dma",
	292	.data = NULL,
	293	.maxlen = 0,
	294	.mode = 0444,
6d456111	295	.proc_handler = do_hardware_dma
2564b7bd EB	296	},
2564b7bd EB	297	{
2564b7bd EB	298	.procname = "modes",
	299	.data = NULL,
	300	.maxlen = 0,
	301	.mode = 0444,
6d456111	302	.proc_handler = do_hardware_modes
2564b7bd	303	},
1da177e4 LT	304	PARPORT_DEVICES_ROOT_DIR,
1da177e4 LT	305	#ifdef CONFIG_PARPORT_1284
2564b7bd	306	{
2564b7bd EB	307	.procname = "autoprobe",
	308	.data = NULL,
	309	.maxlen = 0,
	310	.mode = 0444,
6d456111	311	.proc_handler = do_autoprobe
2564b7bd EB	312	},
2564b7bd EB	313	{
2564b7bd EB	314	.procname = "autoprobe0",
	315	.data = NULL,
	316	.maxlen = 0,
	317	.mode = 0444,
6d456111	318	.proc_handler = do_autoprobe
2564b7bd EB	319	},
2564b7bd EB	320	{
2564b7bd EB	321	.procname = "autoprobe1",
	322	.data = NULL,
	323	.maxlen = 0,
	324	.mode = 0444,
6d456111	325	.proc_handler = do_autoprobe
2564b7bd EB	326	},
2564b7bd EB	327	{
2564b7bd EB	328	.procname = "autoprobe2",
	329	.data = NULL,
	330	.maxlen = 0,
	331	.mode = 0444,
6d456111	332	.proc_handler = do_autoprobe
2564b7bd EB	333	},
2564b7bd EB	334	{
2564b7bd EB	335	.procname = "autoprobe3",
	336	.data = NULL,
	337	.maxlen = 0,
	338	.mode = 0444,
6d456111	339	.proc_handler = do_autoprobe
2564b7bd	340	},
1da177e4	341	#endif /* IEEE 1284 support */
2564b7bd	342	{}
1da177e4	343	},
2564b7bd EB	344	{
2564b7bd EB	345	{
2564b7bd EB	346	.procname = "active",
	347	.data = NULL,
	348	.maxlen = 0,
	349	.mode = 0444,
6d456111	350	.proc_handler = do_active_device
2564b7bd EB	351	},
	352	{}
	353	},
	354	{
	355	PARPORT_PORT_DIR(NULL),
	356	{}
	357	},
	358	{
	359	PARPORT_PARPORT_DIR(NULL),
	360	{}
	361	},
	362	{
	363	PARPORT_DEV_DIR(NULL),
	364	{}
	365	}
1da177e4 LT	366	};
	367
	368	struct parport_device_sysctl_table
	369	{
	370	struct ctl_table_header *sysctl_header;
be424c63 JP	371	struct ctl_table vars[2];
	372	struct ctl_table device_dir[2];
	373	struct ctl_table devices_root_dir[2];
	374	struct ctl_table port_dir[2];
	375	struct ctl_table parport_dir[2];
	376	struct ctl_table dev_dir[2];
1da177e4 LT	377	};
	378
	379	static const struct parport_device_sysctl_table
	380	parport_device_sysctl_template = {
2564b7bd EB	381	.sysctl_header = NULL,
	382	{
	383	{
2564b7bd EB	384	.procname = "timeslice",
2564b7bd EB	385	.data = NULL,
60af8803	386	.maxlen = sizeof(unsigned long),
2564b7bd	387	.mode = 0644,
6d456111	388	.proc_handler = proc_doulongvec_ms_jiffies_minmax,
2564b7bd EB	389	.extra1 = (void*) &parport_min_timeslice_value,
	390	.extra2 = (void*) &parport_max_timeslice_value
	391	},
	392	},
	393	{
	394	{
2564b7bd EB	395	.procname = NULL,
	396	.data = NULL,
	397	.maxlen = 0,
	398	.mode = 0555,
	399	.child = NULL
	400	},
	401	{}
	402	},
1da177e4	403	{
2564b7bd EB	404	PARPORT_DEVICES_ROOT_DIR,
	405	{}
	406	},
	407	{
	408	PARPORT_PORT_DIR(NULL),
	409	{}
1da177e4	410	},
2564b7bd EB	411	{
	412	PARPORT_PARPORT_DIR(NULL),
	413	{}
	414	},
	415	{
	416	PARPORT_DEV_DIR(NULL),
	417	{}
	418	}
1da177e4 LT	419	};
	420
	421	struct parport_default_sysctl_table
	422	{
	423	struct ctl_table_header *sysctl_header;
be424c63 JP	424	struct ctl_table vars[3];
	425	struct ctl_table default_dir[2];
	426	struct ctl_table parport_dir[2];
	427	struct ctl_table dev_dir[2];
1da177e4 LT	428	};
1da177e4 LT	429
1da177e4 LT	430	static struct parport_default_sysctl_table
1da177e4 LT	431	parport_default_sysctl_table = {
2564b7bd EB	432	.sysctl_header = NULL,
	433	{
	434	{
2564b7bd EB	435	.procname = "timeslice",
	436	.data = &parport_default_timeslice,
	437	.maxlen = sizeof(parport_default_timeslice),
	438	.mode = 0644,
6d456111	439	.proc_handler = proc_doulongvec_ms_jiffies_minmax,
2564b7bd EB	440	.extra1 = (void*) &parport_min_timeslice_value,
	441	.extra2 = (void*) &parport_max_timeslice_value
	442	},
	443	{
2564b7bd EB	444	.procname = "spintime",
	445	.data = &parport_default_spintime,
	446	.maxlen = sizeof(parport_default_spintime),
	447	.mode = 0644,
6d456111	448	.proc_handler = proc_dointvec_minmax,
2564b7bd EB	449	.extra1 = (void*) &parport_min_spintime_value,
	450	.extra2 = (void*) &parport_max_spintime_value
	451	},
	452	{}
	453	},
1da177e4	454	{
2564b7bd	455	{
2564b7bd EB	456	.procname = "default",
	457	.mode = 0555,
	458	.child = parport_default_sysctl_table.vars
	459	},
	460	{}
1da177e4	461	},
1da177e4	462	{
2564b7bd EB	463	PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir),
	464	{}
	465	},
	466	{
	467	PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir),
	468	{}
	469	}
1da177e4 LT	470	};
	471
	472
	473	int parport_proc_register(struct parport *port)
	474	{
	475	struct parport_sysctl_table *t;
	476	int i;
	477
2451a848	478	t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
1da177e4 LT	479	if (t == NULL)
1da177e4 LT	480	return -ENOMEM;
1da177e4 LT	481
	482	t->device_dir[0].extra1 = port;
	483
25398a15	484	for (i = 0; i < 5; i++)
1da177e4 LT	485	t->vars[i].extra1 = port;
	486
	487	t->vars[0].data = &port->spintime;
	488	t->vars[5].child = t->device_dir;
	489
	490	for (i = 0; i < 5; i++)
	491	t->vars[6 + i].extra2 = &port->probe_info[i];
	492
	493	t->port_dir[0].procname = port->name;
1da177e4 LT	494
	495	t->port_dir[0].child = t->vars;
	496	t->parport_dir[0].child = t->port_dir;
	497	t->dev_dir[0].child = t->parport_dir;
	498
0b4d4147	499	t->sysctl_header = register_sysctl_table(t->dev_dir);
1da177e4 LT	500	if (t->sysctl_header == NULL) {
	501	kfree(t);
	502	t = NULL;
	503	}
	504	port->sysctl_table = t;
	505	return 0;
	506	}
	507
	508	int parport_proc_unregister(struct parport *port)
	509	{
	510	if (port->sysctl_table) {
	511	struct parport_sysctl_table *t = port->sysctl_table;
	512	port->sysctl_table = NULL;
	513	unregister_sysctl_table(t->sysctl_header);
	514	kfree(t);
	515	}
	516	return 0;
	517	}
	518
	519	int parport_device_proc_register(struct pardevice *device)
	520	{
	521	struct parport_device_sysctl_table *t;
	522	struct parport * port = device->port;
	523
2451a848	524	t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
1da177e4 LT	525	if (t == NULL)
1da177e4 LT	526	return -ENOMEM;
1da177e4 LT	527
	528	t->dev_dir[0].child = t->parport_dir;
	529	t->parport_dir[0].child = t->port_dir;
	530	t->port_dir[0].procname = port->name;
1da177e4 LT	531	t->port_dir[0].child = t->devices_root_dir;
	532	t->devices_root_dir[0].child = t->device_dir;
	533
1da177e4	534	t->device_dir[0].procname = device->name;
1da177e4 LT	535	t->device_dir[0].child = t->vars;
	536	t->vars[0].data = &device->timeslice;
	537
0b4d4147	538	t->sysctl_header = register_sysctl_table(t->dev_dir);
1da177e4 LT	539	if (t->sysctl_header == NULL) {
	540	kfree(t);
	541	t = NULL;
	542	}
	543	device->sysctl_table = t;
	544	return 0;
	545	}
	546
	547	int parport_device_proc_unregister(struct pardevice *device)
	548	{
	549	if (device->sysctl_table) {
	550	struct parport_device_sysctl_table *t = device->sysctl_table;
	551	device->sysctl_table = NULL;
	552	unregister_sysctl_table(t->sysctl_header);
	553	kfree(t);
	554	}
	555	return 0;
	556	}
	557
	558	static int __init parport_default_proc_register(void)
	559	{
6fa45a22 SM	560	int ret;
6fa45a22 SM	561
1da177e4	562	parport_default_sysctl_table.sysctl_header =
0b4d4147	563	register_sysctl_table(parport_default_sysctl_table.dev_dir);
6fa45a22 SM	564	if (!parport_default_sysctl_table.sysctl_header)
	565	return -ENOMEM;
	566	ret = parport_bus_init();
	567	if (ret) {
	568	unregister_sysctl_table(parport_default_sysctl_table.
	569	sysctl_header);
	570	return ret;
	571	}
1da177e4 LT	572	return 0;
	573	}
	574
	575	static void __exit parport_default_proc_unregister(void)
	576	{
	577	if (parport_default_sysctl_table.sysctl_header) {
	578	unregister_sysctl_table(parport_default_sysctl_table.
	579	sysctl_header);
	580	parport_default_sysctl_table.sysctl_header = NULL;
	581	}
6fa45a22	582	parport_bus_exit();
1da177e4 LT	583	}
	584
	585	#else /* no sysctl or no procfs*/
	586
	587	int parport_proc_register(struct parport *pp)
	588	{
	589	return 0;
	590	}
	591
	592	int parport_proc_unregister(struct parport *pp)
	593	{
	594	return 0;
	595	}
	596
	597	int parport_device_proc_register(struct pardevice *device)
	598	{
	599	return 0;
	600	}
	601
	602	int parport_device_proc_unregister(struct pardevice *device)
	603	{
	604	return 0;
	605	}
	606
	607	static int __init parport_default_proc_register (void)
	608	{
6fa45a22	609	return parport_bus_init();
1da177e4 LT	610	}
	611
	612	static void __exit parport_default_proc_unregister (void)
	613	{
6fa45a22	614	parport_bus_exit();
1da177e4 LT	615	}
	616	#endif
	617
bbca503b	618	subsys_initcall(parport_default_proc_register)
1da177e4	619	module_exit(parport_default_proc_unregister)