[mirror_ubuntu-bionic-kernel.git] / drivers / parport / procfs.c

/* 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 <asm/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(ctl_table *table, int write, struct file *filp,
		      void __user *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;

	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}

#ifdef CONFIG_PARPORT_1284
static int do_autoprobe(ctl_table *table, int write, struct file *filp,
			void __user *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;

	return copy_to_user (result, buffer, len) ? -EFAULT : 0;
}
#endif /* IEEE1284.3 support. */

static int do_hardware_base_addr (ctl_table *table, int write,
				  struct file *filp, void __user *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;

	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}

static int do_hardware_irq (ctl_table *table, int write,
			    struct file *filp, void __user *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;

	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}

static int do_hardware_dma (ctl_table *table, int write,
			    struct file *filp, void __user *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;

	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}

static int do_hardware_modes (ctl_table *table, int write,
			      struct file *filp, void __user *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;

	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
}

#define PARPORT_PORT_DIR(child) { 0, NULL, NULL, 0, 0555, child }
#define PARPORT_PARPORT_DIR(child) { DEV_PARPORT, "parport", \
                                     NULL, 0, 0555, child }
#define PARPORT_DEV_DIR(child) { CTL_DEV, "dev", NULL, 0, 0555, child }
#define PARPORT_DEVICES_ROOT_DIR  { DEV_PARPORT_DEVICES, "devices", \
                                    NULL, 0, 0555, 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;
	ctl_table vars[12];
	ctl_table device_dir[2];
	ctl_table port_dir[2];
	ctl_table parport_dir[2];
	ctl_table dev_dir[2];
};

static const struct parport_sysctl_table parport_sysctl_template = {
	NULL,
        {
		{ DEV_PARPORT_SPINTIME, "spintime",
		  NULL, sizeof(int), 0644, NULL,
		  &proc_dointvec_minmax, NULL, NULL,
		  (void*) &parport_min_spintime_value,
		  (void*) &parport_max_spintime_value },
		{ DEV_PARPORT_BASE_ADDR, "base-addr",
		  NULL, 0, 0444, NULL,
		  &do_hardware_base_addr },
		{ DEV_PARPORT_IRQ, "irq",
		  NULL, 0, 0444, NULL,
		  &do_hardware_irq },
		{ DEV_PARPORT_DMA, "dma",
		  NULL, 0, 0444, NULL,
		  &do_hardware_dma },
		{ DEV_PARPORT_MODES, "modes",
		  NULL, 0, 0444, NULL,
		  &do_hardware_modes },
		PARPORT_DEVICES_ROOT_DIR,
#ifdef CONFIG_PARPORT_1284
		{ DEV_PARPORT_AUTOPROBE, "autoprobe",
		  NULL, 0, 0444, NULL,
		  &do_autoprobe },
		{ DEV_PARPORT_AUTOPROBE + 1, "autoprobe0",
		 NULL, 0, 0444, NULL,
		 &do_autoprobe },
		{ DEV_PARPORT_AUTOPROBE + 2, "autoprobe1",
		  NULL, 0, 0444, NULL,
		  &do_autoprobe },
		{ DEV_PARPORT_AUTOPROBE + 3, "autoprobe2",
		  NULL, 0, 0444, NULL,
		  &do_autoprobe },
		{ DEV_PARPORT_AUTOPROBE + 4, "autoprobe3",
		  NULL, 0, 0444, NULL,
		  &do_autoprobe },
#endif /* IEEE 1284 support */
		{0}
	},
	{ {DEV_PARPORT_DEVICES_ACTIVE, "active", NULL, 0, 0444, NULL,
	  &do_active_device }, {0}},
	{ PARPORT_PORT_DIR(NULL), {0}},
	{ PARPORT_PARPORT_DIR(NULL), {0}},
	{ PARPORT_DEV_DIR(NULL), {0}}
};

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

static const struct parport_device_sysctl_table
parport_device_sysctl_template = {
	NULL,
	{
		{ DEV_PARPORT_DEVICE_TIMESLICE, "timeslice",
		  NULL, sizeof(int), 0644, NULL,
		  &proc_doulongvec_ms_jiffies_minmax, NULL, NULL,
		  (void*) &parport_min_timeslice_value,
		  (void*) &parport_max_timeslice_value },
	},
	{ {0, NULL, NULL, 0, 0555, NULL}, {0}},
	{ PARPORT_DEVICES_ROOT_DIR, {0}},
	{ PARPORT_PORT_DIR(NULL), {0}},
	{ PARPORT_PARPORT_DIR(NULL), {0}},
	{ PARPORT_DEV_DIR(NULL), {0}}
};

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

extern unsigned long parport_default_timeslice;
extern int parport_default_spintime;

static struct parport_default_sysctl_table
parport_default_sysctl_table = {
	NULL,
	{
		{ DEV_PARPORT_DEFAULT_TIMESLICE, "timeslice",
		  &parport_default_timeslice,
		  sizeof(parport_default_timeslice), 0644, NULL,
		  &proc_doulongvec_ms_jiffies_minmax, NULL, NULL,
		  (void*) &parport_min_timeslice_value,
		  (void*) &parport_max_timeslice_value },
		{ DEV_PARPORT_DEFAULT_SPINTIME, "spintime",
		  &parport_default_spintime,
		  sizeof(parport_default_spintime), 0644, NULL,
		  &proc_dointvec_minmax, NULL, NULL,
		  (void*) &parport_min_spintime_value,
		  (void*) &parport_max_spintime_value },
		{0}
	},
	{ { DEV_PARPORT_DEFAULT, "default", NULL, 0, 0555,
	    parport_default_sysctl_table.vars },{0}},
	{
	PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir), 
	{0}},
	{ PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir), {0}}
};


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

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

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

	for (i = 0; i < 8; 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].ctl_name = port->number + 1; /* nb 0 isn't legal here */

	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, 0);
	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 = kmalloc(sizeof(*t), GFP_KERNEL);
	if (t == NULL)
		return -ENOMEM;
	memcpy(t, &parport_device_sysctl_template, sizeof(*t));

	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].ctl_name = port->number + 1; /* nb 0 isn't legal here */
	t->port_dir[0].child = t->devices_root_dir;
	t->devices_root_dir[0].child = t->device_dir;

#ifdef CONFIG_PARPORT_1284

	t->device_dir[0].ctl_name =
		parport_device_num(port->number, port->muxport,
				   device->daisy)
		+ 1;  /* nb 0 isn't legal here */ 

#else /* No IEEE 1284 support */

	/* parport_device_num isn't available. */
	t->device_dir[0].ctl_name = 1;
	
#endif /* IEEE 1284 support or not */

	t->device_dir[0].procname = device->name;
	t->device_dir[0].extra1 = device;
	t->device_dir[0].child = t->vars;
	t->vars[0].data = &device->timeslice;

	t->sysctl_header = register_sysctl_table(t->dev_dir, 0);
	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)
{
	parport_default_sysctl_table.sysctl_header =
		register_sysctl_table(parport_default_sysctl_table.dev_dir, 0);
	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;
	}
}

#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 0;
}

static void __exit parport_default_proc_unregister (void)
{
}
#endif

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