[deliverable/linux.git] / drivers / pnp / interface.c

/*
 * interface.c - contains everything related to the user interface
 *
 * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz>
 * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
 */

#include <linux/pnp.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/pnp.h>
#include <linux/stat.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/mutex.h>

#include <asm/uaccess.h>

#include "base.h"

struct pnp_info_buffer {
	char *buffer;		/* pointer to begin of buffer */
	char *curr;		/* current position in buffer */
	unsigned long size;	/* current size */
	unsigned long len;	/* total length of buffer */
	int stop;		/* stop flag */
	int error;		/* error code */
};

typedef struct pnp_info_buffer pnp_info_buffer_t;

static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...)
{
	va_list args;
	int res;

	if (buffer->stop || buffer->error)
		return 0;
	va_start(args, fmt);
	res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
	va_end(args);
	if (buffer->size + res >= buffer->len) {
		buffer->stop = 1;
		return 0;
	}
	buffer->curr += res;
	buffer->size += res;
	return res;
}

static void pnp_print_port(pnp_info_buffer_t * buffer, char *space,
			   struct pnp_port *port)
{
	pnp_printf(buffer, "%sport %#llx-%#llx, align %#llx, size %#llx, "
		   "%i-bit address decoding\n", space,
		   (unsigned long long) port->min,
		   (unsigned long long) port->max,
		   port->align ? ((unsigned long long) port->align - 1) : 0,
		   (unsigned long long) port->size,
		   port->flags & IORESOURCE_IO_16BIT_ADDR ? 16 : 10);
}

static void pnp_print_irq(pnp_info_buffer_t * buffer, char *space,
			  struct pnp_irq *irq)
{
	int first = 1, i;

	pnp_printf(buffer, "%sirq ", space);
	for (i = 0; i < PNP_IRQ_NR; i++)
		if (test_bit(i, irq->map.bits)) {
			if (!first) {
				pnp_printf(buffer, ",");
			} else {
				first = 0;
			}
			if (i == 2 || i == 9)
				pnp_printf(buffer, "2/9");
			else
				pnp_printf(buffer, "%i", i);
		}
	if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
		pnp_printf(buffer, "<none>");
	if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
		pnp_printf(buffer, " High-Edge");
	if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
		pnp_printf(buffer, " Low-Edge");
	if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
		pnp_printf(buffer, " High-Level");
	if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
		pnp_printf(buffer, " Low-Level");
	if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
		pnp_printf(buffer, " (optional)");
	pnp_printf(buffer, "\n");
}

static void pnp_print_dma(pnp_info_buffer_t * buffer, char *space,
			  struct pnp_dma *dma)
{
	int first = 1, i;
	char *s;

	pnp_printf(buffer, "%sdma ", space);
	for (i = 0; i < 8; i++)
		if (dma->map & (1 << i)) {
			if (!first) {
				pnp_printf(buffer, ",");
			} else {
				first = 0;
			}
			pnp_printf(buffer, "%i", i);
		}
	if (!dma->map)
		pnp_printf(buffer, "<none>");
	switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
	case IORESOURCE_DMA_8BIT:
		s = "8-bit";
		break;
	case IORESOURCE_DMA_8AND16BIT:
		s = "8-bit&16-bit";
		break;
	default:
		s = "16-bit";
	}
	pnp_printf(buffer, " %s", s);
	if (dma->flags & IORESOURCE_DMA_MASTER)
		pnp_printf(buffer, " master");
	if (dma->flags & IORESOURCE_DMA_BYTE)
		pnp_printf(buffer, " byte-count");
	if (dma->flags & IORESOURCE_DMA_WORD)
		pnp_printf(buffer, " word-count");
	switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
	case IORESOURCE_DMA_TYPEA:
		s = "type-A";
		break;
	case IORESOURCE_DMA_TYPEB:
		s = "type-B";
		break;
	case IORESOURCE_DMA_TYPEF:
		s = "type-F";
		break;
	default:
		s = "compatible";
		break;
	}
	pnp_printf(buffer, " %s\n", s);
}

static void pnp_print_mem(pnp_info_buffer_t * buffer, char *space,
			  struct pnp_mem *mem)
{
	char *s;

	pnp_printf(buffer, "%sMemory %#llx-%#llx, align %#llx, size %#llx",
		   space, (unsigned long long) mem->min,
		   (unsigned long long) mem->max,
		   (unsigned long long) mem->align,
		   (unsigned long long) mem->size);
	if (mem->flags & IORESOURCE_MEM_WRITEABLE)
		pnp_printf(buffer, ", writeable");
	if (mem->flags & IORESOURCE_MEM_CACHEABLE)
		pnp_printf(buffer, ", cacheable");
	if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
		pnp_printf(buffer, ", range-length");
	if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
		pnp_printf(buffer, ", shadowable");
	if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
		pnp_printf(buffer, ", expansion ROM");
	switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
	case IORESOURCE_MEM_8BIT:
		s = "8-bit";
		break;
	case IORESOURCE_MEM_8AND16BIT:
		s = "8-bit&16-bit";
		break;
	case IORESOURCE_MEM_32BIT:
		s = "32-bit";
		break;
	default:
		s = "16-bit";
	}
	pnp_printf(buffer, ", %s\n", s);
}

static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
			     struct pnp_option *option, int dep)
{
	char *s;
	struct pnp_port *port;
	struct pnp_irq *irq;
	struct pnp_dma *dma;
	struct pnp_mem *mem;

	if (dep) {
		switch (option->priority) {
		case PNP_RES_PRIORITY_PREFERRED:
			s = "preferred";
			break;
		case PNP_RES_PRIORITY_ACCEPTABLE:
			s = "acceptable";
			break;
		case PNP_RES_PRIORITY_FUNCTIONAL:
			s = "functional";
			break;
		default:
			s = "invalid";
		}
		pnp_printf(buffer, "Dependent: %02i - Priority %s\n", dep, s);
	}

	for (port = option->port; port; port = port->next)
		pnp_print_port(buffer, space, port);
	for (irq = option->irq; irq; irq = irq->next)
		pnp_print_irq(buffer, space, irq);
	for (dma = option->dma; dma; dma = dma->next)
		pnp_print_dma(buffer, space, dma);
	for (mem = option->mem; mem; mem = mem->next)
		pnp_print_mem(buffer, space, mem);
}

static ssize_t pnp_show_options(struct device *dmdev,
				struct device_attribute *attr, char *buf)
{
	struct pnp_dev *dev = to_pnp_dev(dmdev);
	pnp_info_buffer_t *buffer;
	struct pnp_option *independent = dev->independent;
	struct pnp_option *dependent = dev->dependent;
	int ret, dep = 1;

	buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
	if (!buffer)
		return -ENOMEM;

	buffer->len = PAGE_SIZE;
	buffer->buffer = buf;
	buffer->curr = buffer->buffer;
	if (independent)
		pnp_print_option(buffer, "", independent, 0);

	while (dependent) {
		pnp_print_option(buffer, "   ", dependent, dep);
		dependent = dependent->next;
		dep++;
	}
	ret = (buffer->curr - buf);
	kfree(buffer);
	return ret;
}

static DEVICE_ATTR(options, S_IRUGO, pnp_show_options, NULL);

static ssize_t pnp_show_current_resources(struct device *dmdev,
					  struct device_attribute *attr,
					  char *buf)
{
	struct pnp_dev *dev = to_pnp_dev(dmdev);
	pnp_info_buffer_t *buffer;
	struct pnp_resource *pnp_res;
	struct resource *res;
	int ret;

	if (!dev)
		return -EINVAL;

	buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
	if (!buffer)
		return -ENOMEM;

	buffer->len = PAGE_SIZE;
	buffer->buffer = buf;
	buffer->curr = buffer->buffer;

	pnp_printf(buffer, "state = %s\n", dev->active ? "active" : "disabled");

	list_for_each_entry(pnp_res, &dev->resources, list) {
		res = &pnp_res->res;

		pnp_printf(buffer, pnp_resource_type_name(res));

		if (res->flags & IORESOURCE_DISABLED) {
			pnp_printf(buffer, " disabled\n");
			continue;
		}

		switch (pnp_resource_type(res)) {
		case IORESOURCE_IO:
		case IORESOURCE_MEM:
			pnp_printf(buffer, " %#llx-%#llx\n",
				   (unsigned long long) res->start,
				   (unsigned long long) res->end);
			break;
		case IORESOURCE_IRQ:
		case IORESOURCE_DMA:
			pnp_printf(buffer, " %lld\n",
				   (unsigned long long) res->start);
			break;
		}
	}

	ret = (buffer->curr - buf);
	kfree(buffer);
	return ret;
}

static ssize_t pnp_set_current_resources(struct device *dmdev,
					 struct device_attribute *attr,
					 const char *ubuf, size_t count)
{
	struct pnp_dev *dev = to_pnp_dev(dmdev);
	char *buf = (void *)ubuf;
	int retval = 0;
	resource_size_t start, end;

	if (dev->status & PNP_ATTACHED) {
		retval = -EBUSY;
		dev_info(&dev->dev, "in use; can't configure\n");
		goto done;
	}

	while (isspace(*buf))
		++buf;
	if (!strnicmp(buf, "disable", 7)) {
		retval = pnp_disable_dev(dev);
		goto done;
	}
	if (!strnicmp(buf, "activate", 8)) {
		retval = pnp_activate_dev(dev);
		goto done;
	}
	if (!strnicmp(buf, "fill", 4)) {
		if (dev->active)
			goto done;
		retval = pnp_auto_config_dev(dev);
		goto done;
	}
	if (!strnicmp(buf, "auto", 4)) {
		if (dev->active)
			goto done;
		pnp_init_resources(dev);
		retval = pnp_auto_config_dev(dev);
		goto done;
	}
	if (!strnicmp(buf, "clear", 5)) {
		if (dev->active)
			goto done;
		pnp_init_resources(dev);
		goto done;
	}
	if (!strnicmp(buf, "get", 3)) {
		mutex_lock(&pnp_res_mutex);
		if (pnp_can_read(dev))
			dev->protocol->get(dev);
		mutex_unlock(&pnp_res_mutex);
		goto done;
	}
	if (!strnicmp(buf, "set", 3)) {
		if (dev->active)
			goto done;
		buf += 3;
		pnp_init_resources(dev);
		mutex_lock(&pnp_res_mutex);
		while (1) {
			while (isspace(*buf))
				++buf;
			if (!strnicmp(buf, "io", 2)) {
				buf += 2;
				while (isspace(*buf))
					++buf;
				start = simple_strtoul(buf, &buf, 0);
				while (isspace(*buf))
					++buf;
				if (*buf == '-') {
					buf += 1;
					while (isspace(*buf))
						++buf;
					end = simple_strtoul(buf, &buf, 0);
				} else
					end = start;
				pnp_add_io_resource(dev, start, end, 0);
				continue;
			}
			if (!strnicmp(buf, "mem", 3)) {
				buf += 3;
				while (isspace(*buf))
					++buf;
				start = simple_strtoul(buf, &buf, 0);
				while (isspace(*buf))
					++buf;
				if (*buf == '-') {
					buf += 1;
					while (isspace(*buf))
						++buf;
					end = simple_strtoul(buf, &buf, 0);
				} else
					end = start;
				pnp_add_mem_resource(dev, start, end, 0);
				continue;
			}
			if (!strnicmp(buf, "irq", 3)) {
				buf += 3;
				while (isspace(*buf))
					++buf;
				start = simple_strtoul(buf, &buf, 0);
				pnp_add_irq_resource(dev, start, 0);
				continue;
			}
			if (!strnicmp(buf, "dma", 3)) {
				buf += 3;
				while (isspace(*buf))
					++buf;
				start = simple_strtoul(buf, &buf, 0);
				pnp_add_dma_resource(dev, start, 0);
				continue;
			}
			break;
		}
		mutex_unlock(&pnp_res_mutex);
		goto done;
	}

done:
	if (retval < 0)
		return retval;
	return count;
}

static DEVICE_ATTR(resources, S_IRUGO | S_IWUSR,
		   pnp_show_current_resources, pnp_set_current_resources);

static ssize_t pnp_show_current_ids(struct device *dmdev,
				    struct device_attribute *attr, char *buf)
{
	char *str = buf;
	struct pnp_dev *dev = to_pnp_dev(dmdev);
	struct pnp_id *pos = dev->id;

	while (pos) {
		str += sprintf(str, "%s\n", pos->id);
		pos = pos->next;
	}
	return (str - buf);
}

static DEVICE_ATTR(id, S_IRUGO, pnp_show_current_ids, NULL);

int pnp_interface_attach_device(struct pnp_dev *dev)
{
	int rc = device_create_file(&dev->dev, &dev_attr_options);

	if (rc)
		goto err;
	rc = device_create_file(&dev->dev, &dev_attr_resources);
	if (rc)
		goto err_opt;
	rc = device_create_file(&dev->dev, &dev_attr_id);
	if (rc)
		goto err_res;

	return 0;

err_res:
	device_remove_file(&dev->dev, &dev_attr_resources);
err_opt:
	device_remove_file(&dev->dev, &dev_attr_options);
err:
	return rc;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* interface.c - contains everything related to the user interface
	3	*
c1017a4c	4	* Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz>
1da177e4	5	* Copyright 2002 Adam Belay <ambx1@neo.rr.com>
1da177e4 LT	6	*/
	7
	8	#include <linux/pnp.h>
	9	#include <linux/string.h>
	10	#include <linux/errno.h>
	11	#include <linux/list.h>
	12	#include <linux/types.h>
b3bd86e2	13	#include <linux/pnp.h>
1da177e4 LT	14	#include <linux/stat.h>
	15	#include <linux/ctype.h>
	16	#include <linux/slab.h>
b3bd86e2 DW	17	#include <linux/mutex.h>
b3bd86e2 DW	18
1da177e4 LT	19	#include <asm/uaccess.h>
	20
	21	#include "base.h"
	22
	23	struct pnp_info_buffer {
	24	char buffer; / pointer to begin of buffer */
	25	char curr; / current position in buffer */
	26	unsigned long size; /* current size */
	27	unsigned long len; /* total length of buffer */
	28	int stop; /* stop flag */
	29	int error; /* error code */
	30	};
	31
	32	typedef struct pnp_info_buffer pnp_info_buffer_t;
	33
9dd78466	34	static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...)
1da177e4 LT	35	{
	36	va_list args;
	37	int res;
	38
	39	if (buffer->stop \|\| buffer->error)
	40	return 0;
	41	va_start(args, fmt);
	42	res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
	43	va_end(args);
	44	if (buffer->size + res >= buffer->len) {
	45	buffer->stop = 1;
	46	return 0;
	47	}
	48	buffer->curr += res;
	49	buffer->size += res;
	50	return res;
	51	}
	52
9dd78466 BH	53	static void pnp_print_port(pnp_info_buffer_t * buffer, char *space,
9dd78466 BH	54	struct pnp_port *port)
1da177e4	55	{
169aaffe BH	56	pnp_printf(buffer, "%sport %#llx-%#llx, align %#llx, size %#llx, "
	57	"%i-bit address decoding\n", space,
	58	(unsigned long long) port->min,
	59	(unsigned long long) port->max,
	60	port->align ? ((unsigned long long) port->align - 1) : 0,
	61	(unsigned long long) port->size,
08c9f262	62	port->flags & IORESOURCE_IO_16BIT_ADDR ? 16 : 10);
1da177e4 LT	63	}
1da177e4 LT	64
9dd78466 BH	65	static void pnp_print_irq(pnp_info_buffer_t * buffer, char *space,
9dd78466 BH	66	struct pnp_irq *irq)
1da177e4 LT	67	{
	68	int first = 1, i;
	69
	70	pnp_printf(buffer, "%sirq ", space);
	71	for (i = 0; i < PNP_IRQ_NR; i++)
7aefff51	72	if (test_bit(i, irq->map.bits)) {
1da177e4 LT	73	if (!first) {
	74	pnp_printf(buffer, ",");
	75	} else {
	76	first = 0;
	77	}
	78	if (i == 2 \|\| i == 9)
	79	pnp_printf(buffer, "2/9");
	80	else
	81	pnp_printf(buffer, "%i", i);
	82	}
7aefff51	83	if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
1da177e4 LT	84	pnp_printf(buffer, "<none>");
	85	if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
	86	pnp_printf(buffer, " High-Edge");
	87	if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
	88	pnp_printf(buffer, " Low-Edge");
	89	if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
	90	pnp_printf(buffer, " High-Level");
	91	if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
	92	pnp_printf(buffer, " Low-Level");
d5ebde6e BH	93	if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
d5ebde6e BH	94	pnp_printf(buffer, " (optional)");
1da177e4 LT	95	pnp_printf(buffer, "\n");
	96	}
	97
9dd78466 BH	98	static void pnp_print_dma(pnp_info_buffer_t * buffer, char *space,
9dd78466 BH	99	struct pnp_dma *dma)
1da177e4 LT	100	{
	101	int first = 1, i;
	102	char *s;
	103
	104	pnp_printf(buffer, "%sdma ", space);
	105	for (i = 0; i < 8; i++)
9dd78466	106	if (dma->map & (1 << i)) {
1da177e4 LT	107	if (!first) {
	108	pnp_printf(buffer, ",");
	109	} else {
	110	first = 0;
	111	}
	112	pnp_printf(buffer, "%i", i);
	113	}
	114	if (!dma->map)
	115	pnp_printf(buffer, "<none>");
	116	switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
	117	case IORESOURCE_DMA_8BIT:
	118	s = "8-bit";
	119	break;
	120	case IORESOURCE_DMA_8AND16BIT:
	121	s = "8-bit&16-bit";
	122	break;
	123	default:
	124	s = "16-bit";
	125	}
	126	pnp_printf(buffer, " %s", s);
	127	if (dma->flags & IORESOURCE_DMA_MASTER)
	128	pnp_printf(buffer, " master");
	129	if (dma->flags & IORESOURCE_DMA_BYTE)
	130	pnp_printf(buffer, " byte-count");
	131	if (dma->flags & IORESOURCE_DMA_WORD)
	132	pnp_printf(buffer, " word-count");
	133	switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
	134	case IORESOURCE_DMA_TYPEA:
	135	s = "type-A";
	136	break;
	137	case IORESOURCE_DMA_TYPEB:
	138	s = "type-B";
	139	break;
	140	case IORESOURCE_DMA_TYPEF:
	141	s = "type-F";
	142	break;
	143	default:
	144	s = "compatible";
	145	break;
	146	}
	147	pnp_printf(buffer, " %s\n", s);
	148	}
	149
9dd78466 BH	150	static void pnp_print_mem(pnp_info_buffer_t * buffer, char *space,
9dd78466 BH	151	struct pnp_mem *mem)
1da177e4 LT	152	{
	153	char *s;
	154
169aaffe BH	155	pnp_printf(buffer, "%sMemory %#llx-%#llx, align %#llx, size %#llx",
	156	space, (unsigned long long) mem->min,
	157	(unsigned long long) mem->max,
	158	(unsigned long long) mem->align,
	159	(unsigned long long) mem->size);
1da177e4 LT	160	if (mem->flags & IORESOURCE_MEM_WRITEABLE)
	161	pnp_printf(buffer, ", writeable");
	162	if (mem->flags & IORESOURCE_MEM_CACHEABLE)
	163	pnp_printf(buffer, ", cacheable");
	164	if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
	165	pnp_printf(buffer, ", range-length");
	166	if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
	167	pnp_printf(buffer, ", shadowable");
	168	if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
	169	pnp_printf(buffer, ", expansion ROM");
	170	switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
	171	case IORESOURCE_MEM_8BIT:
	172	s = "8-bit";
	173	break;
	174	case IORESOURCE_MEM_8AND16BIT:
	175	s = "8-bit&16-bit";
	176	break;
	177	case IORESOURCE_MEM_32BIT:
	178	s = "32-bit";
	179	break;
	180	default:
	181	s = "16-bit";
	182	}
	183	pnp_printf(buffer, ", %s\n", s);
	184	}
	185
9dd78466	186	static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
1da177e4 LT	187	struct pnp_option *option, int dep)
	188	{
	189	char *s;
	190	struct pnp_port *port;
	191	struct pnp_irq *irq;
	192	struct pnp_dma *dma;
	193	struct pnp_mem *mem;
	194
	195	if (dep) {
	196	switch (option->priority) {
9dd78466	197	case PNP_RES_PRIORITY_PREFERRED:
1da177e4 LT	198	s = "preferred";
1da177e4 LT	199	break;
9dd78466	200	case PNP_RES_PRIORITY_ACCEPTABLE:
1da177e4 LT	201	s = "acceptable";
1da177e4 LT	202	break;
9dd78466	203	case PNP_RES_PRIORITY_FUNCTIONAL:
1da177e4 LT	204	s = "functional";
1da177e4 LT	205	break;
9dd78466	206	default:
1da177e4 LT	207	s = "invalid";
1da177e4 LT	208	}
9dd78466	209	pnp_printf(buffer, "Dependent: %02i - Priority %s\n", dep, s);
1da177e4 LT	210	}
	211
	212	for (port = option->port; port; port = port->next)
	213	pnp_print_port(buffer, space, port);
	214	for (irq = option->irq; irq; irq = irq->next)
	215	pnp_print_irq(buffer, space, irq);
	216	for (dma = option->dma; dma; dma = dma->next)
	217	pnp_print_dma(buffer, space, dma);
	218	for (mem = option->mem; mem; mem = mem->next)
	219	pnp_print_mem(buffer, space, mem);
	220	}
	221
9dd78466 BH	222	static ssize_t pnp_show_options(struct device *dmdev,
9dd78466 BH	223	struct device_attribute attr, char buf)
1da177e4 LT	224	{
1da177e4 LT	225	struct pnp_dev *dev = to_pnp_dev(dmdev);
b72ee1f1	226	pnp_info_buffer_t *buffer;
9dd78466 BH	227	struct pnp_option *independent = dev->independent;
9dd78466 BH	228	struct pnp_option *dependent = dev->dependent;
1da177e4 LT	229	int ret, dep = 1;
1da177e4 LT	230
b72ee1f1	231	buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
1da177e4 LT	232	if (!buffer)
	233	return -ENOMEM;
	234
	235	buffer->len = PAGE_SIZE;
	236	buffer->buffer = buf;
	237	buffer->curr = buffer->buffer;
	238	if (independent)
	239	pnp_print_option(buffer, "", independent, 0);
	240
9dd78466	241	while (dependent) {
1da177e4 LT	242	pnp_print_option(buffer, " ", dependent, dep);
	243	dependent = dependent->next;
	244	dep++;
	245	}
	246	ret = (buffer->curr - buf);
	247	kfree(buffer);
	248	return ret;
	249	}
	250
9dd78466	251	static DEVICE_ATTR(options, S_IRUGO, pnp_show_options, NULL);
1da177e4	252
9dd78466 BH	253	static ssize_t pnp_show_current_resources(struct device *dmdev,
	254	struct device_attribute *attr,
	255	char *buf)
1da177e4 LT	256	{
1da177e4 LT	257	struct pnp_dev *dev = to_pnp_dev(dmdev);
b72ee1f1	258	pnp_info_buffer_t *buffer;
f61ed7e3	259	struct pnp_resource *pnp_res;
95ab3669	260	struct resource *res;
f61ed7e3	261	int ret;
1da177e4 LT	262
	263	if (!dev)
	264	return -EINVAL;
	265
b72ee1f1	266	buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
1da177e4 LT	267	if (!buffer)
1da177e4 LT	268	return -ENOMEM;
b72ee1f1	269
1da177e4 LT	270	buffer->len = PAGE_SIZE;
	271	buffer->buffer = buf;
	272	buffer->curr = buffer->buffer;
	273
f61ed7e3	274	pnp_printf(buffer, "state = %s\n", dev->active ? "active" : "disabled");
1da177e4	275
f61ed7e3 BH	276	list_for_each_entry(pnp_res, &dev->resources, list) {
	277	res = &pnp_res->res;
	278
	279	pnp_printf(buffer, pnp_resource_type_name(res));
	280
	281	if (res->flags & IORESOURCE_DISABLED) {
aee3ad81	282	pnp_printf(buffer, " disabled\n");
f61ed7e3 BH	283	continue;
	284	}
	285
	286	switch (pnp_resource_type(res)) {
	287	case IORESOURCE_IO:
	288	case IORESOURCE_MEM:
	289	pnp_printf(buffer, " %#llx-%#llx\n",
aee3ad81 BH	290	(unsigned long long) res->start,
aee3ad81 BH	291	(unsigned long long) res->end);
f61ed7e3 BH	292	break;
	293	case IORESOURCE_IRQ:
	294	case IORESOURCE_DMA:
aee3ad81 BH	295	pnp_printf(buffer, " %lld\n",
aee3ad81 BH	296	(unsigned long long) res->start);
f61ed7e3 BH	297	break;
f61ed7e3 BH	298	}
1da177e4	299	}
f61ed7e3	300
1da177e4 LT	301	ret = (buffer->curr - buf);
	302	kfree(buffer);
	303	return ret;
	304	}
	305
b72ee1f1 BH	306	static ssize_t pnp_set_current_resources(struct device *dmdev,
	307	struct device_attribute *attr,
	308	const char *ubuf, size_t count)
1da177e4 LT	309	{
1da177e4 LT	310	struct pnp_dev *dev = to_pnp_dev(dmdev);
9dd78466 BH	311	char buf = (void )ubuf;
9dd78466 BH	312	int retval = 0;
cc8c2e30	313	resource_size_t start, end;
1da177e4 LT	314
	315	if (dev->status & PNP_ATTACHED) {
	316	retval = -EBUSY;
a05d0781	317	dev_info(&dev->dev, "in use; can't configure\n");
1da177e4 LT	318	goto done;
	319	}
	320
	321	while (isspace(*buf))
	322	++buf;
9dd78466	323	if (!strnicmp(buf, "disable", 7)) {
1da177e4 LT	324	retval = pnp_disable_dev(dev);
	325	goto done;
	326	}
9dd78466	327	if (!strnicmp(buf, "activate", 8)) {
1da177e4 LT	328	retval = pnp_activate_dev(dev);
	329	goto done;
	330	}
9dd78466	331	if (!strnicmp(buf, "fill", 4)) {
1da177e4 LT	332	if (dev->active)
	333	goto done;
	334	retval = pnp_auto_config_dev(dev);
	335	goto done;
	336	}
9dd78466	337	if (!strnicmp(buf, "auto", 4)) {
1da177e4 LT	338	if (dev->active)
1da177e4 LT	339	goto done;
f4490002	340	pnp_init_resources(dev);
1da177e4 LT	341	retval = pnp_auto_config_dev(dev);
	342	goto done;
	343	}
9dd78466	344	if (!strnicmp(buf, "clear", 5)) {
1da177e4 LT	345	if (dev->active)
1da177e4 LT	346	goto done;
f4490002	347	pnp_init_resources(dev);
1da177e4 LT	348	goto done;
1da177e4 LT	349	}
9dd78466	350	if (!strnicmp(buf, "get", 3)) {
b3bd86e2	351	mutex_lock(&pnp_res_mutex);
1da177e4	352	if (pnp_can_read(dev))
59284cb4	353	dev->protocol->get(dev);
b3bd86e2	354	mutex_unlock(&pnp_res_mutex);
1da177e4 LT	355	goto done;
1da177e4 LT	356	}
9dd78466	357	if (!strnicmp(buf, "set", 3)) {
1da177e4 LT	358	if (dev->active)
	359	goto done;
	360	buf += 3;
f4490002	361	pnp_init_resources(dev);
b3bd86e2	362	mutex_lock(&pnp_res_mutex);
1da177e4 LT	363	while (1) {
	364	while (isspace(*buf))
	365	++buf;
9dd78466	366	if (!strnicmp(buf, "io", 2)) {
1da177e4 LT	367	buf += 2;
	368	while (isspace(*buf))
	369	++buf;
cc8c2e30	370	start = simple_strtoul(buf, &buf, 0);
1da177e4 LT	371	while (isspace(*buf))
1da177e4 LT	372	++buf;
9dd78466	373	if (*buf == '-') {
1da177e4 LT	374	buf += 1;
	375	while (isspace(*buf))
	376	++buf;
cc8c2e30	377	end = simple_strtoul(buf, &buf, 0);
1da177e4	378	} else
cc8c2e30	379	end = start;
87e4acf3	380	pnp_add_io_resource(dev, start, end, 0);
1da177e4 LT	381	continue;
1da177e4 LT	382	}
9dd78466	383	if (!strnicmp(buf, "mem", 3)) {
1da177e4 LT	384	buf += 3;
	385	while (isspace(*buf))
	386	++buf;
d6180f36	387	start = simple_strtoul(buf, &buf, 0);
1da177e4 LT	388	while (isspace(*buf))
1da177e4 LT	389	++buf;
9dd78466	390	if (*buf == '-') {
1da177e4 LT	391	buf += 1;
	392	while (isspace(*buf))
	393	++buf;
d6180f36	394	end = simple_strtoul(buf, &buf, 0);
1da177e4	395	} else
d6180f36	396	end = start;
87e4acf3	397	pnp_add_mem_resource(dev, start, end, 0);
1da177e4 LT	398	continue;
1da177e4 LT	399	}
9dd78466	400	if (!strnicmp(buf, "irq", 3)) {
1da177e4 LT	401	buf += 3;
	402	while (isspace(*buf))
	403	++buf;
dbddd038	404	start = simple_strtoul(buf, &buf, 0);
87e4acf3	405	pnp_add_irq_resource(dev, start, 0);
1da177e4 LT	406	continue;
1da177e4 LT	407	}
9dd78466	408	if (!strnicmp(buf, "dma", 3)) {
1da177e4 LT	409	buf += 3;
	410	while (isspace(*buf))
	411	++buf;
dc16f5f2	412	start = simple_strtoul(buf, &buf, 0);
87e4acf3	413	pnp_add_dma_resource(dev, start, 0);
1da177e4 LT	414	continue;
	415	}
	416	break;
	417	}
b3bd86e2	418	mutex_unlock(&pnp_res_mutex);
1da177e4 LT	419	goto done;
1da177e4 LT	420	}
1e0aa9ad BH	421
1e0aa9ad BH	422	done:
1da177e4 LT	423	if (retval < 0)
	424	return retval;
	425	return count;
	426	}
	427
9dd78466 BH	428	static DEVICE_ATTR(resources, S_IRUGO \| S_IWUSR,
9dd78466 BH	429	pnp_show_current_resources, pnp_set_current_resources);
1da177e4	430
9dd78466 BH	431	static ssize_t pnp_show_current_ids(struct device *dmdev,
9dd78466 BH	432	struct device_attribute attr, char buf)
1da177e4 LT	433	{
	434	char *str = buf;
	435	struct pnp_dev *dev = to_pnp_dev(dmdev);
9dd78466	436	struct pnp_id *pos = dev->id;
1da177e4 LT	437
1da177e4 LT	438	while (pos) {
9dd78466	439	str += sprintf(str, "%s\n", pos->id);
1da177e4 LT	440	pos = pos->next;
	441	}
	442	return (str - buf);
	443	}
	444
9dd78466	445	static DEVICE_ATTR(id, S_IRUGO, pnp_show_current_ids, NULL);
1da177e4 LT	446
	447	int pnp_interface_attach_device(struct pnp_dev *dev)
	448	{
9dd78466	449	int rc = device_create_file(&dev->dev, &dev_attr_options);
07d4e9af	450
9dd78466 BH	451	if (rc)
	452	goto err;
	453	rc = device_create_file(&dev->dev, &dev_attr_resources);
	454	if (rc)
	455	goto err_opt;
	456	rc = device_create_file(&dev->dev, &dev_attr_id);
	457	if (rc)
	458	goto err_res;
bfc7ee20	459
1da177e4	460	return 0;
bfc7ee20	461
1e0aa9ad	462	err_res:
9dd78466	463	device_remove_file(&dev->dev, &dev_attr_resources);
1e0aa9ad	464	err_opt:
9dd78466	465	device_remove_file(&dev->dev, &dev_attr_options);
1e0aa9ad	466	err:
bfc7ee20	467	return rc;
1da177e4	468	}