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