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

/*
 * support.c - provides standard pnp functions for the use of pnp protocol drivers,
 *
 * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
 *
 */

#include <linux/config.h>
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/pnp.h>
#include "base.h"

/**
 * pnp_is_active - Determines if a device is active based on its current resources
 * @dev: pointer to the desired PnP device
 *
 */

int pnp_is_active(struct pnp_dev * dev)
{
	if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
	    !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
	    pnp_irq(dev, 0) == -1 &&
	    pnp_dma(dev, 0) == -1)
	    	return 0;
	else
		return 1;
}


EXPORT_SYMBOL(pnp_is_active);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* support.c - provides standard pnp functions for the use of pnp protocol drivers,
	3	*
	4	* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
	5	*
	6	*/
	7
	8	#include <linux/config.h>
	9	#include <linux/module.h>
	10	#include <linux/ctype.h>
1da177e4 LT	11	#include <linux/pnp.h>
	12	#include "base.h"
	13
	14	/**
	15	* pnp_is_active - Determines if a device is active based on its current resources
	16	* @dev: pointer to the desired PnP device
	17	*
	18	*/
	19
	20	int pnp_is_active(struct pnp_dev * dev)
	21	{
	22	if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
	23	!pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
	24	pnp_irq(dev, 0) == -1 &&
	25	pnp_dma(dev, 0) == -1)
	26	return 0;
	27	else
	28	return 1;
	29	}
	30
	31
	32
	33	EXPORT_SYMBOL(pnp_is_active);