isapnp.h

这是linux内核C源代码58的源程序

/*
 *  ISA Plug & Play support
 *  Copyright (c) by Jaroslav Kysela <[e-mail]>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef LINUX_ISAPNP_H
#define LINUX_ISAPNP_H

#include <linux/config.h>
#include <linux/errno.h>

/*
 *  Configuration registers (TODO: change by specification)
 */ 

#define ISAPNP_CFG_ACTIVATE		0x30	/* byte */
#define ISAPNP_CFG_MEM			0x40	/* 4 * dword */
#define ISAPNP_CFG_PORT			0x60	/* 8 * word */
#define ISAPNP_CFG_IRQ			0x70	/* 2 * word */
#define ISAPNP_CFG_DMA			0x74	/* 2 * byte */

/*
 *
 */

#define ISAPNP_VENDOR(a,b,c)	(((((a)-'A'+1)&0x3f)<<2)|\
				((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
				((((c)-'A'+1)&0x1f)<<8))
#define ISAPNP_DEVICE(x)	((((x)&0xf000)>>8)|\
				 (((x)&0x0f00)>>8)|\
				 (((x)&0x00f0)<<8)|\
				 (((x)&0x000f)<<8))
#define ISAPNP_FUNCTION(x)	ISAPNP_DEVICE(x)

/*
 *
 */


#endif /* LINUX_ISAPNP_H */