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pciide_ixp_reg.h revision 1.1 
      1 /* $NetBSD: pciide_ixp_reg.h,v 1.1 2004/12/06 19:22:24 cube Exp $ */
      2 
      3 /*
      4  *  Copyright (c) 2004 The NetBSD Foundation.
      5  *  All rights reserved.
      6  *
      7  *  This code is derived from software contributed to the NetBSD Foundation
      8  *  by Quentin Garnier.
      9  *
     10  *  Redistribution and use in source and binary forms, with or without
     11  *  modification, are permitted provided that the following conditions
     12  *  are met:
     13  *  1. Redistributions of source code must retain the above copyright
     14  *     notice, this list of conditions and the following disclaimer.
     15  *  2. Redistributions in binary form must reproduce the above copyright
     16  *     notice, this list of conditions and the following disclaimer in the
     17  *     documentation and/or other materials provided with the distribution.
     18  *  3. All advertising materials mentioning features or use of this software
     19  *     must display the following acknowledgement:
     20  *         This product includes software developed by the NetBSD
     21  *         Foundation, Inc. and its contributors.
     22  *  4. Neither the name of The NetBSD Foundation nor the names of its
     23  *     contributors may be used to endorse or promote products derived
     24  *     from this software without specific prior written permission.
     25  *
     26  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  *  POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /* All values gathered from the linux driver. */
     40 
     41 #define IXP_PIO_TIMING	0x40
     42 #define IXP_MDMA_TIMING	0x44
     43 #define IXP_PIO_CTL	0x48
     44 #define IXP_PIO_MODE	0x4a
     45 #define IXP_UDMA_CTL	0x54
     46 #define IXP_UDMA_MODE	0x56
     47 
     48 /* First 4 bits of UDMA_CTL enable or disable UDMA for the drive */
     49 #define IXP_UDMA_ENABLE(u, c, d)	do {	\
     50     	(u) |= (1 << (2 * (c) + (d)));		\
     51     } while (0)
     52 #define IXP_UDMA_DISABLE(u, c, d)	do {	\
     53     	(u) &= ~(1 << (2 * (c) + (d)));		\
     54     } while (0)
     55 
     56 /*
     57  * UDMA_MODE has 4 bits per drive, though only 3 are actually used
     58  * Note that in this macro u is the whole
     59  * UDMA_CTL+UDMA_MODE register (32bits).
     60  * PIO_MODE works just the same.
     61  */
     62 #define IXP_SET_MODE(u, c, d, m)	do {	\
     63     	int __ixpshift = 16 + 8*(c) + 4*(d);	\
     64     	(u) &= ~(0x7 << __ixpshift);		\
     65     	(u) |= (((m) & 0x7) << __ixpshift);	\
     66     } while (0)
     67 
     68 /*
     69  * MDMA_TIMING has one byte per drive.
     70  * PIO_TIMING works just the same.
     71  */
     72 #define IXP_SET_TIMING(m, c, d, t)	do {	\
     73         int __ixpshift = 16*(c) + 8*(d);	\
     74     	(m) &= ~(0xff << __ixpshift);		\
     75     	(m) |= ((t) & 0xff) << __ixpshift;	\
     76     } while (0)
     77