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/* $OpenBSD: pciide_ixp_reg.h,v 1.2 2008/06/26 05:42:17 ray Exp $ */
/* $NetBSD: pciide_ixp_reg.h,v 1.2 2005/02/27 00:27:33 perry Exp $ */
/*
* Copyright (c) 2004 The NetBSD Foundation.
* All rights reserved.
*
* This code is derived from software contributed to the NetBSD Foundation
* by Quentin Garnier.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* All values gathered from the linux driver. */
#define IXP_PIO_TIMING 0x40
#define IXP_MDMA_TIMING 0x44
#define IXP_PIO_CTL 0x48
#define IXP_PIO_MODE 0x4a
#define IXP_UDMA_CTL 0x54
#define IXP_UDMA_MODE 0x56
static const uint8_t ixp_pio_timings[] = {
0x5d, 0x47, 0x34, 0x22, 0x20
};
static const uint8_t ixp_mdma_timings[] = {
0x77, 0x21, 0x20
};
/* First 4 bits of UDMA_CTL enable or disable UDMA for the drive */
#define IXP_UDMA_ENABLE(u, c, d) do { \
(u) |= (1 << (2 * (c) + (d))); \
} while (0)
#define IXP_UDMA_DISABLE(u, c, d) do { \
(u) &= ~(1 << (2 * (c) + (d))); \
} while (0)
/*
* UDMA_MODE has 4 bits per drive, though only 3 are actually used
* Note that in this macro u is the whole
* UDMA_CTL+UDMA_MODE register (32bits).
* PIO_MODE works just the same.
*/
#define IXP_SET_MODE(u, c, d, m) do { \
int __ixpshift = 16 + 8*(c) + 4*(d); \
(u) &= ~(0x7 << __ixpshift); \
(u) |= (((m) & 0x7) << __ixpshift); \
} while (0)
/*
* MDMA_TIMING has one byte per drive.
* PIO_TIMING works just the same.
*/
#define IXP_SET_TIMING(m, c, d, t) do { \
int __ixpshift = 16*(c) + 8*(d); \
(m) &= ~(0xff << __ixpshift); \
(m) |= ((t) & 0xff) << __ixpshift; \
} while (0)
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