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/* $OpenBSD: pciide_piix_reg.h,v 1.1 1999/07/18 21:25:20 csapuntz Exp $ */
/* $NetBSD: pciide_piix_reg.h,v 1.2 1998/10/12 16:09:21 bouyer Exp $ */
/*
* Copyright (c) 1998 Manuel Bouyer.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*/
/*
* Registers definitions for Intel's PIIX serie PCI IDE controllers.
* See Intel's
* "82371FB (PIIX) and 82371SB (PIIX3) PCI ISA IDE XCELERATOR" and
* "82371AB PCI-TO-ISA / IDE XCELERATOR (PIIX4)"
* available from http://www.intel.com/
*/
/*
* Bus master interface base address register
*/
#define PIIX_BMIBA 0x20
#define PIIX_BMIBA_ADDR(x) (x & 0x0000FFFF0)
#define PIIX_BMIBA_RTE(x) (x & 0x000000001)
#define PIIX_BMIBA_RTE_IO 0x000000001 /* base addr maps to I/O space */
/*
* IDE timing register
* 0x40/0x41 is for primary, 0x42/0x43 for secondary channel
*/
#define PIIX_IDETIM 0x40
#define PIIX_IDETIM_READ(x, channel) (((x) >> (16 * (channel))) & 0x0000FFFF)
#define PIIX_IDETIM_SET(x, bytes, channel) \
((x) | ((bytes) << (16 * (channel))))
#define PIIX_IDETIM_CLEAR(x, bytes, channel) \
((x) & ~((bytes) << (16 * (channel))))
#define PIIX_IDETIM_IDE 0x8000 /* PIIX decode IDE registers */
#define PIIX_IDETIM_SITRE 0x4000 /* slaves IDE timing registers
enabled (PIIX3/4 only) */
#define PIIX_IDETIM_ISP_MASK 0x3000 /* IOrdy sample point */
#define PIIX_IDETIM_ISP_SHIFT 12
#define PIIX_IDETIM_ISP_SET(x) ((x) << PIIX_IDETIM_ISP_SHIFT)
#define PIIX_IDETIM_RTC_MASK 0x0300 /* recovery time */
#define PIIX_IDETIM_RTC_SHIFT 8
#define PIIX_IDETIM_RTC_SET(x) ((x) << PIIX_IDETIM_RTC_SHIFT)
#define PIIX_IDETIM_DTE(d) (0x0008 << (4 * (d))) /* DMA timing only */
#define PIIX_IDETIM_PPE(d) (0x0004 << (4 * (d))) /* prefetch/posting */
#define PIIX_IDETIM_IE(d) (0x0002 << (4 * (d))) /* IORDY enable */
#define PIIX_IDETIM_TIME(d) (0x0001 << (4 * (d))) /* Fast timing enable */
/*
* Slave IDE timing register (PIIX3/4 only)
* This register must be enabled via the PIIX_IDETIM_SITRE bit
*/
#define PIIX_SIDETIM 0x44
#define PIIX_SIDETIM_ISP_MASK(channel) (0x0c << ((channel) * 4))
#define PIIX_SIDETIM_ISP_SHIFT 2
#define PIIX_SIDETIM_ISP_SET(x, channel) \
(x << (PIIX_SIDETIM_ISP_SHIFT + ((channel) * 4)))
#define PIIX_SIDETIM_RTC_MASK(channel) (0x03 << ((channel) * 4))
#define PIIX_SIDETIM_RTC_SHIFT 0
#define PIIX_SIDETIM_RTC_SET(x, channel) \
(x << (PIIX_SIDETIM_RTC_SHIFT + ((channel) * 4)))
/*
* Ultra DMA/33 register (PIIX4 only)
*/
#define PIIX_UDMAREG 0x48
/* Control register */
#define PIIX_UDMACTL_DRV_EN(channel, drive) (0x01 << ((channel) * 2 + (drive)))
/* Ultra DMA/33 timing register (PIIX4 only) */
#define PIIX_UDMATIM_SHIFT 16
#define PIIX_UDMATIM_SET(x, channel, drive) \
(((x) << ((channel * 8) + (drive * 4))) << PIIX_UDMATIM_SHIFT)
/*
* these tables define the differents values to upload to the
* ISP and RTC registers for the various PIO and DMA mode
* (from the PIIX4 doc).
*/
static int8_t piix_isp_pio[] = {0x00, 0x00, 0x01, 0x02, 0x02};
static int8_t piix_rtc_pio[] = {0x00, 0x00, 0x00, 0x01, 0x03};
static int8_t piix_isp_dma[] = {0x00, 0x02, 0x02};
static int8_t piix_rtc_dma[] = {0x00, 0x02, 0x03};
static int8_t piix4_sct_udma[] = {0x00, 0x01, 0x02};
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