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/* $OpenBSD: pciide_acer_reg.h,v 1.5 2003/02/21 20:10:33 grange Exp $ */
/* $NetBSD: pciide_acer_reg.h,v 1.4 2001/07/26 20:02:22 bouyer Exp $ */
/*
* Copyright (c) 1999 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 Manuel Bouyer.
* 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 AUTHOR ``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 AUTHOR 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.
*
*/
/* class code attribute register 1 (1 byte) */
#define ACER_CCAR1 0x43
#define ACER_CHANSTATUS_RO 0x40
#define PCIIDE_CHAN_RO(chan) (0x20 >> (chan))
/* from Linux, 80 pins cable detect */
#define ACER_0x4A 0x4a
/*
* bit 0 is 0 -> primary has 80 pin cable
* bit 1 is 0 -> secondary has 80 pin cable
*/
#define ACER_0x4A_80PIN(chan) (0x1 << (chan))
/* From FreeBSD, for UDMA mode > 2 */
#define ACER_0x4B 0x4b
#define ACER_0x4B_UDMA66 0x01
/* From Linux */
#define ACER_0x4B_CDETECT 0x08
/* class code attribute register 2 (1 byte) */
#define ACER_CCAR2 0x4d
#define ACER_CHANSTATUSREGS_RO 0x80
/* class code attribute register 3 (1 byte) */
#define ACER_CCAR3 0x50
#define ACER_CCAR3_PI 0x02
/* flexible channel setting register */
#define ACER_FCS 0x52
#define ACER_FCS_TIMREG(chan,drv) ((0x8) >> ((drv) + (chan) * 2))
/* CD-ROM control register */
#define ACER_CDRC 0x53
#define ACER_CDRC_FIFO_DISABLE 0x02
#define ACER_CDRC_DMA_EN 0x01
/* Fifo threshold and Ultra-DMA settings (4 bytes). */
#define ACER_FTH_UDMA 0x54
#define ACER_FTH_VAL(chan, drv, val) \
(((val) & 0x3) << ((drv) * 4 + (chan) * 8))
#define ACER_FTH_OPL(chan, drv, val) \
(((val) & 0x3) << (2 + (drv) * 4 + (chan) * 8))
#define ACER_UDMA_EN(chan, drv) \
(0x8 << (16 + (drv) * 4 + (chan) * 8))
#define ACER_UDMA_TIM(chan, drv, val) \
(((val) & 0x7) << (16 + (drv) * 4 + (chan) * 8))
/* drives timings setup (1 byte) */
#define ACER_IDETIM(chan, drv) (0x5a + (drv) + (chan) * 4)
/* IRQ and drive select status */
#define ACER_CHIDS 0x75
#define ACER_CHIDS_DRV(channel) ((0x4) << (channel))
#define ACER_CHIDS_INT(channel) ((0x1) << (channel))
/* Linux: south-bridge's enable bit (m1533) */
#define ACER_0x79 0x79
#define ACER_0x79_REVC2_EN 0x4
#define ACER_0x79_EN 0x2
/*
* IDE bus frequency (1 byte)
* This should be setup by the BIOS - can we rely on this ?
*/
#define ACER_IDE_CLK 0x78
/* acer UDMA3/4/5 from FreeBSD */
static int8_t acer_udma[] = {0x4, 0x3, 0x2, 0x1, 0x0, 0x7};
static int8_t acer_pio[] = {0x0c, 0x58, 0x44, 0x33, 0x31};
#ifdef unused
static int8_t acer_dma[] = {0x08, 0x33, 0x31};
#endif
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