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/* $OpenBSD: pciide_sis_reg.h,v 1.4 2003/05/02 09:33:33 grange Exp $ */
/* $NetBSD: pciide_sis_reg.h,v 1.6 2000/05/15 08:46:01 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 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.
*
*/
/*
* Registers definitions for SiS SiS5597/98 PCI IDE controller.
* Available from http://www.sis.com.tw/html/databook.html
*/
/* IDE timing control registers (32 bits), for all but 96x */
#define SIS_TIM(channel) (0x40 + (channel * 4))
/* for 730, 630 and older (66, 100OLD) */
#define SIS_TIM66_REC_OFF(drive) (16 * (drive))
#define SIS_TIM66_ACT_OFF(drive) (8 + 16 * (drive))
#define SIS_TIM66_UDMA_TIME_OFF(drive) (12 + 16 * (drive))
/* for older than 96x (100NEW, 133OLD) */
#define SIS_TIM100_REC_OFF(drive) (16 * (drive))
#define SIS_TIM100_ACT_OFF(drive) (4 + 16 * (drive))
#define SIS_TIM100_UDMA_TIME_OFF(drive) (8 + 16 * (drive))
/*
* From FreeBSD: on 96x, the timing registers may start from 0x40 or 0x70
* depending on the value from register 0x57. 32bits of timing info for
* each drive.
*/
#define SIS_TIM133(reg57, channel, drive) \
((((reg57) & 0x40) ? 0x70 : 0x40) + ((channel) << 3) + ((drive) << 2))
/* IDE general control register 0 (8 bits) */
#define SIS_CTRL0 0x4a
#define SIS_CTRL0_PCIBURST 0x80
#define SIS_CTRL0_FAST_PW 0x20
#define SIS_CTRL0_BO 0x08
#define SIS_CTRL0_CHAN0_EN 0x02 /* manual (v2.0) is wrong!!! */
#define SIS_CTRL0_CHAN1_EN 0x04 /* manual (v2.0) is wrong!!! */
/* IDE general control register 1 (8 bits) */
#define SIS_CTRL1 0x4b
#define SIS_CTRL1_POSTW_EN(chan, drv) (0x10 << ((drv) + 2 * (chan)))
#define SIS_CTRL1_PREFETCH_EN(chan, drv) (0x01 << ((drv) + 2 * (chan)))
/* IDE misc control register (8 bit) */
#define SIS_MISC 0x52
#define SIS_MISC_TIM_SEL 0x08
#define SIS_MISC_GTC 0x04
#define SIS_MISC_FIFO_SIZE 0x01
/* following are from FreeBSD (sorry, no description) */
#define SIS_REG_49 0x49
#define SIS_REG_50 0x50
#define SIS_REG_51 0x51
#define SIS_REG_52 0x52
#define SIS_REG_53 0x53
#define SIS_REG_57 0x57
#define SIS_REG_CBL 0x48
#define SIS_REG_CBL_33(channel) (0x10 << (channel))
#define SIS96x_REG_CBL(channel) (0x51 + (channel) * 2)
#define SIS96x_REG_CBL_33 0x80
#define SIS_PRODUCT_5518 0x5518
/* timings values, mostly from FreeBSD */
/* PIO timings, for all up to 133NEW */
static const u_int8_t sis_pio_act[] =
{12, 6, 4, 3, 3};
static const u_int8_t sis_pio_rec[] =
{11, 7, 4, 3, 1};
/* DMA timings for 66 and 100OLD */
static const u_int8_t sis_udma66_tim[] =
{15, 13, 11, 10, 9, 8};
/* DMA timings for 100NEW */
static const u_int8_t sis_udma100new_tim[] =
{0x8b, 0x87, 0x85, 0x84, 0x82, 0x81};
/* DMA timings for 133OLD */
static const u_int8_t sis_udma133old_tim[] =
{0x8f, 0x8a, 0x87, 0x85, 0x83, 0x82, 0x81};
/* PIO, DMA and UDMA timings for 133NEW */
static const u_int32_t sis_pio133new_tim[] =
{0x28269008, 0x0c266008, 0x4263008, 0x0c0a3008, 0x05093008};
static const u_int32_t sis_dma133new_tim[] =
{0x22196008, 0x0c0a3008, 0x05093008};
static const u_int32_t sis_udma133new_tim[] =
{0x9f4, 0x64a, 0x474, 0x254, 0x234, 0x224, 0x214};
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