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pciide_acer_reg.h revision 1.3 
      1 /*	$NetBSD: pciide_acer_reg.h,v 1.3 2000/05/15 08:46:01 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by the University of
     17  *	California, Berkeley and its contributors.
     18  * 4. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /*  class code attribute register 1 (1 byte) */
     36 #define ACER_CCAR1	0x43
     37 #define ACER_CHANSTATUS_RO            0x40
     38 #define PCIIDE_CHAN_RO(chan)            (0x20 >> (chan))
     39 
     40 /* class code attribute register 2 (1 byte) */
     41 #define ACER_CCAR2	0x4d
     42 #define ACER_CHANSTATUSREGS_RO 0x80
     43 
     44 /* class code attribute register 3 (1 byte) */
     45 #define ACER_CCAR3	0x50
     46 #define ACER_CCAR3_PI	0x02
     47 
     48 /* flexible channel setting register */
     49 #define ACER_FCS	0x52
     50 #define ACER_FCS_TIMREG(chan,drv)	((0x8) >> ((drv) + (chan) * 2))
     51 
     52 /* CD-ROM control register */
     53 #define ACER_CDRC	0x53
     54 #define ACER_CDRC_FIFO_DISABLE	0x02
     55 #define ACER_CDRC_DMA_EN	0x01
     56 
     57 /* Fifo threshold and Ultra-DMA settings (4 bytes). */
     58 #define ACER_FTH_UDMA	0x54
     59 #define ACER_FTH_VAL(chan, drv, val) \
     60 	(((val) & 0x3) << ((drv) * 4 + (chan) * 8))
     61 #define ACER_FTH_OPL(chan, drv, val) \
     62 	(((val) & 0x3) << (2 + (drv) * 4 + (chan) * 8))
     63 #define ACER_UDMA_EN(chan, drv) \
     64 	(0x8 << (16 + (drv) * 4 + (chan) * 8))
     65 #define ACER_UDMA_TIM(chan, drv, val) \
     66 	(((val) & 0x7) << (16 + (drv) * 4 + (chan) * 8))
     67 
     68 /* drives timings setup (1 byte) */
     69 #define ACER_IDETIM(chan, drv) (0x5a + (drv) + (chan) * 4)
     70 
     71 /* IRQ and drive select status */
     72 #define ACER_CHIDS	0x75
     73 #define ACER_CHIDS_DRV(channel)	((0x4) << (channel))
     74 #define ACER_CHIDS_INT(channel)	((0x1) << (channel))
     75 
     76 /*
     77  * IDE bus frequency (1 byte)
     78  * This should be setup by the BIOS - can we rely on this ?
     79  */
     80 #define ACER_IDE_CLK	0x78
     81 
     82 static int8_t acer_udma[] = {0x4, 0x3, 0x2};
     83 static int8_t acer_pio[] = {0x0c, 0x58, 0x44, 0x33, 0x31};
     84 #ifdef unused
     85 static int8_t acer_dma[] = {0x08, 0x33, 0x31};
     86 #endif
     87