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pciide_acer_reg.h revision 1.1 
      1 /*	$NetBSD: pciide_acer_reg.h,v 1.1 1999/02/02 16:13:59 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 REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  */
     35 
     36 /*  class code attribute register 1 (1 byte) */
     37 #define ACER_CCAR1	0x43
     38 #define ACER_CHANSTATUS_RO            0x40
     39 #define PCIIDE_CHAN_RO(chan)            (0x20 >> (chan))
     40 
     41 /* class code attribute register 2 (1 byte) */
     42 #define ACER_CCAR2	0x4d
     43 #define ACER_CHANSTATUSREGS_RO 0x80
     44 
     45 /* class code attribute register 3 (1 byte) */
     46 #define ACER_CCAR3	0x50
     47 #define ACER_CCAR3_PI	0x02
     48 
     49 /* flexible channel setting register */
     50 #define ACER_FCS	0x52
     51 #define ACER_FCS_TIMREG(chan,drv)	((0x8) >> ((drv) + (chan) * 2))
     52 
     53 /* CD-ROM control register */
     54 #define ACER_CDRC	0x53
     55 #define ACER_CDRC_FIFO_DISABLE	0x02
     56 #define ACER_CDRC_DMA_EN	0x01
     57 
     58 /* Fifo threshold and Ultra-DMA settings (4 bytes). */
     59 #define ACER_FTH_UDMA	0x54
     60 #define ACER_FTH_VAL(chan, drv, val) \
     61 	(((val) & 0x3) << ((drv) * 4 + (chan) * 8))
     62 #define ACER_FTH_OPL(chan, drv, val) \
     63 	(((val) & 0x3) << (2 + (drv) * 4 + (chan) * 8))
     64 #define ACER_UDMA_EN(chan, drv) \
     65 	(0x8 << (16 + (drv) * 4 + (chan) * 8))
     66 #define ACER_UDMA_TIM(chan, drv, val) \
     67 	(((val) & 0x7) << (16 + (drv) * 4 + (chan) * 8))
     68 
     69 /* drives timings setup (1 byte) */
     70 #define ACER_IDETIM(chan, drv) (0x5a + (drv) + (chan) * 4)
     71 
     72 /*
     73  * IDE bus frequency (1 byte)
     74  * This should be setup by the BIOS - can we rely on this ?
     75  */
     76 #define ACER_IDE_CLK	0x78
     77 
     78 static int8_t acer_udma[] = {0x4, 0x3, 0x2};
     79 static int8_t acer_pio[] = {0x0c, 0x58, 0x44, 0x33, 0x31};
     80 #ifdef unused
     81 static int8_t acer_dma[] = {0x08, 0x33, 0x31};
     82 #endif
     83