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      1 /*	$NetBSD: satapmpreg.h,v 1.6 2012/07/31 15:50:34 bouyer Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden of Wasabi Systems, Inc.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _DEV_ATA_SATAPMPREG_H_
     33 #define	_DEV_ATA_SATAPMPREG_H_
     34 
     35 /*
     36  * Global port multiplier registers, accessed through the control port.
     37  */
     38 
     39 #define PMP_GSCR_ID	0x00		/* product and vendor id */
     40 #define 	PMP_ID_DEV(x)	((x) >> 16)
     41 #define		PMP_ID_VEND(x)	((x) & 0xffff)
     42 #define PMP_GSCR_REV	0x01		/* revision */
     43 #define		PMP_REV_SPEC_10		0x02
     44 #define		PMP_REV_SPEC_11		0x04
     45 #define		PMP_REV_LEVEL(x)	(((x) >> 8) & 0xff)
     46 #define PMP_GSCR_INF	0x02		/* info */
     47 #define		PMP_INF_NPORTS(x)	((x) & 0xf)
     48 #define PMP_GSCR_ERR	0x20		/* error bit for each port */
     49 #define		PMP_ERR(p)		((1) << (p))
     50 #define PMP_GSCR_ERREN	0x21		/* error bit enable for each port */
     51 #define		PMP_ERREN(p)		((1) << (p))
     52 #define PMP_GSCR_FEAT	0x40		/* features */
     53 #define 	PMP_FEAT_BIST		0x01
     54 #define 	PMP_FEAT_PMREQ		0x01
     55 #define		PMP_FEAT_SCC		0x04
     56 #define		PMP_FEAT_ASYNC		0x08
     57 #define PMP_GSCR_FEATEN	0x60		/* feature enable, bits as above */
     58 
     59 #define PMP_GSCR_VENDSTART 0x80		/* start of vendor unique registers */
     60 
     61 #define PMP_GSCR_NREGS	256
     62 
     63 /*
     64  * Port status and control registers (per port)
     65  */
     66 #define PMP_PSCR_SStatus	0x00
     67 #define PMP_PSCR_SError		0x01
     68 #define PMP_PSCR_SControl	0x02
     69 #define PMP_PSCR_SActive	0x03
     70 
     71 /*
     72  * Control port as defined in the spec.
     73  */
     74 #define PMP_PORT_CTL		0x0f
     75 
     76 /*
     77  * Device commands for port multipliers
     78  */
     79 #define PMPC_READ_PORT		0xe4
     80 #define PMPC_WRITE_PORT		0xe8
     81 
     82 /* max number of drives (last one being the PM itself */
     83 #define PMP_MAX_DRIVES		16
     84 
     85 #endif /* _DEV_ATA_SATAPMPREG_H_ */
     86