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amrvar.h revision 1.1 
      1 /*	$NetBSD: amrvar.h,v 1.1 2002/01/30 14:35:45 ad Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef	_PCI_AMRVAR_H_
     40 #define	_PCI_AMRVAR_H_
     41 
     42 #include "locators.h"
     43 
     44 #define	AMR_MAX_UNITS	16
     45 
     46 /*
     47  * Logical drive information.
     48  */
     49 struct amr_logdrive {
     50 	u_int		al_size;
     51 	u_short		al_state;
     52 	u_short		al_properties;
     53 };
     54 
     55 /*
     56  * Per-controller state.
     57  */
     58 struct amr_softc {
     59 	/* Generic device data. */
     60 	struct device		amr_dv;
     61 	bus_space_tag_t		amr_iot;
     62 	bus_space_handle_t	amr_ioh;
     63 	bus_dma_tag_t		amr_dmat;
     64 	bus_dmamap_t		amr_dmamap;
     65 	void			*amr_ih;
     66 
     67 	/* Command mailbox. */
     68 	struct amr_mailbox	*amr_mbox;
     69 	bus_addr_t		amr_mbox_paddr;
     70 
     71 	/* Scatter-gather lists. */
     72 	struct amr_sgentry	*amr_sgls;
     73 	bus_addr_t		amr_sgls_paddr;
     74 
     75 	/* Command management. */
     76 	struct amr_ccb		*amr_ccbs;
     77 	SLIST_HEAD(, amr_ccb)	amr_ccb_freelist;
     78 	SIMPLEQ_HEAD(, amr_ccb)	amr_ccb_queue;
     79 	int			amr_maxqueuecnt;
     80 
     81 	/* Hardware-specific linkage. */
     82 	int	(*amr_get_work)(struct amr_softc *, struct amr_mailbox *);
     83 	int	(*amr_submit)(struct amr_softc *sc, struct amr_ccb *);
     84 
     85 	/* Logical drive information. */
     86 	int			amr_numdrives;
     87 	struct amr_logdrive	amr_drive[AMR_MAX_UNITS];
     88 };
     89 
     90 /*
     91  * Command control block.
     92  */
     93 struct amr_ccb {
     94 	union {
     95 		SIMPLEQ_ENTRY(amr_ccb) simpleq;
     96 		SLIST_ENTRY(amr_ccb) slist;
     97 	} ac_chain;
     98 
     99 	u_int		ac_flags;
    100 	u_int		ac_status;
    101 	u_int		ac_ident;
    102 
    103 	u_int		ac_xfer_size;
    104 	bus_dmamap_t	ac_xfer_map;
    105 
    106 	struct amr_mailbox ac_mbox;
    107 
    108 	void		(*ac_handler)(struct amr_ccb *);
    109 	void 		*ac_context;
    110 	struct device	*ac_dv;
    111 };
    112 #define	AC_XFER_IN	0x01	/* Map describes inbound xfer */
    113 #define	AC_XFER_OUT	0x02	/* Map describes outbound xfer */
    114 #define	AC_COMPLETE	0x04	/* Command completed */
    115 #define	AC_ACTIVE	0x08	/* Command active */
    116 #define	AC_NOSGL	0x10	/* No scatter/gather list */
    117 
    118 struct amr_attach_args {
    119 	int		amra_unit;
    120 };
    121 
    122 #define	amracf_unit	cf_loc[AMRCF_UNIT]
    123 
    124 int	amr_ccb_alloc(struct amr_softc *, struct amr_ccb **);
    125 void	amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *);
    126 void	amr_ccb_free(struct amr_softc *, struct amr_ccb *);
    127 int	amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int);
    128 int	amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int);
    129 void	amr_ccb_unmap(struct amr_softc *, struct amr_ccb *);
    130 
    131 #endif	/* !_PCI_AMRVAR_H_ */
    132