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cacvar.h revision 1.17.4.1
      1  1.17.4.1      yamt /*	$NetBSD: cacvar.h,v 1.17.4.1 2008/05/16 02:24:03 yamt Exp $	*/
      2       1.1        ad 
      3       1.1        ad /*-
      4       1.1        ad  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5       1.1        ad  * All rights reserved.
      6       1.1        ad  *
      7       1.1        ad  * This code is derived from software contributed to The NetBSD Foundation
      8       1.5        ad  * by Andrew Doran.
      9       1.1        ad  *
     10       1.1        ad  * Redistribution and use in source and binary forms, with or without
     11       1.1        ad  * modification, are permitted provided that the following conditions
     12       1.1        ad  * are met:
     13       1.1        ad  * 1. Redistributions of source code must retain the above copyright
     14       1.1        ad  *    notice, this list of conditions and the following disclaimer.
     15       1.1        ad  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.1        ad  *    notice, this list of conditions and the following disclaimer in the
     17       1.1        ad  *    documentation and/or other materials provided with the distribution.
     18       1.1        ad  *
     19       1.1        ad  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20       1.1        ad  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21       1.1        ad  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22       1.1        ad  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23       1.1        ad  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24       1.1        ad  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25       1.1        ad  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26       1.1        ad  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27       1.1        ad  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28       1.1        ad  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29       1.1        ad  * POSSIBILITY OF SUCH DAMAGE.
     30       1.1        ad  */
     31       1.1        ad 
     32       1.1        ad #ifndef _IC_CACVAR_H_
     33       1.6        ad #define	_IC_CACVAR_H_
     34       1.1        ad 
     35      1.14        ad #include <sys/mutex.h>
     36      1.14        ad #include <sys/condvar.h>
     37      1.14        ad 
     38      1.17    mhitch #include <dev/sysmon/sysmonvar.h>
     39      1.17    mhitch #include <sys/envsys.h>
     40      1.17    mhitch 
     41      1.13        ad #define	CAC_MAX_CCBS	256
     42       1.3        ad #define	CAC_MAX_XFER	(0xffff * 512)
     43       1.6        ad #define	CAC_SG_SIZE	32
     44       1.6        ad 
     45       1.6        ad #define	cac_inb(sc, port) \
     46       1.6        ad 	bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, port)
     47       1.6        ad #define	cac_inw(sc, port) \
     48       1.6        ad 	bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, port)
     49       1.6        ad #define	cac_inl(sc, port) \
     50       1.6        ad 	bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, port)
     51       1.6        ad #define	cac_outb(sc, port, val) \
     52       1.6        ad 	bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, port, val)
     53       1.6        ad #define	cac_outw(sc, port, val) \
     54       1.6        ad 	bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, port, val)
     55       1.6        ad #define	cac_outl(sc, port, val) \
     56       1.6        ad 	bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, port, val)
     57       1.6        ad 
     58       1.6        ad /*
     59       1.6        ad  * Stupid macros to deal with alignment/endianness issues.
     60       1.6        ad  */
     61       1.6        ad 
     62       1.6        ad #define	CAC_GET1(x)							\
     63       1.6        ad 	(((u_char *)&(x))[0])
     64       1.6        ad #define	CAC_GET2(x)							\
     65       1.6        ad 	(((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8))
     66       1.6        ad #define	CAC_GET4(x)							\
     67       1.6        ad 	((((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) |		\
     68      1.16    mhitch 	(((u_char *)&(x))[2] << 16 | (((u_char *)&(x))[3] << 24)))
     69       1.1        ad 
     70       1.1        ad struct cac_softc;
     71       1.1        ad struct cac_ccb;
     72       1.1        ad 
     73       1.1        ad struct cac_context {
     74       1.8        ad 	void		(*cc_handler)(struct device *, void *, int);
     75       1.1        ad 	struct device	*cc_dv;
     76       1.1        ad 	void 		*cc_context;
     77       1.1        ad };
     78       1.1        ad 
     79       1.1        ad struct cac_ccb {
     80       1.1        ad 	/* Data the controller will touch - 276 bytes */
     81       1.1        ad 	struct cac_hdr	ccb_hdr;
     82       1.1        ad 	struct cac_req	ccb_req;
     83       1.1        ad 	struct cac_sgb	ccb_seg[CAC_SG_SIZE];
     84       1.1        ad 
     85       1.1        ad 	/* Data the controller won't touch */
     86       1.1        ad 	int		ccb_flags;
     87       1.1        ad 	int		ccb_datasize;
     88       1.1        ad 	paddr_t		ccb_paddr;
     89       1.1        ad 	bus_dmamap_t	ccb_dmamap_xfer;
     90       1.1        ad 	SIMPLEQ_ENTRY(cac_ccb) ccb_chain;
     91       1.1        ad 	struct cac_context ccb_context;
     92       1.1        ad };
     93       1.1        ad 
     94       1.6        ad #define	CAC_CCB_DATA_IN		0x0001	/* Map describes inbound xfer */
     95       1.6        ad #define	CAC_CCB_DATA_OUT	0x0002	/* Map describes outbound xfer */
     96       1.6        ad #define	CAC_CCB_ACTIVE		0x0004	/* Command submitted to controller */
     97       1.1        ad 
     98       1.1        ad struct cac_linkage {
     99       1.6        ad 	struct	cac_ccb *(*cl_completed)(struct cac_softc *);
    100       1.6        ad 	int	(*cl_fifo_full)(struct cac_softc *);
    101       1.6        ad 	void	(*cl_intr_enable)(struct cac_softc *, int);
    102       1.6        ad 	int	(*cl_intr_pending)(struct cac_softc *);
    103       1.6        ad 	void	(*cl_submit)(struct cac_softc *, struct cac_ccb *);
    104       1.1        ad };
    105       1.1        ad 
    106       1.1        ad struct cac_softc {
    107       1.1        ad 	struct device		sc_dv;
    108      1.14        ad 	kmutex_t		sc_mutex;
    109       1.1        ad 	bus_space_tag_t		sc_iot;
    110       1.1        ad 	bus_space_handle_t	sc_ioh;
    111       1.1        ad 	bus_dma_tag_t		sc_dmat;
    112       1.1        ad 	bus_dmamap_t		sc_dmamap;
    113       1.8        ad 	int			sc_nunits;
    114       1.1        ad 	void			*sc_ih;
    115      1.15  christos 	void *			sc_ccbs;
    116       1.1        ad 	paddr_t			sc_ccbs_paddr;
    117      1.11     perry 	SIMPLEQ_HEAD(, cac_ccb)	sc_ccb_free;
    118       1.1        ad 	SIMPLEQ_HEAD(, cac_ccb)	sc_ccb_queue;
    119      1.14        ad 	kcondvar_t		sc_ccb_cv;
    120       1.9        ad 	struct cac_linkage	sc_cl;
    121      1.17    mhitch 
    122      1.17    mhitch 	/* scsi ioctl from sd device */
    123      1.17    mhitch 	int			(*sc_ioctl)(struct device *, u_long, void *);
    124      1.17    mhitch 
    125      1.17    mhitch 	struct sysmon_envsys    *sc_sme;
    126      1.17    mhitch 	envsys_data_t		*sc_sensor;
    127       1.1        ad };
    128       1.1        ad 
    129      1.17    mhitch /* XXX These have to become spinlocks in case of fine SMP */
    130      1.17    mhitch #define	CAC_LOCK(sc) splbio()
    131      1.17    mhitch #define	CAC_UNLOCK(sc, lock) splx(lock)
    132      1.17    mhitch typedef	int cac_lock_t;
    133      1.17    mhitch 
    134       1.1        ad struct cac_attach_args {
    135       1.1        ad 	int		caca_unit;
    136       1.1        ad };
    137       1.1        ad 
    138      1.11     perry int	cac_cmd(struct cac_softc *, int, void *, int, int, int, int,
    139       1.6        ad 		struct cac_context *);
    140       1.6        ad int	cac_init(struct cac_softc *, const char *, int);
    141       1.6        ad int	cac_intr(void *);
    142       1.6        ad 
    143       1.9        ad extern const struct	cac_linkage cac_l0;
    144       1.1        ad 
    145       1.1        ad #endif	/* !_IC_CACVAR_H_ */
    146