NetBSD/sys/dev/ic/cacvar.h

119 lines
3.9 KiB
C

/* $NetBSD: cacvar.h,v 1.2 2000/03/16 15:07:22 ad Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andy Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _IC_CACVAR_H_
#define _IC_CACVAR_H_
#include "locators.h"
#define CAC_MAX_CCBS 64
#define CAC_MAX_XFER 1048576
#define CAC_SG_SIZE 32
struct cac_softc;
struct cac_ccb;
struct cac_context {
void (*cc_handler) __P((struct cac_ccb *, int));
struct device *cc_dv;
void *cc_context;
};
struct cac_ccb {
/* Data the controller will touch - 276 bytes */
struct cac_hdr ccb_hdr;
struct cac_req ccb_req;
struct cac_sgb ccb_seg[CAC_SG_SIZE];
/* Data the controller won't touch */
int ccb_flags;
int ccb_datasize;
paddr_t ccb_paddr;
bus_dmamap_t ccb_dmamap_xfer;
SIMPLEQ_ENTRY(cac_ccb) ccb_chain;
struct cac_context ccb_context;
};
#define CAC_CCB_DATA_IN 0x0001
#define CAC_CCB_DATA_OUT 0x0002
struct cac_linkage {
void (*cl_submit) __P((struct cac_softc *, paddr_t));
paddr_t (*cl_completed) __P((struct cac_softc *));
int (*cl_intr_pending) __P((struct cac_softc *));
void (*cl_intr_enable) __P((struct cac_softc *, int));
int (*cl_fifo_full) __P((struct cac_softc *));
};
struct cac_softc {
struct device sc_dv;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_dmamap;
void *sc_ih;
struct cac_linkage *sc_cl;
char *sc_typestr;
caddr_t sc_ccbs;
paddr_t sc_ccbs_paddr;
SIMPLEQ_HEAD(, cac_ccb) sc_ccb_free;
SIMPLEQ_HEAD(, cac_ccb) sc_ccb_queue;
SIMPLEQ_ENTRY(cac_softc) sc_chain;
};
struct cac_attach_args {
int caca_unit;
};
#define CACACF_UNIT 0
#define cacacf_unit cf_loc[CACACF_UNIT]
#define CACACF_UNIT_UNKNOWN -1
int cac_cmd __P((struct cac_softc *, int, void *, int, int, int, int,
struct cac_context *));
void cac_minphys __P((struct buf *));
int cac_intr __P((void *));
int cac_init __P((struct cac_softc *, const char *));
void cac_ccb_free __P((struct cac_softc *, struct cac_ccb *));
int cac_ccb_start __P((struct cac_softc *, struct cac_ccb *));
struct cac_ccb *cac_ccb_alloc __P((struct cac_softc *, int));
#endif /* !_IC_CACVAR_H_ */