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/* $OpenBSD: atascsi.h,v 1.8 2007/03/13 11:22:36 dlg Exp $ */
/*
* Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
struct atascsi;
struct ata_xfer;
struct atascsi_methods {
int (*probe)(void *, int);
int (*ata_cmd)(void *, struct ata_xfer *);
};
struct atascsi_attach_args {
void *aaa_cookie;
struct atascsi_methods *aaa_methods;
void (*aaa_minphys)(struct buf *);
int aaa_nports;
int aaa_ncmds;
};
struct ata_port {
struct atascsi *ap_as;
int ap_port;
int ap_type;
#define ATA_PORT_T_NONE 0
#define ATA_PORT_T_DISK 1
#define ATA_PORT_T_ATAPI 2
};
struct ata_cmd {
u_int8_t command;
u_int8_t head;
u_int16_t cyl;
u_int8_t sector;
u_int8_t count;
u_int8_t features;
u_int8_t st_bmask;
u_int8_t st_pmask;
u_int8_t error;
};
struct ata_xfer {
struct ata_cmd cmd;
u_int8_t *data;
size_t datalen;
size_t resid;
void (*complete)(struct ata_xfer *);
struct timeout stimeout;
u_int timeout;
struct ata_port *port;
int flags;
#define ATA_F_READ (1<<0)
#define ATA_F_WRITE (1<<1)
#define ATA_F_NOWAIT (1<<2)
#define ATA_F_POLL (1<<3)
volatile int state;
#define ATA_S_SETUP 0
#define ATA_S_PENDING 1
#define ATA_S_COMPLETE 2
#define ATA_S_ERROR 3
void *atascsi_private;
};
#define ATA_QUEUED 0
#define ATA_COMPLETE 1
#define ATA_ERROR 2
struct atascsi *atascsi_attach(struct device *, struct atascsi_attach_args *);
int atascsi_detach(struct atascsi *);
int atascsi_probe_dev(struct atascsi *, int);
int atascsi_detach_dev(struct atascsi *, int);
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