kernel-ark/drivers/scsi/libata.h
Jeff Garzik 1623c81eec [libata] allow ATAPI to be enabled with new atapi_enabled module option
ATAPI is getting close to being ready.  To increase exposure, we enable
the code in the upstream kernel, but default it to off (present
behavior).  Users must pass atapi_enabled=1 as a module option (if
module) or on the kernel command line (if built in) to turn on
discovery of their ATAPI devices.
2005-08-30 03:37:42 -04:00

94 lines
3.5 KiB
C

/*
* libata.h - helper library for ATA
*
* Copyright 2003-2004 Red Hat, Inc. All rights reserved.
* Copyright 2003-2004 Jeff Garzik
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* libata documentation is available via 'make {ps|pdf}docs',
* as Documentation/DocBook/libata.*
*
*/
#ifndef __LIBATA_H__
#define __LIBATA_H__
#define DRV_NAME "libata"
#define DRV_VERSION "1.12" /* must be exactly four chars */
struct ata_scsi_args {
u16 *id;
struct scsi_cmnd *cmd;
void (*done)(struct scsi_cmnd *);
};
/* libata-core.c */
extern int atapi_enabled;
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
struct ata_device *dev);
extern void ata_qc_free(struct ata_queued_cmd *qc);
extern int ata_qc_issue(struct ata_queued_cmd *qc);
extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
extern void ata_dev_select(struct ata_port *ap, unsigned int device,
unsigned int wait, unsigned int can_sleep);
extern void ata_tf_to_host_nolock(struct ata_port *ap, struct ata_taskfile *tf);
extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
/* libata-scsi.c */
extern void ata_to_sense_error(struct ata_queued_cmd *qc, u8 drv_stat);
extern int ata_scsi_error(struct Scsi_Host *host);
extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *),
u8 asc, u8 ascq);
extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
unsigned int (*actor) (struct ata_scsi_args *args,
u8 *rbuf, unsigned int buflen));
static inline void ata_bad_scsiop(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
ata_scsi_badcmd(cmd, done, 0x20, 0x00);
}
static inline void ata_bad_cdb(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
ata_scsi_badcmd(cmd, done, 0x24, 0x00);
}
#endif /* __LIBATA_H__ */