[libata] improve device scan
[deliverable/linux.git] / drivers / scsi / libata.h
CommitLineData
1da177e4 1/*
af36d7f0
JG
2 * libata.h - helper library for ATA
3 *
4 * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
5 * Copyright 2003-2004 Jeff Garzik
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2, or (at your option)
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; see the file COPYING. If not, write to
20 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 *
23 * libata documentation is available via 'make {ps|pdf}docs',
24 * as Documentation/DocBook/libata.*
25 *
1da177e4
LT
26 */
27
28#ifndef __LIBATA_H__
29#define __LIBATA_H__
30
31#define DRV_NAME "libata"
6885433c 32#define DRV_VERSION "1.12" /* must be exactly four chars */
1da177e4
LT
33
34struct ata_scsi_args {
35 u16 *id;
36 struct scsi_cmnd *cmd;
37 void (*done)(struct scsi_cmnd *);
38};
39
40/* libata-core.c */
1623c81e 41extern int atapi_enabled;
1da177e4
LT
42extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
43 struct ata_device *dev);
44extern void ata_qc_free(struct ata_queued_cmd *qc);
45extern int ata_qc_issue(struct ata_queued_cmd *qc);
46extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
47extern void ata_dev_select(struct ata_port *ap, unsigned int device,
48 unsigned int wait, unsigned int can_sleep);
49extern void ata_tf_to_host_nolock(struct ata_port *ap, struct ata_taskfile *tf);
50extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
51
52
53/* libata-scsi.c */
644dd0cc 54extern void ata_scsi_scan_host(struct ata_port *ap);
1da177e4
LT
55extern void ata_to_sense_error(struct ata_queued_cmd *qc, u8 drv_stat);
56extern int ata_scsi_error(struct Scsi_Host *host);
57extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
58 unsigned int buflen);
59
60extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
61 unsigned int buflen);
62
63extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
64 unsigned int buflen);
65extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
66 unsigned int buflen);
67extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
68 unsigned int buflen);
69extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
70 unsigned int buflen);
71extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
72 unsigned int buflen);
73extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
74 unsigned int buflen);
75extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
76 unsigned int buflen);
77extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
78 void (*done)(struct scsi_cmnd *),
79 u8 asc, u8 ascq);
8a60a071 80extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
1da177e4
LT
81 unsigned int (*actor) (struct ata_scsi_args *args,
82 u8 *rbuf, unsigned int buflen));
83
84static inline void ata_bad_scsiop(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
85{
86 ata_scsi_badcmd(cmd, done, 0x20, 0x00);
87}
88
89static inline void ata_bad_cdb(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
90{
91 ata_scsi_badcmd(cmd, done, 0x24, 0x00);
92}
93
94#endif /* __LIBATA_H__ */
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