[PATCH] libata-eh-fw: update ata_qc_from_tag() to enforce normal/EH qc ownership
[linux-block.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"
af64371a 32#define DRV_VERSION "1.30" /* must be exactly four chars */
1da177e4
LT
33
34struct ata_scsi_args {
9a3dccc4 35 struct ata_device *dev;
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LT
36 u16 *id;
37 struct scsi_cmnd *cmd;
38 void (*done)(struct scsi_cmnd *);
39};
40
41/* libata-core.c */
1623c81e 42extern int atapi_enabled;
95de719a 43extern int atapi_dmadir;
c3c013a2 44extern int libata_fua;
3373efd8 45extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
9a3dccc4 46extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
3373efd8 47extern void ata_dev_disable(struct ata_device *dev);
86e45b6b 48extern void ata_port_flush_task(struct ata_port *ap);
3373efd8 49extern unsigned ata_exec_internal(struct ata_device *dev,
1ad8e7f9
TH
50 struct ata_taskfile *tf, const u8 *cdb,
51 int dma_dir, void *buf, unsigned int buflen);
3c567b7d
TH
52extern int sata_down_spd_limit(struct ata_port *ap);
53extern int sata_set_spd_needed(struct ata_port *ap);
3373efd8 54extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0);
1ad8e7f9 55extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
2bf2cb26 56extern int ata_do_reset(struct ata_port *ap, ata_reset_fn_t reset,
96bd39ec 57 unsigned int *classes);
1da177e4 58extern void ata_qc_free(struct ata_queued_cmd *qc);
8e0e694a 59extern void ata_qc_issue(struct ata_queued_cmd *qc);
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LT
60extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
61extern void ata_dev_select(struct ata_port *ap, unsigned int device,
62 unsigned int wait, unsigned int can_sleep);
1da177e4 63extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
b095518e
JG
64extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
65extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
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66
67
68/* libata-scsi.c */
30afc84c
TH
69extern struct scsi_transport_template ata_scsi_transport_template;
70
644dd0cc 71extern void ata_scsi_scan_host(struct ata_port *ap);
1da177e4
LT
72extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
73 unsigned int buflen);
74
75extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
76 unsigned int buflen);
77
78extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
79 unsigned int buflen);
80extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
81 unsigned int buflen);
82extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
83 unsigned int buflen);
84extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
85 unsigned int buflen);
86extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
87 unsigned int buflen);
88extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
89 unsigned int buflen);
90extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
91 unsigned int buflen);
92extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
93 void (*done)(struct scsi_cmnd *),
94 u8 asc, u8 ascq);
845c5834
DG
95extern void ata_scsi_set_sense(struct scsi_cmnd *cmd,
96 u8 sk, u8 asc, u8 ascq);
8a60a071 97extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
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98 unsigned int (*actor) (struct ata_scsi_args *args,
99 u8 *rbuf, unsigned int buflen));
100
ece1d636
TH
101/* libata-eh.c */
102extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
381544bb 103extern void ata_scsi_error(struct Scsi_Host *host);
ece1d636 104
1da177e4 105#endif /* __LIBATA_H__ */