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-rw-r--r--drivers/ata/libata.h122
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diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
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1/*
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 *
26 */
27
28#ifndef __LIBATA_H__
29#define __LIBATA_H__
30
31#define DRV_NAME "libata"
32#define DRV_VERSION "2.00" /* must be exactly four chars */
33
34struct ata_scsi_args {
35 struct ata_device *dev;
36 u16 *id;
37 struct scsi_cmnd *cmd;
38 void (*done)(struct scsi_cmnd *);
39};
40
41/* libata-core.c */
42extern struct workqueue_struct *ata_aux_wq;
43extern int atapi_enabled;
44extern int atapi_dmadir;
45extern int libata_fua;
46extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
47extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
48extern void ata_dev_disable(struct ata_device *dev);
49extern void ata_port_flush_task(struct ata_port *ap);
50extern unsigned ata_exec_internal(struct ata_device *dev,
51 struct ata_taskfile *tf, const u8 *cdb,
52 int dma_dir, void *buf, unsigned int buflen);
53extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd);
54extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
55 int post_reset, u16 *id);
56extern int ata_dev_configure(struct ata_device *dev, int print_info);
57extern int sata_down_spd_limit(struct ata_port *ap);
58extern int sata_set_spd_needed(struct ata_port *ap);
59extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0);
60extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
61extern void ata_qc_free(struct ata_queued_cmd *qc);
62extern void ata_qc_issue(struct ata_queued_cmd *qc);
63extern void __ata_qc_complete(struct ata_queued_cmd *qc);
64extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
65extern void ata_dev_select(struct ata_port *ap, unsigned int device,
66 unsigned int wait, unsigned int can_sleep);
67extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
68extern int ata_flush_cache(struct ata_device *dev);
69extern void ata_dev_init(struct ata_device *dev);
70extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
71extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
72extern void ata_port_init(struct ata_port *ap, struct ata_host_set *host_set,
73 const struct ata_probe_ent *ent, unsigned int port_no);
74extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev,
75 const struct ata_port_info *port);
76
77
78/* libata-scsi.c */
79extern struct scsi_transport_template ata_scsi_transport_template;
80
81extern void ata_scsi_scan_host(struct ata_port *ap);
82extern int ata_scsi_offline_dev(struct ata_device *dev);
83extern void ata_scsi_hotplug(void *data);
84extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
85 unsigned int buflen);
86
87extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
88 unsigned int buflen);
89
90extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
91 unsigned int buflen);
92extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
93 unsigned int buflen);
94extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
95 unsigned int buflen);
96extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
97 unsigned int buflen);
98extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
99 unsigned int buflen);
100extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
101 unsigned int buflen);
102extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
103 unsigned int buflen);
104extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
105 void (*done)(struct scsi_cmnd *),
106 u8 asc, u8 ascq);
107extern void ata_scsi_set_sense(struct scsi_cmnd *cmd,
108 u8 sk, u8 asc, u8 ascq);
109extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
110 unsigned int (*actor) (struct ata_scsi_args *args,
111 u8 *rbuf, unsigned int buflen));
112extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
113extern void ata_scsi_dev_rescan(void *data);
114extern int ata_bus_probe(struct ata_port *ap);
115
116/* libata-eh.c */
117extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
118extern void ata_scsi_error(struct Scsi_Host *host);
119extern void ata_port_wait_eh(struct ata_port *ap);
120extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
121
122#endif /* __LIBATA_H__ */
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