2 * libata.h - helper library for ATA
4 * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
5 * Copyright 2003-2004 Jeff Garzik
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)
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.
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.
23 * libata documentation is available via 'make {ps|pdf}docs',
24 * as Documentation/DocBook/libata.*
31 #define DRV_NAME "libata"
33 struct ata_scsi_args
{
34 struct ata_device
*dev
;
36 struct scsi_cmnd
*cmd
;
37 void (*done
)(struct scsi_cmnd
*);
42 /* flags for ata_dev_read_id() */
43 ATA_READID_POSTRESET
= (1 << 0), /* reading ID after reset */
46 extern struct workqueue_struct
*ata_aux_wq
;
47 extern int atapi_enabled
;
48 extern int atapi_dmadir
;
49 extern int libata_fua
;
50 extern struct ata_queued_cmd
*ata_qc_new_init(struct ata_device
*dev
);
51 extern int ata_build_rw_tf(struct ata_taskfile
*tf
, struct ata_device
*dev
,
52 u64 block
, u32 n_block
, unsigned int tf_flags
,
54 extern u64
ata_tf_read_block(struct ata_taskfile
*tf
, struct ata_device
*dev
);
55 extern void ata_dev_disable(struct ata_device
*dev
);
56 extern void ata_port_flush_task(struct ata_port
*ap
);
57 extern unsigned ata_exec_internal(struct ata_device
*dev
,
58 struct ata_taskfile
*tf
, const u8
*cdb
,
59 int dma_dir
, void *buf
, unsigned int buflen
);
60 extern unsigned ata_exec_internal_sg(struct ata_device
*dev
,
61 struct ata_taskfile
*tf
, const u8
*cdb
,
62 int dma_dir
, struct scatterlist
*sg
,
64 extern unsigned int ata_do_simple_cmd(struct ata_device
*dev
, u8 cmd
);
65 extern int ata_dev_read_id(struct ata_device
*dev
, unsigned int *p_class
,
66 unsigned int flags
, u16
*id
);
67 extern int ata_dev_revalidate(struct ata_device
*dev
, unsigned int flags
);
68 extern int ata_dev_configure(struct ata_device
*dev
);
69 extern int sata_down_spd_limit(struct ata_port
*ap
);
70 extern int sata_set_spd_needed(struct ata_port
*ap
);
71 extern int ata_down_xfermask_limit(struct ata_device
*dev
, int force_pio0
);
72 extern int ata_set_mode(struct ata_port
*ap
, struct ata_device
**r_failed_dev
);
73 extern void ata_sg_clean(struct ata_queued_cmd
*qc
);
74 extern void ata_qc_free(struct ata_queued_cmd
*qc
);
75 extern void ata_qc_issue(struct ata_queued_cmd
*qc
);
76 extern void __ata_qc_complete(struct ata_queued_cmd
*qc
);
77 extern int ata_check_atapi_dma(struct ata_queued_cmd
*qc
);
78 extern void ata_dev_select(struct ata_port
*ap
, unsigned int device
,
79 unsigned int wait
, unsigned int can_sleep
);
80 extern void swap_buf_le16(u16
*buf
, unsigned int buf_words
);
81 extern int ata_flush_cache(struct ata_device
*dev
);
82 extern void ata_dev_init(struct ata_device
*dev
);
83 extern int ata_task_ioctl(struct scsi_device
*scsidev
, void __user
*arg
);
84 extern int ata_cmd_ioctl(struct scsi_device
*scsidev
, void __user
*arg
);
85 extern void ata_port_init(struct ata_port
*ap
, struct ata_host
*host
,
86 const struct ata_probe_ent
*ent
, unsigned int port_no
);
87 extern struct ata_probe_ent
*ata_probe_ent_alloc(struct device
*dev
,
88 const struct ata_port_info
*port
);
92 extern struct scsi_transport_template ata_scsi_transport_template
;
94 extern void ata_scsi_scan_host(struct ata_port
*ap
);
95 extern int ata_scsi_offline_dev(struct ata_device
*dev
);
96 extern void ata_scsi_hotplug(struct work_struct
*work
);
97 extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args
*args
, u8
*rbuf
,
100 extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args
*args
, u8
*rbuf
,
101 unsigned int buflen
);
103 extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args
*args
, u8
*rbuf
,
104 unsigned int buflen
);
105 extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args
*args
, u8
*rbuf
,
106 unsigned int buflen
);
107 extern unsigned int ata_scsiop_noop(struct ata_scsi_args
*args
, u8
*rbuf
,
108 unsigned int buflen
);
109 extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args
*args
, u8
*rbuf
,
110 unsigned int buflen
);
111 extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args
*args
, u8
*rbuf
,
112 unsigned int buflen
);
113 extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args
*args
, u8
*rbuf
,
114 unsigned int buflen
);
115 extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args
*args
, u8
*rbuf
,
116 unsigned int buflen
);
117 extern void ata_scsi_badcmd(struct scsi_cmnd
*cmd
,
118 void (*done
)(struct scsi_cmnd
*),
120 extern void ata_scsi_set_sense(struct scsi_cmnd
*cmd
,
121 u8 sk
, u8 asc
, u8 ascq
);
122 extern void ata_scsi_rbuf_fill(struct ata_scsi_args
*args
,
123 unsigned int (*actor
) (struct ata_scsi_args
*args
,
124 u8
*rbuf
, unsigned int buflen
));
125 extern void ata_schedule_scsi_eh(struct Scsi_Host
*shost
);
126 extern void ata_scsi_dev_rescan(struct work_struct
*work
);
127 extern int ata_bus_probe(struct ata_port
*ap
);
130 extern enum scsi_eh_timer_return
ata_scsi_timed_out(struct scsi_cmnd
*cmd
);
131 extern void ata_scsi_error(struct Scsi_Host
*host
);
132 extern void ata_port_wait_eh(struct ata_port
*ap
);
133 extern void ata_qc_schedule_eh(struct ata_queued_cmd
*qc
);
136 extern u8
ata_irq_on(struct ata_port
*ap
);
139 extern struct ata_port_info sis_info133
;
141 #endif /* __LIBATA_H__ */