Commit | Line | Data |
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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" | |
1da177e4 LT |
32 | |
33 | struct ata_scsi_args { | |
9a3dccc4 | 34 | struct ata_device *dev; |
1da177e4 LT |
35 | u16 *id; |
36 | struct scsi_cmnd *cmd; | |
37 | void (*done)(struct scsi_cmnd *); | |
38 | }; | |
39 | ||
40 | /* libata-core.c */ | |
bff04647 TH |
41 | enum { |
42 | /* flags for ata_dev_read_id() */ | |
43 | ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */ | |
458337db TH |
44 | |
45 | /* selector for ata_down_xfermask_limit() */ | |
46 | ATA_DNXFER_PIO = 0, /* speed down PIO */ | |
47 | ATA_DNXFER_DMA = 1, /* speed down DMA */ | |
48 | ATA_DNXFER_40C = 2, /* apply 40c cable limit */ | |
49 | ATA_DNXFER_FORCE_PIO = 3, /* force PIO */ | |
50 | ATA_DNXFER_FORCE_PIO0 = 4, /* force PIO0 */ | |
458337db TH |
51 | |
52 | ATA_DNXFER_QUIET = (1 << 31), | |
bff04647 TH |
53 | }; |
54 | ||
f3187195 | 55 | extern unsigned int ata_print_id; |
453b07ac | 56 | extern struct workqueue_struct *ata_aux_wq; |
1623c81e | 57 | extern int atapi_enabled; |
95de719a | 58 | extern int atapi_dmadir; |
c3c013a2 | 59 | extern int libata_fua; |
d7d0dad6 | 60 | extern int libata_noacpi; |
3373efd8 | 61 | extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); |
bd056d7e TH |
62 | extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, |
63 | u64 block, u32 n_block, unsigned int tf_flags, | |
64 | unsigned int tag); | |
35b649fe | 65 | extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev); |
3373efd8 | 66 | extern void ata_dev_disable(struct ata_device *dev); |
86e45b6b | 67 | extern void ata_port_flush_task(struct ata_port *ap); |
3373efd8 | 68 | extern unsigned ata_exec_internal(struct ata_device *dev, |
1ad8e7f9 TH |
69 | struct ata_taskfile *tf, const u8 *cdb, |
70 | int dma_dir, void *buf, unsigned int buflen); | |
2432697b TH |
71 | extern unsigned ata_exec_internal_sg(struct ata_device *dev, |
72 | struct ata_taskfile *tf, const u8 *cdb, | |
73 | int dma_dir, struct scatterlist *sg, | |
74 | unsigned int n_elem); | |
77b08fb5 | 75 | extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); |
a9beec95 | 76 | extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, |
bff04647 | 77 | unsigned int flags, u16 *id); |
fe30911b TH |
78 | extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags); |
79 | extern int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags); | |
efdaedc4 | 80 | extern int ata_dev_configure(struct ata_device *dev); |
3c567b7d TH |
81 | extern int sata_down_spd_limit(struct ata_port *ap); |
82 | extern int sata_set_spd_needed(struct ata_port *ap); | |
458337db | 83 | extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel); |
1ad8e7f9 | 84 | extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev); |
70e6ad0c | 85 | extern void ata_sg_clean(struct ata_queued_cmd *qc); |
1da177e4 | 86 | extern void ata_qc_free(struct ata_queued_cmd *qc); |
8e0e694a | 87 | extern void ata_qc_issue(struct ata_queued_cmd *qc); |
f686bcb8 | 88 | extern void __ata_qc_complete(struct ata_queued_cmd *qc); |
1da177e4 LT |
89 | extern int ata_check_atapi_dma(struct ata_queued_cmd *qc); |
90 | extern void ata_dev_select(struct ata_port *ap, unsigned int device, | |
91 | unsigned int wait, unsigned int can_sleep); | |
1da177e4 | 92 | extern void swap_buf_le16(u16 *buf, unsigned int buf_words); |
77b08fb5 | 93 | extern int ata_flush_cache(struct ata_device *dev); |
3ef3b43d | 94 | extern void ata_dev_init(struct ata_device *dev); |
b095518e JG |
95 | extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg); |
96 | extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg); | |
f3187195 | 97 | extern struct ata_port *ata_port_alloc(struct ata_host *host); |
1da177e4 | 98 | |
11ef697b | 99 | /* libata-acpi.c */ |
e92351bb | 100 | #ifdef CONFIG_ATA_ACPI |
11ef697b | 101 | extern int ata_acpi_exec_tfs(struct ata_port *ap); |
3a32a8e9 | 102 | extern int ata_acpi_push_id(struct ata_device *dev); |
11ef697b KCA |
103 | #else |
104 | static inline int ata_acpi_exec_tfs(struct ata_port *ap) | |
105 | { | |
106 | return 0; | |
107 | } | |
3a32a8e9 | 108 | static inline int ata_acpi_push_id(struct ata_device *dev) |
7ea1fbc2 KCA |
109 | { |
110 | return 0; | |
111 | } | |
11ef697b | 112 | #endif |
1da177e4 LT |
113 | |
114 | /* libata-scsi.c */ | |
f3187195 TH |
115 | extern int ata_scsi_add_hosts(struct ata_host *host, |
116 | struct scsi_host_template *sht); | |
644dd0cc | 117 | extern void ata_scsi_scan_host(struct ata_port *ap); |
0ea035a3 | 118 | extern int ata_scsi_offline_dev(struct ata_device *dev); |
65f27f38 | 119 | extern void ata_scsi_hotplug(struct work_struct *work); |
1da177e4 LT |
120 | extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf, |
121 | unsigned int buflen); | |
122 | ||
123 | extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf, | |
124 | unsigned int buflen); | |
125 | ||
126 | extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, | |
127 | unsigned int buflen); | |
128 | extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, | |
129 | unsigned int buflen); | |
130 | extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf, | |
131 | unsigned int buflen); | |
132 | extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf, | |
133 | unsigned int buflen); | |
134 | extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, | |
135 | unsigned int buflen); | |
136 | extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf, | |
137 | unsigned int buflen); | |
138 | extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf, | |
139 | unsigned int buflen); | |
140 | extern void ata_scsi_badcmd(struct scsi_cmnd *cmd, | |
141 | void (*done)(struct scsi_cmnd *), | |
142 | u8 asc, u8 ascq); | |
845c5834 DG |
143 | extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, |
144 | u8 sk, u8 asc, u8 ascq); | |
8a60a071 | 145 | extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args, |
1da177e4 LT |
146 | unsigned int (*actor) (struct ata_scsi_args *args, |
147 | u8 *rbuf, unsigned int buflen)); | |
7b70fc03 | 148 | extern void ata_schedule_scsi_eh(struct Scsi_Host *shost); |
65f27f38 | 149 | extern void ata_scsi_dev_rescan(struct work_struct *work); |
80289167 | 150 | extern int ata_bus_probe(struct ata_port *ap); |
1da177e4 | 151 | |
ece1d636 TH |
152 | /* libata-eh.c */ |
153 | extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); | |
381544bb | 154 | extern void ata_scsi_error(struct Scsi_Host *host); |
c6cf9e99 | 155 | extern void ata_port_wait_eh(struct ata_port *ap); |
f686bcb8 | 156 | extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); |
ece1d636 | 157 | |
90088bb4 TH |
158 | /* libata-sff.c */ |
159 | extern u8 ata_irq_on(struct ata_port *ap); | |
160 | ||
77a527ea | 161 | |
1da177e4 | 162 | #endif /* __LIBATA_H__ */ |