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c82ee6d3 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 | 2 | /* |
af36d7f0 JG |
3 | * libata.h - helper library for ATA |
4 | * | |
5 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. | |
6 | * Copyright 2003-2004 Jeff Garzik | |
7 | * | |
af36d7f0 | 8 | * libata documentation is available via 'make {ps|pdf}docs', |
9bb9a39c | 9 | * as Documentation/driver-api/libata.rst |
1da177e4 LT |
10 | */ |
11 | ||
12 | #ifndef __LIBATA_H__ | |
13 | #define __LIBATA_H__ | |
14 | ||
15 | #define DRV_NAME "libata" | |
633273a3 | 16 | #define DRV_VERSION "3.00" /* must be exactly four chars */ |
1da177e4 | 17 | |
1da177e4 | 18 | /* libata-core.c */ |
bff04647 TH |
19 | enum { |
20 | /* flags for ata_dev_read_id() */ | |
21 | ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */ | |
458337db TH |
22 | |
23 | /* selector for ata_down_xfermask_limit() */ | |
24 | ATA_DNXFER_PIO = 0, /* speed down PIO */ | |
25 | ATA_DNXFER_DMA = 1, /* speed down DMA */ | |
26 | ATA_DNXFER_40C = 2, /* apply 40c cable limit */ | |
27 | ATA_DNXFER_FORCE_PIO = 3, /* force PIO */ | |
28 | ATA_DNXFER_FORCE_PIO0 = 4, /* force PIO0 */ | |
458337db TH |
29 | |
30 | ATA_DNXFER_QUIET = (1 << 31), | |
bff04647 TH |
31 | }; |
32 | ||
85d6725b | 33 | extern atomic_t ata_print_id; |
baf4fdfa | 34 | extern int atapi_passthru16; |
c3c013a2 | 35 | extern int libata_fua; |
d7d0dad6 | 36 | extern int libata_noacpi; |
ae8d4ee7 | 37 | extern int libata_allow_tpm; |
8df82c13 | 38 | extern const struct device_type ata_port_type; |
b1c72916 | 39 | extern struct ata_link *ata_dev_phys_link(struct ata_device *dev); |
bf89b0bf | 40 | #ifdef CONFIG_ATA_FORCE |
33267325 | 41 | extern void ata_force_cbl(struct ata_port *ap); |
bf89b0bf BZ |
42 | #else |
43 | static inline void ata_force_cbl(struct ata_port *ap) { } | |
44 | #endif | |
a5987e0a TH |
45 | extern u64 ata_tf_to_lba(const struct ata_taskfile *tf); |
46 | extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf); | |
12cb5ce1 | 47 | extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag); |
bd056d7e TH |
48 | extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, |
49 | u64 block, u32 n_block, unsigned int tf_flags, | |
8e061784 | 50 | unsigned int tag, int class); |
cffd1ee9 HR |
51 | extern u64 ata_tf_read_block(const struct ata_taskfile *tf, |
52 | struct ata_device *dev); | |
3373efd8 | 53 | extern unsigned ata_exec_internal(struct ata_device *dev, |
1ad8e7f9 | 54 | struct ata_taskfile *tf, const u8 *cdb, |
2b789108 TH |
55 | int dma_dir, void *buf, unsigned int buflen, |
56 | unsigned long timeout); | |
2432697b TH |
57 | extern unsigned ata_exec_internal_sg(struct ata_device *dev, |
58 | struct ata_taskfile *tf, const u8 *cdb, | |
59 | int dma_dir, struct scatterlist *sg, | |
2b789108 | 60 | unsigned int n_elem, unsigned long timeout); |
aa2731ad TH |
61 | extern int ata_wait_ready(struct ata_link *link, unsigned long deadline, |
62 | int (*check_ready)(struct ata_link *link)); | |
a9beec95 | 63 | extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, |
bff04647 | 64 | unsigned int flags, u16 *id); |
fe30911b | 65 | extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags); |
422c9daa TH |
66 | extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class, |
67 | unsigned int readid_flags); | |
efdaedc4 | 68 | extern int ata_dev_configure(struct ata_device *dev); |
a07d499b | 69 | extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit); |
458337db | 70 | extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel); |
1152b261 TH |
71 | extern unsigned int ata_dev_set_feature(struct ata_device *dev, |
72 | u8 enable, u8 feature); | |
8a8bc223 | 73 | extern void ata_qc_free(struct ata_queued_cmd *qc); |
8e0e694a | 74 | extern void ata_qc_issue(struct ata_queued_cmd *qc); |
f686bcb8 | 75 | extern void __ata_qc_complete(struct ata_queued_cmd *qc); |
5895ef9a | 76 | extern int atapi_check_dma(struct ata_queued_cmd *qc); |
1da177e4 | 77 | extern void swap_buf_le16(u16 *buf, unsigned int buf_words); |
b1c72916 TH |
78 | extern bool ata_phys_link_online(struct ata_link *link); |
79 | extern bool ata_phys_link_offline(struct ata_link *link); | |
3ef3b43d | 80 | extern void ata_dev_init(struct ata_device *dev); |
fb7fd614 TH |
81 | extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp); |
82 | extern int sata_link_init_spd(struct ata_link *link); | |
b095518e JG |
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); | |
f3187195 | 85 | extern struct ata_port *ata_port_alloc(struct ata_host *host); |
d9027470 | 86 | extern const char *sata_spd_string(unsigned int spd); |
238c9cf9 | 87 | extern int ata_port_probe(struct ata_port *ap); |
9508a66f | 88 | extern void __ata_port_probe(struct ata_port *ap); |
f01f62c2 CH |
89 | extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log, |
90 | u8 page, void *buf, unsigned int sectors); | |
1da177e4 | 91 | |
6b66d958 MG |
92 | #define to_ata_port(d) container_of(d, struct ata_port, tdev) |
93 | ||
15964ff7 BZ |
94 | /* libata-sata.c */ |
95 | #ifdef CONFIG_SATA_HOST | |
96 | int ata_sas_allocate_tag(struct ata_port *ap); | |
97 | void ata_sas_free_tag(unsigned int tag, struct ata_port *ap); | |
98 | #else | |
99 | static inline int ata_sas_allocate_tag(struct ata_port *ap) | |
100 | { | |
101 | return -EOPNOTSUPP; | |
102 | } | |
103 | static inline void ata_sas_free_tag(unsigned int tag, struct ata_port *ap) { } | |
104 | #endif | |
105 | ||
11ef697b | 106 | /* libata-acpi.c */ |
e92351bb | 107 | #ifdef CONFIG_ATA_ACPI |
110f66d2 | 108 | extern unsigned int ata_acpi_gtf_filter; |
562f0c2d | 109 | extern void ata_acpi_dissociate(struct ata_host *host); |
64578a3d | 110 | extern int ata_acpi_on_suspend(struct ata_port *ap); |
6746544c | 111 | extern void ata_acpi_on_resume(struct ata_port *ap); |
562f0c2d TH |
112 | extern int ata_acpi_on_devcfg(struct ata_device *dev); |
113 | extern void ata_acpi_on_disable(struct ata_device *dev); | |
bd3adca5 | 114 | extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state); |
f1bc1e4c AL |
115 | extern void ata_acpi_bind_port(struct ata_port *ap); |
116 | extern void ata_acpi_bind_dev(struct ata_device *dev); | |
117 | extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev); | |
11ef697b | 118 | #else |
562f0c2d | 119 | static inline void ata_acpi_dissociate(struct ata_host *host) { } |
64578a3d | 120 | static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; } |
6746544c | 121 | static inline void ata_acpi_on_resume(struct ata_port *ap) { } |
562f0c2d TH |
122 | static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; } |
123 | static inline void ata_acpi_on_disable(struct ata_device *dev) { } | |
bd3adca5 SL |
124 | static inline void ata_acpi_set_state(struct ata_port *ap, |
125 | pm_message_t state) { } | |
f1bc1e4c AL |
126 | static inline void ata_acpi_bind_port(struct ata_port *ap) {} |
127 | static inline void ata_acpi_bind_dev(struct ata_device *dev) {} | |
11ef697b | 128 | #endif |
1da177e4 LT |
129 | |
130 | /* libata-scsi.c */ | |
ec811a94 BZ |
131 | extern struct ata_device *ata_scsi_find_dev(struct ata_port *ap, |
132 | const struct scsi_device *scsidev); | |
f3187195 TH |
133 | extern int ata_scsi_add_hosts(struct ata_host *host, |
134 | struct scsi_host_template *sht); | |
1ae46317 | 135 | extern void ata_scsi_scan_host(struct ata_port *ap, int sync); |
0ea035a3 | 136 | extern int ata_scsi_offline_dev(struct ata_device *dev); |
06dbde5f HR |
137 | extern void ata_scsi_set_sense(struct ata_device *dev, |
138 | struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq); | |
492bf621 HR |
139 | extern void ata_scsi_set_sense_information(struct ata_device *dev, |
140 | struct scsi_cmnd *cmd, | |
141 | const struct ata_taskfile *tf); | |
7d77b247 | 142 | extern void ata_scsi_media_change_notify(struct ata_device *dev); |
65f27f38 | 143 | extern void ata_scsi_hotplug(struct work_struct *work); |
7b70fc03 | 144 | extern void ata_schedule_scsi_eh(struct Scsi_Host *shost); |
65f27f38 | 145 | extern void ata_scsi_dev_rescan(struct work_struct *work); |
80289167 | 146 | extern int ata_bus_probe(struct ata_port *ap); |
d9027470 | 147 | extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel, |
9cb78c16 | 148 | unsigned int id, u64 lun); |
15964ff7 BZ |
149 | void ata_scsi_sdev_config(struct scsi_device *sdev); |
150 | int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev); | |
151 | void ata_scsi_dump_cdb(struct ata_port *ap, struct scsi_cmnd *cmd); | |
152 | int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev); | |
1da177e4 | 153 | |
ece1d636 | 154 | /* libata-eh.c */ |
87fbc5a0 TH |
155 | extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd); |
156 | extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd); | |
c0c362b6 TH |
157 | extern void ata_eh_acquire(struct ata_port *ap); |
158 | extern void ata_eh_release(struct ata_port *ap); | |
381544bb | 159 | extern void ata_scsi_error(struct Scsi_Host *host); |
b93ab338 | 160 | extern void ata_eh_fastdrain_timerfn(struct timer_list *t); |
f686bcb8 | 161 | extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); |
678afac6 | 162 | extern void ata_dev_disable(struct ata_device *dev); |
fb7fd614 TH |
163 | extern void ata_eh_detach_dev(struct ata_device *dev); |
164 | extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev, | |
165 | unsigned int action); | |
166 | extern void ata_eh_done(struct ata_link *link, struct ata_device *dev, | |
167 | unsigned int action); | |
168 | extern void ata_eh_autopsy(struct ata_port *ap); | |
6521148c | 169 | const char *ata_get_cmd_descript(u8 command); |
fb7fd614 TH |
170 | extern void ata_eh_report(struct ata_port *ap); |
171 | extern int ata_eh_reset(struct ata_link *link, int classify, | |
172 | ata_prereset_fn_t prereset, ata_reset_fn_t softreset, | |
173 | ata_reset_fn_t hardreset, ata_postreset_fn_t postreset); | |
6f1d1e3a | 174 | extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); |
fb7fd614 TH |
175 | extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, |
176 | ata_reset_fn_t softreset, ata_reset_fn_t hardreset, | |
177 | ata_postreset_fn_t postreset, | |
178 | struct ata_link **r_failed_disk); | |
179 | extern void ata_eh_finish(struct ata_port *ap); | |
d9027470 GG |
180 | extern int ata_ering_map(struct ata_ering *ering, |
181 | int (*map_fn)(struct ata_ering_entry *, void *), | |
182 | void *arg); | |
3dc67440 AL |
183 | extern unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key); |
184 | extern unsigned int atapi_eh_request_sense(struct ata_device *dev, | |
185 | u8 *sense_buf, u8 dfl_sense_key); | |
ece1d636 | 186 | |
48515f6c | 187 | /* libata-pmp.c */ |
88fcd562 | 188 | #ifdef CONFIG_SATA_PMP |
48515f6c TH |
189 | extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val); |
190 | extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val); | |
6c8ea89c TH |
191 | extern int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, |
192 | unsigned hints); | |
48515f6c | 193 | extern int sata_pmp_attach(struct ata_device *dev); |
88fcd562 TH |
194 | #else /* CONFIG_SATA_PMP */ |
195 | static inline int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val) | |
196 | { | |
197 | return -EINVAL; | |
198 | } | |
199 | ||
200 | static inline int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val) | |
201 | { | |
202 | return -EINVAL; | |
203 | } | |
204 | ||
6c8ea89c TH |
205 | static inline int sata_pmp_set_lpm(struct ata_link *link, |
206 | enum ata_lpm_policy policy, unsigned hints) | |
207 | { | |
208 | return -EINVAL; | |
209 | } | |
210 | ||
88fcd562 TH |
211 | static inline int sata_pmp_attach(struct ata_device *dev) |
212 | { | |
213 | return -EINVAL; | |
214 | } | |
215 | #endif /* CONFIG_SATA_PMP */ | |
48515f6c | 216 | |
90088bb4 | 217 | /* libata-sff.c */ |
127102ae | 218 | #ifdef CONFIG_ATA_SFF |
c429137a | 219 | extern void ata_sff_flush_pio_task(struct ata_port *ap); |
270390e1 TH |
220 | extern void ata_sff_port_init(struct ata_port *ap); |
221 | extern int ata_sff_init(void); | |
222 | extern void ata_sff_exit(void); | |
223 | #else /* CONFIG_ATA_SFF */ | |
c429137a TH |
224 | static inline void ata_sff_flush_pio_task(struct ata_port *ap) |
225 | { } | |
270390e1 TH |
226 | static inline void ata_sff_port_init(struct ata_port *ap) |
227 | { } | |
228 | static inline int ata_sff_init(void) | |
229 | { return 0; } | |
230 | static inline void ata_sff_exit(void) | |
231 | { } | |
127102ae | 232 | #endif /* CONFIG_ATA_SFF */ |
77a527ea | 233 | |
afe75951 AL |
234 | /* libata-zpodd.c */ |
235 | #ifdef CONFIG_SATA_ZPODD | |
236 | void zpodd_init(struct ata_device *dev); | |
237 | void zpodd_exit(struct ata_device *dev); | |
238 | static inline bool zpodd_dev_enabled(struct ata_device *dev) | |
239 | { | |
240 | return dev->zpodd != NULL; | |
241 | } | |
3dc67440 | 242 | void zpodd_on_suspend(struct ata_device *dev); |
21334205 AL |
243 | bool zpodd_zpready(struct ata_device *dev); |
244 | void zpodd_enable_run_wake(struct ata_device *dev); | |
245 | void zpodd_disable_run_wake(struct ata_device *dev); | |
246 | void zpodd_post_poweron(struct ata_device *dev); | |
afe75951 AL |
247 | #else /* CONFIG_SATA_ZPODD */ |
248 | static inline void zpodd_init(struct ata_device *dev) {} | |
249 | static inline void zpodd_exit(struct ata_device *dev) {} | |
250 | static inline bool zpodd_dev_enabled(struct ata_device *dev) { return false; } | |
3dc67440 | 251 | static inline void zpodd_on_suspend(struct ata_device *dev) {} |
21334205 AL |
252 | static inline bool zpodd_zpready(struct ata_device *dev) { return false; } |
253 | static inline void zpodd_enable_run_wake(struct ata_device *dev) {} | |
254 | static inline void zpodd_disable_run_wake(struct ata_device *dev) {} | |
255 | static inline void zpodd_post_poweron(struct ata_device *dev) {} | |
afe75951 AL |
256 | #endif /* CONFIG_SATA_ZPODD */ |
257 | ||
1da177e4 | 258 | #endif /* __LIBATA_H__ */ |