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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
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 *
8 * libata documentation is available via 'make {ps|pdf}docs',
9 * as Documentation/driver-api/libata.rst
10 */
11
12#ifndef __LIBATA_H__
13#define __LIBATA_H__
14
15#define DRV_NAME "libata"
16#define DRV_VERSION "3.00" /* must be exactly four chars */
17
18/* libata-core.c */
19enum {
20 /* flags for ata_dev_read_id() */
21 ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */
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 */
29
30 ATA_DNXFER_QUIET = (1 << 31),
31};
32
33extern atomic_t ata_print_id;
34extern int atapi_passthru16;
35extern int libata_fua;
36extern int libata_noacpi;
37extern int libata_allow_tpm;
38extern const struct device_type ata_port_type;
39extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
40#ifdef CONFIG_ATA_FORCE
41extern void ata_force_cbl(struct ata_port *ap);
42#else
43static inline void ata_force_cbl(struct ata_port *ap) { }
44#endif
45extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
46extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf);
47extern int ata_build_rw_tf(struct ata_queued_cmd *qc, u64 block, u32 n_block,
48 unsigned int tf_flags, int class);
49extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
50 struct ata_device *dev);
51extern unsigned ata_exec_internal(struct ata_device *dev,
52 struct ata_taskfile *tf, const u8 *cdb,
53 int dma_dir, void *buf, unsigned int buflen,
54 unsigned int timeout);
55extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
56 int (*check_ready)(struct ata_link *link));
57extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
58 unsigned int flags, u16 *id);
59extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags);
60extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
61 unsigned int readid_flags);
62extern int ata_dev_configure(struct ata_device *dev);
63extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit);
64extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
65extern unsigned int ata_dev_set_feature(struct ata_device *dev,
66 u8 subcmd, u8 action);
67extern void ata_qc_free(struct ata_queued_cmd *qc);
68extern void ata_qc_issue(struct ata_queued_cmd *qc);
69extern void __ata_qc_complete(struct ata_queued_cmd *qc);
70extern int atapi_check_dma(struct ata_queued_cmd *qc);
71extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
72extern bool ata_phys_link_online(struct ata_link *link);
73extern bool ata_phys_link_offline(struct ata_link *link);
74extern void ata_dev_init(struct ata_device *dev);
75extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);
76extern int sata_link_init_spd(struct ata_link *link);
77extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
78extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
79extern struct ata_port *ata_port_alloc(struct ata_host *host);
80extern const char *sata_spd_string(unsigned int spd);
81extern int ata_port_probe(struct ata_port *ap);
82extern void __ata_port_probe(struct ata_port *ap);
83extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
84 u8 page, void *buf, unsigned int sectors);
85
86#define to_ata_port(d) container_of(d, struct ata_port, tdev)
87
88/* libata-acpi.c */
89#ifdef CONFIG_ATA_ACPI
90extern unsigned int ata_acpi_gtf_filter;
91extern void ata_acpi_dissociate(struct ata_host *host);
92extern void ata_acpi_on_resume(struct ata_port *ap);
93extern int ata_acpi_on_devcfg(struct ata_device *dev);
94extern void ata_acpi_on_disable(struct ata_device *dev);
95extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
96extern void ata_acpi_bind_port(struct ata_port *ap);
97extern void ata_acpi_bind_dev(struct ata_device *dev);
98extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev);
99#else
100static inline void ata_acpi_dissociate(struct ata_host *host) { }
101static inline void ata_acpi_on_resume(struct ata_port *ap) { }
102static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
103static inline void ata_acpi_on_disable(struct ata_device *dev) { }
104static inline void ata_acpi_set_state(struct ata_port *ap,
105 pm_message_t state) { }
106static inline void ata_acpi_bind_port(struct ata_port *ap) {}
107static inline void ata_acpi_bind_dev(struct ata_device *dev) {}
108#endif
109
110/* libata-scsi.c */
111extern struct ata_device *ata_scsi_find_dev(struct ata_port *ap,
112 const struct scsi_device *scsidev);
113extern int ata_scsi_add_hosts(struct ata_host *host,
114 struct scsi_host_template *sht);
115extern void ata_scsi_scan_host(struct ata_port *ap, int sync);
116extern int ata_scsi_offline_dev(struct ata_device *dev);
117extern bool ata_scsi_sense_is_valid(u8 sk, u8 asc, u8 ascq);
118extern void ata_scsi_set_sense(struct ata_device *dev,
119 struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq);
120extern void ata_scsi_set_sense_information(struct ata_device *dev,
121 struct scsi_cmnd *cmd,
122 const struct ata_taskfile *tf);
123extern void ata_scsi_media_change_notify(struct ata_device *dev);
124extern void ata_scsi_hotplug(struct work_struct *work);
125extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
126extern void ata_scsi_dev_rescan(struct work_struct *work);
127extern int ata_bus_probe(struct ata_port *ap);
128extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
129 unsigned int id, u64 lun);
130void ata_scsi_sdev_config(struct scsi_device *sdev);
131int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev);
132int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev);
133
134/* libata-eh.c */
135extern unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
136extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
137extern void ata_eh_acquire(struct ata_port *ap);
138extern void ata_eh_release(struct ata_port *ap);
139extern void ata_scsi_error(struct Scsi_Host *host);
140extern void ata_eh_fastdrain_timerfn(struct timer_list *t);
141extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
142extern void ata_dev_disable(struct ata_device *dev);
143extern void ata_eh_detach_dev(struct ata_device *dev);
144extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
145 unsigned int action);
146extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
147 unsigned int action);
148extern void ata_eh_autopsy(struct ata_port *ap);
149const char *ata_get_cmd_name(u8 command);
150extern void ata_eh_report(struct ata_port *ap);
151extern int ata_eh_reset(struct ata_link *link, int classify,
152 ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
153 ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
154extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
155extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
156 ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
157 ata_postreset_fn_t postreset,
158 struct ata_link **r_failed_disk);
159extern void ata_eh_finish(struct ata_port *ap);
160extern int ata_ering_map(struct ata_ering *ering,
161 int (*map_fn)(struct ata_ering_entry *, void *),
162 void *arg);
163extern unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key);
164extern unsigned int atapi_eh_request_sense(struct ata_device *dev,
165 u8 *sense_buf, u8 dfl_sense_key);
166
167/* libata-pmp.c */
168#ifdef CONFIG_SATA_PMP
169extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
170extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
171extern int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
172 unsigned hints);
173extern int sata_pmp_attach(struct ata_device *dev);
174#else /* CONFIG_SATA_PMP */
175static inline int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val)
176{
177 return -EINVAL;
178}
179
180static inline int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val)
181{
182 return -EINVAL;
183}
184
185static inline int sata_pmp_set_lpm(struct ata_link *link,
186 enum ata_lpm_policy policy, unsigned hints)
187{
188 return -EINVAL;
189}
190
191static inline int sata_pmp_attach(struct ata_device *dev)
192{
193 return -EINVAL;
194}
195#endif /* CONFIG_SATA_PMP */
196
197/* libata-sff.c */
198#ifdef CONFIG_ATA_SFF
199extern void ata_sff_flush_pio_task(struct ata_port *ap);
200extern void ata_sff_port_init(struct ata_port *ap);
201extern int ata_sff_init(void);
202extern void ata_sff_exit(void);
203#else /* CONFIG_ATA_SFF */
204static inline void ata_sff_flush_pio_task(struct ata_port *ap)
205{ }
206static inline void ata_sff_port_init(struct ata_port *ap)
207{ }
208static inline int ata_sff_init(void)
209{ return 0; }
210static inline void ata_sff_exit(void)
211{ }
212#endif /* CONFIG_ATA_SFF */
213
214/* libata-zpodd.c */
215#ifdef CONFIG_SATA_ZPODD
216void zpodd_init(struct ata_device *dev);
217void zpodd_exit(struct ata_device *dev);
218static inline bool zpodd_dev_enabled(struct ata_device *dev)
219{
220 return dev->zpodd != NULL;
221}
222void zpodd_on_suspend(struct ata_device *dev);
223bool zpodd_zpready(struct ata_device *dev);
224void zpodd_enable_run_wake(struct ata_device *dev);
225void zpodd_disable_run_wake(struct ata_device *dev);
226void zpodd_post_poweron(struct ata_device *dev);
227#else /* CONFIG_SATA_ZPODD */
228static inline void zpodd_init(struct ata_device *dev) {}
229static inline void zpodd_exit(struct ata_device *dev) {}
230static inline bool zpodd_dev_enabled(struct ata_device *dev) { return false; }
231static inline void zpodd_on_suspend(struct ata_device *dev) {}
232static inline bool zpodd_zpready(struct ata_device *dev) { return false; }
233static inline void zpodd_enable_run_wake(struct ata_device *dev) {}
234static inline void zpodd_disable_run_wake(struct ata_device *dev) {}
235static inline void zpodd_post_poweron(struct ata_device *dev) {}
236#endif /* CONFIG_SATA_ZPODD */
237
238#endif /* __LIBATA_H__ */
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
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 *
8 * libata documentation is available via 'make {ps|pdf}docs',
9 * as Documentation/driver-api/libata.rst
10 */
11
12#ifndef __LIBATA_H__
13#define __LIBATA_H__
14
15#define DRV_NAME "libata"
16#define DRV_VERSION "3.00" /* must be exactly four chars */
17
18/* libata-core.c */
19enum {
20 /* flags for ata_dev_read_id() */
21 ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */
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 */
29
30 ATA_DNXFER_QUIET = (1 << 31),
31};
32
33extern atomic_t ata_print_id;
34extern int atapi_passthru16;
35extern int libata_fua;
36extern int libata_noacpi;
37extern int libata_allow_tpm;
38extern const struct device_type ata_port_type;
39extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
40#ifdef CONFIG_ATA_FORCE
41extern void ata_force_cbl(struct ata_port *ap);
42#else
43static inline void ata_force_cbl(struct ata_port *ap) { }
44#endif
45extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
46extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf);
47extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag);
48extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
49 u64 block, u32 n_block, unsigned int tf_flags,
50 unsigned int tag, int class);
51extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
52 struct ata_device *dev);
53extern unsigned ata_exec_internal(struct ata_device *dev,
54 struct ata_taskfile *tf, const u8 *cdb,
55 int dma_dir, void *buf, unsigned int buflen,
56 unsigned long timeout);
57extern unsigned ata_exec_internal_sg(struct ata_device *dev,
58 struct ata_taskfile *tf, const u8 *cdb,
59 int dma_dir, struct scatterlist *sg,
60 unsigned int n_elem, unsigned long timeout);
61extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
62 int (*check_ready)(struct ata_link *link));
63extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
64 unsigned int flags, u16 *id);
65extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags);
66extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
67 unsigned int readid_flags);
68extern int ata_dev_configure(struct ata_device *dev);
69extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit);
70extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
71extern unsigned int ata_dev_set_feature(struct ata_device *dev,
72 u8 enable, u8 feature);
73extern void ata_qc_free(struct ata_queued_cmd *qc);
74extern void ata_qc_issue(struct ata_queued_cmd *qc);
75extern void __ata_qc_complete(struct ata_queued_cmd *qc);
76extern int atapi_check_dma(struct ata_queued_cmd *qc);
77extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
78extern bool ata_phys_link_online(struct ata_link *link);
79extern bool ata_phys_link_offline(struct ata_link *link);
80extern void ata_dev_init(struct ata_device *dev);
81extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);
82extern int sata_link_init_spd(struct ata_link *link);
83extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
84extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
85extern struct ata_port *ata_port_alloc(struct ata_host *host);
86extern const char *sata_spd_string(unsigned int spd);
87extern int ata_port_probe(struct ata_port *ap);
88extern void __ata_port_probe(struct ata_port *ap);
89extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
90 u8 page, void *buf, unsigned int sectors);
91
92#define to_ata_port(d) container_of(d, struct ata_port, tdev)
93
94/* libata-sata.c */
95#ifdef CONFIG_SATA_HOST
96int ata_sas_allocate_tag(struct ata_port *ap);
97void ata_sas_free_tag(unsigned int tag, struct ata_port *ap);
98#else
99static inline int ata_sas_allocate_tag(struct ata_port *ap)
100{
101 return -EOPNOTSUPP;
102}
103static inline void ata_sas_free_tag(unsigned int tag, struct ata_port *ap) { }
104#endif
105
106/* libata-acpi.c */
107#ifdef CONFIG_ATA_ACPI
108extern unsigned int ata_acpi_gtf_filter;
109extern void ata_acpi_dissociate(struct ata_host *host);
110extern int ata_acpi_on_suspend(struct ata_port *ap);
111extern void ata_acpi_on_resume(struct ata_port *ap);
112extern int ata_acpi_on_devcfg(struct ata_device *dev);
113extern void ata_acpi_on_disable(struct ata_device *dev);
114extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
115extern void ata_acpi_bind_port(struct ata_port *ap);
116extern void ata_acpi_bind_dev(struct ata_device *dev);
117extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev);
118#else
119static inline void ata_acpi_dissociate(struct ata_host *host) { }
120static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
121static inline void ata_acpi_on_resume(struct ata_port *ap) { }
122static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
123static inline void ata_acpi_on_disable(struct ata_device *dev) { }
124static inline void ata_acpi_set_state(struct ata_port *ap,
125 pm_message_t state) { }
126static inline void ata_acpi_bind_port(struct ata_port *ap) {}
127static inline void ata_acpi_bind_dev(struct ata_device *dev) {}
128#endif
129
130/* libata-scsi.c */
131extern struct ata_device *ata_scsi_find_dev(struct ata_port *ap,
132 const struct scsi_device *scsidev);
133extern int ata_scsi_add_hosts(struct ata_host *host,
134 struct scsi_host_template *sht);
135extern void ata_scsi_scan_host(struct ata_port *ap, int sync);
136extern int ata_scsi_offline_dev(struct ata_device *dev);
137extern void ata_scsi_set_sense(struct ata_device *dev,
138 struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq);
139extern void ata_scsi_set_sense_information(struct ata_device *dev,
140 struct scsi_cmnd *cmd,
141 const struct ata_taskfile *tf);
142extern void ata_scsi_media_change_notify(struct ata_device *dev);
143extern void ata_scsi_hotplug(struct work_struct *work);
144extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
145extern void ata_scsi_dev_rescan(struct work_struct *work);
146extern int ata_bus_probe(struct ata_port *ap);
147extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
148 unsigned int id, u64 lun);
149void ata_scsi_sdev_config(struct scsi_device *sdev);
150int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev);
151void ata_scsi_dump_cdb(struct ata_port *ap, struct scsi_cmnd *cmd);
152int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev);
153
154/* libata-eh.c */
155extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
156extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
157extern void ata_eh_acquire(struct ata_port *ap);
158extern void ata_eh_release(struct ata_port *ap);
159extern void ata_scsi_error(struct Scsi_Host *host);
160extern void ata_eh_fastdrain_timerfn(struct timer_list *t);
161extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
162extern void ata_dev_disable(struct ata_device *dev);
163extern void ata_eh_detach_dev(struct ata_device *dev);
164extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
165 unsigned int action);
166extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
167 unsigned int action);
168extern void ata_eh_autopsy(struct ata_port *ap);
169const char *ata_get_cmd_descript(u8 command);
170extern void ata_eh_report(struct ata_port *ap);
171extern 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);
174extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
175extern 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);
179extern void ata_eh_finish(struct ata_port *ap);
180extern int ata_ering_map(struct ata_ering *ering,
181 int (*map_fn)(struct ata_ering_entry *, void *),
182 void *arg);
183extern unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key);
184extern unsigned int atapi_eh_request_sense(struct ata_device *dev,
185 u8 *sense_buf, u8 dfl_sense_key);
186
187/* libata-pmp.c */
188#ifdef CONFIG_SATA_PMP
189extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
190extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
191extern int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
192 unsigned hints);
193extern int sata_pmp_attach(struct ata_device *dev);
194#else /* CONFIG_SATA_PMP */
195static inline int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val)
196{
197 return -EINVAL;
198}
199
200static inline int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val)
201{
202 return -EINVAL;
203}
204
205static inline int sata_pmp_set_lpm(struct ata_link *link,
206 enum ata_lpm_policy policy, unsigned hints)
207{
208 return -EINVAL;
209}
210
211static inline int sata_pmp_attach(struct ata_device *dev)
212{
213 return -EINVAL;
214}
215#endif /* CONFIG_SATA_PMP */
216
217/* libata-sff.c */
218#ifdef CONFIG_ATA_SFF
219extern void ata_sff_flush_pio_task(struct ata_port *ap);
220extern void ata_sff_port_init(struct ata_port *ap);
221extern int ata_sff_init(void);
222extern void ata_sff_exit(void);
223#else /* CONFIG_ATA_SFF */
224static inline void ata_sff_flush_pio_task(struct ata_port *ap)
225{ }
226static inline void ata_sff_port_init(struct ata_port *ap)
227{ }
228static inline int ata_sff_init(void)
229{ return 0; }
230static inline void ata_sff_exit(void)
231{ }
232#endif /* CONFIG_ATA_SFF */
233
234/* libata-zpodd.c */
235#ifdef CONFIG_SATA_ZPODD
236void zpodd_init(struct ata_device *dev);
237void zpodd_exit(struct ata_device *dev);
238static inline bool zpodd_dev_enabled(struct ata_device *dev)
239{
240 return dev->zpodd != NULL;
241}
242void zpodd_on_suspend(struct ata_device *dev);
243bool zpodd_zpready(struct ata_device *dev);
244void zpodd_enable_run_wake(struct ata_device *dev);
245void zpodd_disable_run_wake(struct ata_device *dev);
246void zpodd_post_poweron(struct ata_device *dev);
247#else /* CONFIG_SATA_ZPODD */
248static inline void zpodd_init(struct ata_device *dev) {}
249static inline void zpodd_exit(struct ata_device *dev) {}
250static inline bool zpodd_dev_enabled(struct ata_device *dev) { return false; }
251static inline void zpodd_on_suspend(struct ata_device *dev) {}
252static inline bool zpodd_zpready(struct ata_device *dev) { return false; }
253static inline void zpodd_enable_run_wake(struct ata_device *dev) {}
254static inline void zpodd_disable_run_wake(struct ata_device *dev) {}
255static inline void zpodd_post_poweron(struct ata_device *dev) {}
256#endif /* CONFIG_SATA_ZPODD */
257
258#endif /* __LIBATA_H__ */