1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28#ifndef __LIBATA_H__
29#define __LIBATA_H__
30
31#define DRV_NAME "libata"
32#define DRV_VERSION "3.00"
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
42enum {
43
44 ATA_READID_POSTRESET = (1 << 0),
45
46
47 ATA_DNXFER_PIO = 0,
48 ATA_DNXFER_DMA = 1,
49 ATA_DNXFER_40C = 2,
50 ATA_DNXFER_FORCE_PIO = 3,
51 ATA_DNXFER_FORCE_PIO0 = 4,
52
53 ATA_DNXFER_QUIET = (1 << 31),
54};
55
56extern unsigned int ata_print_id;
57extern int atapi_passthru16;
58extern int libata_fua;
59extern int libata_noacpi;
60extern int libata_allow_tpm;
61extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
62extern void ata_force_cbl(struct ata_port *ap);
63extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
64extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf);
65extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
66extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
67 u64 block, u32 n_block, unsigned int tf_flags,
68 unsigned int tag);
69extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev);
70extern unsigned ata_exec_internal(struct ata_device *dev,
71 struct ata_taskfile *tf, const u8 *cdb,
72 int dma_dir, void *buf, unsigned int buflen,
73 unsigned long timeout);
74extern unsigned ata_exec_internal_sg(struct ata_device *dev,
75 struct ata_taskfile *tf, const u8 *cdb,
76 int dma_dir, struct scatterlist *sg,
77 unsigned int n_elem, unsigned long timeout);
78extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd);
79extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
80 int (*check_ready)(struct ata_link *link));
81extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
82 unsigned int flags, u16 *id);
83extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags);
84extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
85 unsigned int readid_flags);
86extern int ata_dev_configure(struct ata_device *dev);
87extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit);
88extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
89extern unsigned int ata_dev_set_feature(struct ata_device *dev,
90 u8 enable, u8 feature);
91extern void ata_sg_clean(struct ata_queued_cmd *qc);
92extern void ata_qc_free(struct ata_queued_cmd *qc);
93extern void ata_qc_issue(struct ata_queued_cmd *qc);
94extern void __ata_qc_complete(struct ata_queued_cmd *qc);
95extern int atapi_check_dma(struct ata_queued_cmd *qc);
96extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
97extern bool ata_phys_link_online(struct ata_link *link);
98extern bool ata_phys_link_offline(struct ata_link *link);
99extern void ata_dev_init(struct ata_device *dev);
100extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);
101extern int sata_link_init_spd(struct ata_link *link);
102extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
103extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
104extern struct ata_port *ata_port_alloc(struct ata_host *host);
105extern const char *sata_spd_string(unsigned int spd);
106
107
108#ifdef CONFIG_ATA_ACPI
109extern unsigned int ata_acpi_gtf_filter;
110
111extern void ata_acpi_associate_sata_port(struct ata_port *ap);
112extern void ata_acpi_associate(struct ata_host *host);
113extern void ata_acpi_dissociate(struct ata_host *host);
114extern int ata_acpi_on_suspend(struct ata_port *ap);
115extern void ata_acpi_on_resume(struct ata_port *ap);
116extern int ata_acpi_on_devcfg(struct ata_device *dev);
117extern void ata_acpi_on_disable(struct ata_device *dev);
118extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
119#else
120static inline void ata_acpi_associate_sata_port(struct ata_port *ap) { }
121static inline void ata_acpi_associate(struct ata_host *host) { }
122static inline void ata_acpi_dissociate(struct ata_host *host) { }
123static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
124static inline void ata_acpi_on_resume(struct ata_port *ap) { }
125static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
126static inline void ata_acpi_on_disable(struct ata_device *dev) { }
127static inline void ata_acpi_set_state(struct ata_port *ap,
128 pm_message_t state) { }
129#endif
130
131
132extern int ata_scsi_add_hosts(struct ata_host *host,
133 struct scsi_host_template *sht);
134extern void ata_scsi_scan_host(struct ata_port *ap, int sync);
135extern int ata_scsi_offline_dev(struct ata_device *dev);
136extern void ata_scsi_media_change_notify(struct ata_device *dev);
137extern void ata_scsi_hotplug(struct work_struct *work);
138extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
139extern void ata_scsi_dev_rescan(struct work_struct *work);
140extern int ata_bus_probe(struct ata_port *ap);
141extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
142 unsigned int id, unsigned int lun);
143
144
145
146extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
147extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
148extern void ata_eh_acquire(struct ata_port *ap);
149extern void ata_eh_release(struct ata_port *ap);
150extern enum blk_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
151extern void ata_scsi_error(struct Scsi_Host *host);
152extern void ata_port_wait_eh(struct ata_port *ap);
153extern void ata_eh_fastdrain_timerfn(unsigned long arg);
154extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
155extern void ata_dev_disable(struct ata_device *dev);
156extern void ata_eh_detach_dev(struct ata_device *dev);
157extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
158 unsigned int action);
159extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
160 unsigned int action);
161extern void ata_eh_autopsy(struct ata_port *ap);
162const char *ata_get_cmd_descript(u8 command);
163extern void ata_eh_report(struct ata_port *ap);
164extern int ata_eh_reset(struct ata_link *link, int classify,
165 ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
166 ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
167extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
168extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
169 ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
170 ata_postreset_fn_t postreset,
171 struct ata_link **r_failed_disk);
172extern void ata_eh_finish(struct ata_port *ap);
173extern int ata_ering_map(struct ata_ering *ering,
174 int (*map_fn)(struct ata_ering_entry *, void *),
175 void *arg);
176
177
178#ifdef CONFIG_SATA_PMP
179extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
180extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
181extern int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
182 unsigned hints);
183extern int sata_pmp_attach(struct ata_device *dev);
184#else
185static inline int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val)
186{
187 return -EINVAL;
188}
189
190static inline int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val)
191{
192 return -EINVAL;
193}
194
195static inline int sata_pmp_set_lpm(struct ata_link *link,
196 enum ata_lpm_policy policy, unsigned hints)
197{
198 return -EINVAL;
199}
200
201static inline int sata_pmp_attach(struct ata_device *dev)
202{
203 return -EINVAL;
204}
205#endif
206
207
208#ifdef CONFIG_ATA_SFF
209extern void ata_sff_flush_pio_task(struct ata_port *ap);
210extern void ata_sff_port_init(struct ata_port *ap);
211extern int ata_sff_init(void);
212extern void ata_sff_exit(void);
213#else
214static inline void ata_sff_flush_pio_task(struct ata_port *ap)
215{ }
216static inline void ata_sff_port_init(struct ata_port *ap)
217{ }
218static inline int ata_sff_init(void)
219{ return 0; }
220static inline void ata_sff_exit(void)
221{ }
222#endif
223
224#endif
225