239 lines
9.8 KiB
C
239 lines
9.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* libata.h - helper library for ATA
|
|
*
|
|
* Copyright 2003-2004 Red Hat, Inc. All rights reserved.
|
|
* Copyright 2003-2004 Jeff Garzik
|
|
*
|
|
* libata documentation is available via 'make {ps|pdf}docs',
|
|
* as Documentation/driver-api/libata.rst
|
|
*/
|
|
|
|
#ifndef __LIBATA_H__
|
|
#define __LIBATA_H__
|
|
|
|
#define DRV_NAME "libata"
|
|
#define DRV_VERSION "3.00" /* must be exactly four chars */
|
|
|
|
/* libata-core.c */
|
|
enum {
|
|
/* flags for ata_dev_read_id() */
|
|
ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */
|
|
|
|
/* selector for ata_down_xfermask_limit() */
|
|
ATA_DNXFER_PIO = 0, /* speed down PIO */
|
|
ATA_DNXFER_DMA = 1, /* speed down DMA */
|
|
ATA_DNXFER_40C = 2, /* apply 40c cable limit */
|
|
ATA_DNXFER_FORCE_PIO = 3, /* force PIO */
|
|
ATA_DNXFER_FORCE_PIO0 = 4, /* force PIO0 */
|
|
|
|
ATA_DNXFER_QUIET = (1 << 31),
|
|
};
|
|
|
|
extern atomic_t ata_print_id;
|
|
extern int atapi_passthru16;
|
|
extern int libata_fua;
|
|
extern int libata_noacpi;
|
|
extern int libata_allow_tpm;
|
|
extern const struct device_type ata_port_type;
|
|
extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
|
|
#ifdef CONFIG_ATA_FORCE
|
|
extern void ata_force_cbl(struct ata_port *ap);
|
|
#else
|
|
static inline void ata_force_cbl(struct ata_port *ap) { }
|
|
#endif
|
|
extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
|
|
extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf);
|
|
extern int ata_build_rw_tf(struct ata_queued_cmd *qc, u64 block, u32 n_block,
|
|
unsigned int tf_flags, int class);
|
|
extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
|
|
struct ata_device *dev);
|
|
extern unsigned ata_exec_internal(struct ata_device *dev,
|
|
struct ata_taskfile *tf, const u8 *cdb,
|
|
int dma_dir, void *buf, unsigned int buflen,
|
|
unsigned int timeout);
|
|
extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
|
|
int (*check_ready)(struct ata_link *link));
|
|
extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
|
|
unsigned int flags, u16 *id);
|
|
extern int ata_dev_reread_id(struct ata_device *dev, unsigned int readid_flags);
|
|
extern int ata_dev_revalidate(struct ata_device *dev, unsigned int new_class,
|
|
unsigned int readid_flags);
|
|
extern int ata_dev_configure(struct ata_device *dev);
|
|
extern int sata_down_spd_limit(struct ata_link *link, u32 spd_limit);
|
|
extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
|
|
extern unsigned int ata_dev_set_feature(struct ata_device *dev,
|
|
u8 subcmd, u8 action);
|
|
extern void ata_qc_free(struct ata_queued_cmd *qc);
|
|
extern void ata_qc_issue(struct ata_queued_cmd *qc);
|
|
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
|
|
extern int atapi_check_dma(struct ata_queued_cmd *qc);
|
|
extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
|
|
extern bool ata_phys_link_online(struct ata_link *link);
|
|
extern bool ata_phys_link_offline(struct ata_link *link);
|
|
extern void ata_dev_init(struct ata_device *dev);
|
|
extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);
|
|
extern int sata_link_init_spd(struct ata_link *link);
|
|
extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
|
|
extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
|
|
extern struct ata_port *ata_port_alloc(struct ata_host *host);
|
|
extern const char *sata_spd_string(unsigned int spd);
|
|
extern int ata_port_probe(struct ata_port *ap);
|
|
extern void __ata_port_probe(struct ata_port *ap);
|
|
extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
|
|
u8 page, void *buf, unsigned int sectors);
|
|
|
|
#define to_ata_port(d) container_of(d, struct ata_port, tdev)
|
|
|
|
/* libata-acpi.c */
|
|
#ifdef CONFIG_ATA_ACPI
|
|
extern unsigned int ata_acpi_gtf_filter;
|
|
extern void ata_acpi_dissociate(struct ata_host *host);
|
|
extern void ata_acpi_on_resume(struct ata_port *ap);
|
|
extern int ata_acpi_on_devcfg(struct ata_device *dev);
|
|
extern void ata_acpi_on_disable(struct ata_device *dev);
|
|
extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
|
|
extern void ata_acpi_bind_port(struct ata_port *ap);
|
|
extern void ata_acpi_bind_dev(struct ata_device *dev);
|
|
extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev);
|
|
#else
|
|
static inline void ata_acpi_dissociate(struct ata_host *host) { }
|
|
static inline void ata_acpi_on_resume(struct ata_port *ap) { }
|
|
static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
|
|
static inline void ata_acpi_on_disable(struct ata_device *dev) { }
|
|
static inline void ata_acpi_set_state(struct ata_port *ap,
|
|
pm_message_t state) { }
|
|
static inline void ata_acpi_bind_port(struct ata_port *ap) {}
|
|
static inline void ata_acpi_bind_dev(struct ata_device *dev) {}
|
|
#endif
|
|
|
|
/* libata-scsi.c */
|
|
extern struct ata_device *ata_scsi_find_dev(struct ata_port *ap,
|
|
const struct scsi_device *scsidev);
|
|
extern int ata_scsi_add_hosts(struct ata_host *host,
|
|
const struct scsi_host_template *sht);
|
|
extern void ata_scsi_scan_host(struct ata_port *ap, int sync);
|
|
extern int ata_scsi_offline_dev(struct ata_device *dev);
|
|
extern bool ata_scsi_sense_is_valid(u8 sk, u8 asc, u8 ascq);
|
|
extern void ata_scsi_set_sense(struct ata_device *dev,
|
|
struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq);
|
|
extern void ata_scsi_set_sense_information(struct ata_device *dev,
|
|
struct scsi_cmnd *cmd,
|
|
const struct ata_taskfile *tf);
|
|
extern void ata_scsi_media_change_notify(struct ata_device *dev);
|
|
extern void ata_scsi_hotplug(struct work_struct *work);
|
|
extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
|
|
extern void ata_scsi_dev_rescan(struct work_struct *work);
|
|
extern int ata_bus_probe(struct ata_port *ap);
|
|
extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
|
|
unsigned int id, u64 lun);
|
|
void ata_scsi_sdev_config(struct scsi_device *sdev);
|
|
int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev);
|
|
int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev);
|
|
|
|
/* libata-eh.c */
|
|
extern unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
|
|
extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
|
|
extern void ata_eh_acquire(struct ata_port *ap);
|
|
extern void ata_eh_release(struct ata_port *ap);
|
|
extern void ata_scsi_error(struct Scsi_Host *host);
|
|
extern void ata_eh_fastdrain_timerfn(struct timer_list *t);
|
|
extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
|
|
extern void ata_dev_disable(struct ata_device *dev);
|
|
extern void ata_eh_detach_dev(struct ata_device *dev);
|
|
extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
|
|
unsigned int action);
|
|
extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
|
|
unsigned int action);
|
|
extern void ata_eh_autopsy(struct ata_port *ap);
|
|
const char *ata_get_cmd_name(u8 command);
|
|
extern void ata_eh_report(struct ata_port *ap);
|
|
extern int ata_eh_reset(struct ata_link *link, int classify,
|
|
ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
|
|
ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
|
|
extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
|
|
extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
|
|
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
|
|
ata_postreset_fn_t postreset,
|
|
struct ata_link **r_failed_disk);
|
|
extern void ata_eh_finish(struct ata_port *ap);
|
|
extern int ata_ering_map(struct ata_ering *ering,
|
|
int (*map_fn)(struct ata_ering_entry *, void *),
|
|
void *arg);
|
|
extern unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key);
|
|
extern unsigned int atapi_eh_request_sense(struct ata_device *dev,
|
|
u8 *sense_buf, u8 dfl_sense_key);
|
|
|
|
/* libata-pmp.c */
|
|
#ifdef CONFIG_SATA_PMP
|
|
extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
|
|
extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
|
|
extern int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
|
|
unsigned hints);
|
|
extern int sata_pmp_attach(struct ata_device *dev);
|
|
#else /* CONFIG_SATA_PMP */
|
|
static inline int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int sata_pmp_set_lpm(struct ata_link *link,
|
|
enum ata_lpm_policy policy, unsigned hints)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int sata_pmp_attach(struct ata_device *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif /* CONFIG_SATA_PMP */
|
|
|
|
/* libata-sff.c */
|
|
#ifdef CONFIG_ATA_SFF
|
|
extern void ata_sff_flush_pio_task(struct ata_port *ap);
|
|
extern void ata_sff_port_init(struct ata_port *ap);
|
|
extern int ata_sff_init(void);
|
|
extern void ata_sff_exit(void);
|
|
#else /* CONFIG_ATA_SFF */
|
|
static inline void ata_sff_flush_pio_task(struct ata_port *ap)
|
|
{ }
|
|
static inline void ata_sff_port_init(struct ata_port *ap)
|
|
{ }
|
|
static inline int ata_sff_init(void)
|
|
{ return 0; }
|
|
static inline void ata_sff_exit(void)
|
|
{ }
|
|
#endif /* CONFIG_ATA_SFF */
|
|
|
|
/* libata-zpodd.c */
|
|
#ifdef CONFIG_SATA_ZPODD
|
|
void zpodd_init(struct ata_device *dev);
|
|
void zpodd_exit(struct ata_device *dev);
|
|
static inline bool zpodd_dev_enabled(struct ata_device *dev)
|
|
{
|
|
return dev->zpodd != NULL;
|
|
}
|
|
void zpodd_on_suspend(struct ata_device *dev);
|
|
bool zpodd_zpready(struct ata_device *dev);
|
|
void zpodd_enable_run_wake(struct ata_device *dev);
|
|
void zpodd_disable_run_wake(struct ata_device *dev);
|
|
void zpodd_post_poweron(struct ata_device *dev);
|
|
#else /* CONFIG_SATA_ZPODD */
|
|
static inline void zpodd_init(struct ata_device *dev) {}
|
|
static inline void zpodd_exit(struct ata_device *dev) {}
|
|
static inline bool zpodd_dev_enabled(struct ata_device *dev) { return false; }
|
|
static inline void zpodd_on_suspend(struct ata_device *dev) {}
|
|
static inline bool zpodd_zpready(struct ata_device *dev) { return false; }
|
|
static inline void zpodd_enable_run_wake(struct ata_device *dev) {}
|
|
static inline void zpodd_disable_run_wake(struct ata_device *dev) {}
|
|
static inline void zpodd_post_poweron(struct ata_device *dev) {}
|
|
#endif /* CONFIG_SATA_ZPODD */
|
|
|
|
#endif /* __LIBATA_H__ */
|