| /* |
| * libata.h - helper library for ATA |
| * |
| * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
| * Copyright 2003-2004 Jeff Garzik |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; see the file COPYING. If not, write to |
| * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * |
| * libata documentation is available via 'make {ps|pdf}docs', |
| * as Documentation/DocBook/libata.* |
| * |
| */ |
| |
| #ifndef __LIBATA_H__ |
| #define __LIBATA_H__ |
| |
| #define DRV_NAME "libata" |
| #define DRV_VERSION "3.00" /* must be exactly four chars */ |
| |
| struct ata_scsi_args { |
| struct ata_device *dev; |
| u16 *id; |
| struct scsi_cmnd *cmd; |
| void (*done)(struct scsi_cmnd *); |
| }; |
| |
| /* 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 struct device_type ata_port_type; |
| extern struct ata_link *ata_dev_phys_link(struct ata_device *dev); |
| extern void ata_force_cbl(struct ata_port *ap); |
| extern u64 ata_tf_to_lba(const struct ata_taskfile *tf); |
| extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf); |
| extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); |
| extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, |
| u64 block, u32 n_block, unsigned int tf_flags, |
| unsigned int tag); |
| extern u64 ata_tf_read_block(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 long timeout); |
| extern unsigned ata_exec_internal_sg(struct ata_device *dev, |
| struct ata_taskfile *tf, const u8 *cdb, |
| int dma_dir, struct scatterlist *sg, |
| unsigned int n_elem, unsigned long timeout); |
| extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); |
| 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 enable, u8 feature); |
| extern void ata_sg_clean(struct ata_queued_cmd *qc); |
| 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); |
| |
| #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 int ata_acpi_on_suspend(struct ata_port *ap); |
| 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 int ata_acpi_register(void); |
| extern void ata_acpi_unregister(void); |
| extern void ata_acpi_bind(struct ata_device *dev); |
| extern void ata_acpi_unbind(struct ata_device *dev); |
| #else |
| static inline void ata_acpi_dissociate(struct ata_host *host) { } |
| static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; } |
| 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 int ata_acpi_register(void) { return 0; } |
| static inline void ata_acpi_unregister(void) { } |
| static inline void ata_acpi_bind(struct ata_device *dev) { } |
| static inline void ata_acpi_unbind(struct ata_device *dev) { } |
| #endif |
| |
| /* libata-scsi.c */ |
| extern int ata_scsi_add_hosts(struct ata_host *host, |
| 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 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, unsigned int lun); |
| |
| |
| /* libata-eh.c */ |
| extern unsigned long 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 enum blk_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); |
| extern void ata_scsi_error(struct Scsi_Host *host); |
| extern void ata_eh_fastdrain_timerfn(unsigned long arg); |
| 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 unsigned int ata_read_log_page(struct ata_device *dev, u8 log, |
| u8 page, void *buf, unsigned int sectors); |
| extern void ata_eh_autopsy(struct ata_port *ap); |
| const char *ata_get_cmd_descript(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); |
| #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) {} |
| #endif /* CONFIG_SATA_ZPODD */ |
| |
| #endif /* __LIBATA_H__ */ |