/* * 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" 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 unsigned int ata_print_id; extern struct workqueue_struct *ata_aux_wq; extern int atapi_enabled; extern int atapi_dmadir; extern int libata_fua; extern int libata_noacpi; extern int ata_spindown_compat; 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 void ata_dev_disable(struct ata_device *dev); extern void ata_port_flush_task(struct ata_port *ap); extern unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen); 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); extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, unsigned int flags, u16 *id); extern int ata_dev_revalidate(struct ata_device *dev, unsigned int flags); extern int ata_dev_configure(struct ata_device *dev); extern int sata_down_spd_limit(struct ata_port *ap); extern int sata_set_spd_needed(struct ata_port *ap); extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel); extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev); 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 ata_check_atapi_dma(struct ata_queued_cmd *qc); extern void ata_dev_select(struct ata_port *ap, unsigned int device, unsigned int wait, unsigned int can_sleep); extern void swap_buf_le16(u16 *buf, unsigned int buf_words); extern int ata_flush_cache(struct ata_device *dev); extern void ata_dev_init(struct ata_device *dev); 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); /* libata-acpi.c */ #ifdef CONFIG_ATA_ACPI extern int ata_acpi_exec_tfs(struct ata_port *ap); extern int ata_acpi_push_id(struct ata_port *ap, unsigned int ix); #else static inline int ata_acpi_exec_tfs(struct ata_port *ap) { return 0; } static inline int ata_acpi_push_id(struct ata_port *ap, unsigned int ix) { return 0; } #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); extern int ata_scsi_offline_dev(struct ata_device *dev); extern void ata_scsi_hotplug(struct work_struct *work); extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen); extern void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8 asc, u8 ascq); extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq); extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args, unsigned int (*actor) (struct ata_scsi_args *args, u8 *rbuf, unsigned int buflen)); 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); /* libata-eh.c */ extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); extern void ata_scsi_error(struct Scsi_Host *host); extern void ata_port_wait_eh(struct ata_port *ap); extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); /* libata-sff.c */ extern u8 ata_irq_on(struct ata_port *ap); #endif /* __LIBATA_H__ */