forked from Minki/linux
fe30911b34
Separate out ata_dev_reread_id() from ata_dev_revalidate(). ata_dev_reread_id() reads IDENTIFY page and determines whether the same device is still there. ata_dev_revalidate() reconfigures after reread completes. This will be used by ACPI update. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
164 lines
6.3 KiB
C
164 lines
6.3 KiB
C
/*
|
|
* 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_reread_id(struct ata_device *dev, unsigned int readid_flags);
|
|
extern int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_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_device *dev);
|
|
#else
|
|
static inline int ata_acpi_exec_tfs(struct ata_port *ap)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int ata_acpi_push_id(struct ata_device *dev)
|
|
{
|
|
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__ */
|