drivers/scsi/libata.h

   1 /*
   2  *  libata.h - helper library for ATA
   3  *
   4  *  Copyright 2003-2004 Red Hat, Inc.  All rights reserved.
   5  *  Copyright 2003-2004 Jeff Garzik
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2, or (at your option)
  11  *  any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; see the file COPYING.  If not, write to
  20  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  *
  23  *  libata documentation is available via 'make {ps|pdf}docs',
  24  *  as Documentation/DocBook/libata.*
  25  *
  26  */
  27
  28 #ifndef __LIBATA_H__
  29 #define __LIBATA_H__
  30
  31 #define DRV_NAME        "libata"
  32 #define DRV_VERSION     "1.12"  /* must be exactly four chars */
  33
  34 struct ata_scsi_args {
  35         u16                     *id;
  36         struct scsi_cmnd        *cmd;
  37         void                    (*done)(struct scsi_cmnd *);
  38 };
  39
  40 /* libata-core.c */
  41 extern int atapi_enabled;
  42 extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, u8 drv_stat);
  43 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
  44                                       struct ata_device *dev);
  45 extern void ata_qc_free(struct ata_queued_cmd *qc);
  46 extern int ata_qc_issue(struct ata_queued_cmd *qc);
  47 extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
  48 extern void ata_dev_select(struct ata_port *ap, unsigned int device,
  49                            unsigned int wait, unsigned int can_sleep);
  50 extern void ata_tf_to_host_nolock(struct ata_port *ap, struct ata_taskfile *tf);
  51 extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
  52
  53
  54 /* libata-scsi.c */
  55 extern void atapi_request_sense(struct ata_port *ap, struct ata_device *dev,
  56                          struct scsi_cmnd *cmd);
  57 extern void ata_scsi_scan_host(struct ata_port *ap);
  58 extern void ata_to_sense_error(struct ata_queued_cmd *qc, u8 drv_stat);
  59 extern int ata_scsi_error(struct Scsi_Host *host);
  60 extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
  61                                unsigned int buflen);
  62
  63 extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
  64                               unsigned int buflen);
  65
  66 extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
  67                               unsigned int buflen);
  68 extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
  69                               unsigned int buflen);
  70 extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
  71                             unsigned int buflen);
  72 extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
  73                                   unsigned int buflen);
  74 extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
  75                                   unsigned int buflen);
  76 extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
  77                                 unsigned int buflen);
  78 extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
  79                                    unsigned int buflen);
  80 extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
  81                             void (*done)(struct scsi_cmnd *),
  82                             u8 asc, u8 ascq);
  83 extern void ata_scsi_set_sense(struct scsi_cmnd *cmd,
  84                                u8 sk, u8 asc, u8 ascq);
  85 extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
  86                         unsigned int (*actor) (struct ata_scsi_args *args,
  87                                            u8 *rbuf, unsigned int buflen));
  88
  89 #endif /* __LIBATA_H__ */