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 "2.00" /* must be exactly four chars */ 33 34 struct ata_scsi_args { 35 struct ata_device *dev; 36 u16 *id; 37 struct scsi_cmnd *cmd; 38 void (*done)(struct scsi_cmnd *); 39 }; 40 41 /* libata-core.c */ 42 enum { 43 /* flags for ata_dev_read_id() */ 44 ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */ 45 ATA_READID_DETECT = (1 << 1), /* perform presence detection 46 * using polling IDENTIFY */ 47 }; 48 49 extern struct workqueue_struct *ata_aux_wq; 50 extern int atapi_enabled; 51 extern int atapi_dmadir; 52 extern int libata_fua; 53 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); 54 extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc); 55 extern void ata_dev_disable(struct ata_device *dev); 56 extern void ata_port_flush_task(struct ata_port *ap); 57 extern unsigned ata_exec_internal(struct ata_device *dev, 58 struct ata_taskfile *tf, const u8 *cdb, 59 int dma_dir, void *buf, unsigned int buflen); 60 extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); 61 extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, 62 unsigned int flags, u16 *id); 63 extern int ata_dev_revalidate(struct ata_device *dev, unsigned int flags); 64 extern int ata_dev_configure(struct ata_device *dev); 65 extern int sata_down_spd_limit(struct ata_port *ap); 66 extern int sata_set_spd_needed(struct ata_port *ap); 67 extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0); 68 extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev); 69 extern void ata_qc_free(struct ata_queued_cmd *qc); 70 extern void ata_qc_issue(struct ata_queued_cmd *qc); 71 extern void __ata_qc_complete(struct ata_queued_cmd *qc); 72 extern int ata_check_atapi_dma(struct ata_queued_cmd *qc); 73 extern void ata_dev_select(struct ata_port *ap, unsigned int device, 74 unsigned int wait, unsigned int can_sleep); 75 extern void swap_buf_le16(u16 *buf, unsigned int buf_words); 76 extern int ata_flush_cache(struct ata_device *dev); 77 extern void ata_dev_init(struct ata_device *dev); 78 extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg); 79 extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg); 80 extern void ata_port_init(struct ata_port *ap, struct ata_host *host, 81 const struct ata_probe_ent *ent, unsigned int port_no); 82 extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev, 83 const struct ata_port_info *port); 84 85 86 /* libata-scsi.c */ 87 extern struct scsi_transport_template ata_scsi_transport_template; 88 89 extern void ata_scsi_scan_host(struct ata_port *ap); 90 extern int ata_scsi_offline_dev(struct ata_device *dev); 91 extern void ata_scsi_hotplug(void *data); 92 extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf, 93 unsigned int buflen); 94 95 extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf, 96 unsigned int buflen); 97 98 extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, 99 unsigned int buflen); 100 extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, 101 unsigned int buflen); 102 extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf, 103 unsigned int buflen); 104 extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf, 105 unsigned int buflen); 106 extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, 107 unsigned int buflen); 108 extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf, 109 unsigned int buflen); 110 extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf, 111 unsigned int buflen); 112 extern void ata_scsi_badcmd(struct scsi_cmnd *cmd, 113 void (*done)(struct scsi_cmnd *), 114 u8 asc, u8 ascq); 115 extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, 116 u8 sk, u8 asc, u8 ascq); 117 extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args, 118 unsigned int (*actor) (struct ata_scsi_args *args, 119 u8 *rbuf, unsigned int buflen)); 120 extern void ata_schedule_scsi_eh(struct Scsi_Host *shost); 121 extern void ata_scsi_dev_rescan(void *data); 122 extern int ata_bus_probe(struct ata_port *ap); 123 124 /* libata-eh.c */ 125 extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); 126 extern void ata_scsi_error(struct Scsi_Host *host); 127 extern void ata_port_wait_eh(struct ata_port *ap); 128 extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); 129 130 /* libata-sff.c */ 131 extern u8 ata_irq_on(struct ata_port *ap); 132 133 #endif /* __LIBATA_H__ */ 134