| 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 | |
| 33 | struct ata_scsi_args { |
| 34 | struct ata_device *dev; |
| 35 | u16 *id; |
| 36 | struct scsi_cmnd *cmd; |
| 37 | void (*done)(struct scsi_cmnd *); |
| 38 | }; |
| 39 | |
| 40 | /* libata-core.c */ |
| 41 | enum { |
| 42 | /* flags for ata_dev_read_id() */ |
| 43 | ATA_READID_POSTRESET = (1 << 0), /* reading ID after reset */ |
| 44 | }; |
| 45 | |
| 46 | extern struct workqueue_struct *ata_aux_wq; |
| 47 | extern int atapi_enabled; |
| 48 | extern int atapi_dmadir; |
| 49 | extern int libata_fua; |
| 50 | extern int noacpi; |
| 51 | extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); |
| 52 | extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, |
| 53 | u64 block, u32 n_block, unsigned int tf_flags, |
| 54 | unsigned int tag); |
| 55 | extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev); |
| 56 | extern void ata_dev_disable(struct ata_device *dev); |
| 57 | extern void ata_port_flush_task(struct ata_port *ap); |
| 58 | extern unsigned ata_exec_internal(struct ata_device *dev, |
| 59 | struct ata_taskfile *tf, const u8 *cdb, |
| 60 | int dma_dir, void *buf, unsigned int buflen); |
| 61 | extern unsigned ata_exec_internal_sg(struct ata_device *dev, |
| 62 | struct ata_taskfile *tf, const u8 *cdb, |
| 63 | int dma_dir, struct scatterlist *sg, |
| 64 | unsigned int n_elem); |
| 65 | extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd); |
| 66 | extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, |
| 67 | unsigned int flags, u16 *id); |
| 68 | extern int ata_dev_revalidate(struct ata_device *dev, unsigned int flags); |
| 69 | extern int ata_dev_configure(struct ata_device *dev); |
| 70 | extern int sata_down_spd_limit(struct ata_port *ap); |
| 71 | extern int sata_set_spd_needed(struct ata_port *ap); |
| 72 | extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0); |
| 73 | extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev); |
| 74 | extern void ata_sg_clean(struct ata_queued_cmd *qc); |
| 75 | extern void ata_qc_free(struct ata_queued_cmd *qc); |
| 76 | extern void ata_qc_issue(struct ata_queued_cmd *qc); |
| 77 | extern void __ata_qc_complete(struct ata_queued_cmd *qc); |
| 78 | extern int ata_check_atapi_dma(struct ata_queued_cmd *qc); |
| 79 | extern void ata_dev_select(struct ata_port *ap, unsigned int device, |
| 80 | unsigned int wait, unsigned int can_sleep); |
| 81 | extern void swap_buf_le16(u16 *buf, unsigned int buf_words); |
| 82 | extern int ata_flush_cache(struct ata_device *dev); |
| 83 | extern void ata_dev_init(struct ata_device *dev); |
| 84 | extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg); |
| 85 | extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg); |
| 86 | extern void ata_port_init(struct ata_port *ap, struct ata_host *host, |
| 87 | const struct ata_probe_ent *ent, unsigned int port_no); |
| 88 | extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev, |
| 89 | const struct ata_port_info *port); |
| 90 | |
| 91 | /* libata-acpi.c */ |
| 92 | #ifdef CONFIG_SATA_ACPI |
| 93 | extern int ata_acpi_exec_tfs(struct ata_port *ap); |
| 94 | extern int ata_acpi_push_id(struct ata_port *ap, unsigned int ix); |
| 95 | #else |
| 96 | static inline int ata_acpi_exec_tfs(struct ata_port *ap) |
| 97 | { |
| 98 | return 0; |
| 99 | } |
| 100 | static inline int ata_acpi_push_id(struct ata_port *ap, unsigned int ix) |
| 101 | { |
| 102 | return 0; |
| 103 | } |
| 104 | #endif |
| 105 | |
| 106 | /* libata-scsi.c */ |
| 107 | extern struct scsi_transport_template ata_scsi_transport_template; |
| 108 | |
| 109 | extern void ata_scsi_scan_host(struct ata_port *ap); |
| 110 | extern int ata_scsi_offline_dev(struct ata_device *dev); |
| 111 | extern void ata_scsi_hotplug(struct work_struct *work); |
| 112 | extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf, |
| 113 | unsigned int buflen); |
| 114 | |
| 115 | extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf, |
| 116 | unsigned int buflen); |
| 117 | |
| 118 | extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, |
| 119 | unsigned int buflen); |
| 120 | extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, |
| 121 | unsigned int buflen); |
| 122 | extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf, |
| 123 | unsigned int buflen); |
| 124 | extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf, |
| 125 | unsigned int buflen); |
| 126 | extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, |
| 127 | unsigned int buflen); |
| 128 | extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf, |
| 129 | unsigned int buflen); |
| 130 | extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf, |
| 131 | unsigned int buflen); |
| 132 | extern void ata_scsi_badcmd(struct scsi_cmnd *cmd, |
| 133 | void (*done)(struct scsi_cmnd *), |
| 134 | u8 asc, u8 ascq); |
| 135 | extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, |
| 136 | u8 sk, u8 asc, u8 ascq); |
| 137 | extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args, |
| 138 | unsigned int (*actor) (struct ata_scsi_args *args, |
| 139 | u8 *rbuf, unsigned int buflen)); |
| 140 | extern void ata_schedule_scsi_eh(struct Scsi_Host *shost); |
| 141 | extern void ata_scsi_dev_rescan(struct work_struct *work); |
| 142 | extern int ata_bus_probe(struct ata_port *ap); |
| 143 | |
| 144 | /* libata-eh.c */ |
| 145 | extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); |
| 146 | extern void ata_scsi_error(struct Scsi_Host *host); |
| 147 | extern void ata_port_wait_eh(struct ata_port *ap); |
| 148 | extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc); |
| 149 | |
| 150 | /* libata-sff.c */ |
| 151 | extern u8 ata_irq_on(struct ata_port *ap); |
| 152 | |
| 153 | /* pata_sis.c */ |
| 154 | extern struct ata_port_info sis_info133; |
| 155 | |
| 156 | #endif /* __LIBATA_H__ */ |