/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2003-2004 Red Hat, Inc. All rights reserved. * Copyright 2003-2004 Jeff Garzik * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/driver-api/libata.rst * * Hardware documentation available from http://www.t13.org/ */ #ifndef __LINUX_ATA_H__ #define __LINUX_ATA_H__ #include <linux/bits.h> #include <linux/string.h> #include <linux/types.h> /* defines only for the constants which don't work well as enums */ #define ATA_DMA_BOUNDARY … #define ATA_DMA_MASK … enum { … }; enum ata_prot_flags { … }; enum ata_ioctls { … }; /* core structures */ struct ata_bmdma_prd { … }; /* * id tests */ #define ata_id_is_ata(id) … #define ata_id_has_lba(id) … #define ata_id_has_dma(id) … #define ata_id_has_ncq(id) … #define ata_id_queue_depth(id) … #define ata_id_removable(id) … #define ata_id_has_atapi_AN(id) … #define ata_id_has_fpdma_aa(id) … #define ata_id_has_devslp(id) … #define ata_id_has_ncq_autosense(id) … #define ata_id_has_dipm(id) … #define ata_id_iordy_disable(id) … #define ata_id_has_iordy(id) … #define ata_id_u32(id,n) … #define ata_id_u64(id,n) … #define ata_id_cdb_intr(id) … #define ata_id_has_da(id) … static inline bool ata_id_has_hipm(const u16 *id) { … } static inline bool ata_id_has_fua(const u16 *id) { … } static inline bool ata_id_has_flush(const u16 *id) { … } static inline bool ata_id_has_flush_ext(const u16 *id) { … } static inline u32 ata_id_logical_sector_size(const u16 *id) { … } static inline u8 ata_id_log2_per_physical_sector(const u16 *id) { … } /* Offset of logical sectors relative to physical sectors. * * If device has more than one logical sector per physical sector * (aka 512 byte emulation), vendors might offset the "sector 0" address * so sector 63 is "naturally aligned" - e.g. FAT partition table. * This avoids Read/Mod/Write penalties when using FAT partition table * and updating "well aligned" (FS perspective) physical sectors on every * transaction. */ static inline u16 ata_id_logical_sector_offset(const u16 *id, u8 log2_per_phys) { … } static inline bool ata_id_has_lba48(const u16 *id) { … } static inline bool ata_id_hpa_enabled(const u16 *id) { … } static inline bool ata_id_has_wcache(const u16 *id) { … } static inline bool ata_id_has_pm(const u16 *id) { … } static inline bool ata_id_rahead_enabled(const u16 *id) { … } static inline bool ata_id_wcache_enabled(const u16 *id) { … } static inline bool ata_id_has_read_log_dma_ext(const u16 *id) { … } static inline bool ata_id_has_sense_reporting(const u16 *id) { … } static inline bool ata_id_sense_reporting_enabled(const u16 *id) { … } /** * * Word: 206 - SCT Command Transport * 15:12 - Vendor Specific * 11:6 - Reserved * 5 - SCT Command Transport Data Tables supported * 4 - SCT Command Transport Features Control supported * 3 - SCT Command Transport Error Recovery Control supported * 2 - SCT Command Transport Write Same supported * 1 - SCT Command Transport Long Sector Access supported * 0 - SCT Command Transport supported */ static inline bool ata_id_sct_data_tables(const u16 *id) { … } static inline bool ata_id_sct_features_ctrl(const u16 *id) { … } static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id) { … } static inline bool ata_id_sct_long_sector_access(const u16 *id) { … } static inline bool ata_id_sct_supported(const u16 *id) { … } /** * ata_id_major_version - get ATA level of drive * @id: Identify data * * Caveats: * ATA-1 considers identify optional * ATA-2 introduces mandatory identify * ATA-3 introduces word 80 and accurate reporting * * The practical impact of this is that ata_id_major_version cannot * reliably report on drives below ATA3. */ static inline unsigned int ata_id_major_version(const u16 *id) { … } static inline bool ata_id_is_sata(const u16 *id) { … } static inline bool ata_id_has_tpm(const u16 *id) { … } static inline bool ata_id_has_dword_io(const u16 *id) { … } static inline bool ata_id_has_trusted(const u16 *id) { … } static inline bool ata_id_has_unload(const u16 *id) { … } static inline bool ata_id_has_wwn(const u16 *id) { … } static inline int ata_id_form_factor(const u16 *id) { … } static inline int ata_id_rotation_rate(const u16 *id) { … } static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) { … } static inline bool ata_id_has_ncq_non_data(const u16 *id) { … } static inline bool ata_id_has_ncq_prio(const u16 *id) { … } static inline bool ata_id_has_trim(const u16 *id) { … } static inline bool ata_id_has_zero_after_trim(const u16 *id) { … } static inline bool ata_id_current_chs_valid(const u16 *id) { … } static inline bool ata_id_is_cfa(const u16 *id) { … } static inline bool ata_id_is_ssd(const u16 *id) { … } static inline u8 ata_id_zoned_cap(const u16 *id) { … } static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) { … } static inline bool ata_drive_40wire(const u16 *dev_id) { … } static inline bool ata_drive_40wire_relaxed(const u16 *dev_id) { … } static inline int atapi_cdb_len(const u16 *dev_id) { … } static inline int atapi_command_packet_set(const u16 *dev_id) { … } static inline bool atapi_id_dmadir(const u16 *dev_id) { … } static inline bool ata_ok(u8 status) { … } static inline bool lba_28_ok(u64 block, u32 n_block) { … } static inline bool lba_48_ok(u64 block, u32 n_block) { … } #define sata_pmp_gscr_vendor(gscr) … #define sata_pmp_gscr_devid(gscr) … #define sata_pmp_gscr_rev(gscr) … #define sata_pmp_gscr_ports(gscr) … #endif /* __LINUX_ATA_H__ */
Codebase Browser
linux