source: mainline/uspace/drv/block/ahci/ahci_sata.h@ cc74cb5

/*
 * Copyright (c) 2012 Petr Jerman
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @file
 * Header for AHCI driver (SATA/ATA and related things).
 */

#ifndef __AHCI_SATA_H__
#define __AHCI_SATA_H__

#include <stdint.h>

/*----------------------------------------------------------------------------*/
/*-- SATA Buffer Lengths -----------------------------------------------------*/
/*----------------------------------------------------------------------------*/

/** Default sector size in bytes. */
#define SATA_DEFAULT_SECTOR_SIZE  512

/** Size for set feature command buffer in bytes. */
#define SATA_SET_FEATURE_BUFFER_LENGTH  512

/** Size for indentify (packet) device buffer in bytes. */
#define SATA_IDENTIFY_DEVICE_BUFFER_LENGTH  512

/*----------------------------------------------------------------------------*/
/*-- SATA Fis Frames ---------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

/** Sata FIS Type number. */
#define SATA_CMD_FIS_TYPE  0x27

/** Sata FIS Type command indicator. */
#define SATA_CMD_FIS_COMMAND_INDICATOR  0x80

/** Standard Command frame. */
typedef struct {
        /** FIS type - always SATA_CMD_FIS_TYPE. */
        unsigned int fis_type : 8;
        /** Indicate that FIS is a Command - always SATA_CMD_FIS_COMMAND_INDICATOR. */
        unsigned int c : 8;
        /** Command - Identity device - 0xec, Set fetures - 0xef. */
        unsigned int command : 8;
        /** Features - subcommand for set features - set tranfer mode - 0x03. */
        unsigned int features : 8;
        /** 0:23 bits of LBA. */
        unsigned int lba_lower : 24;
        /** Device. */
        unsigned int device : 8;
        /** 24:47 bits of LBA. */
        unsigned int lba_upper : 24;
        /** Features - subcommand for set features - set tranfer mode - 0x03. */
        unsigned int features_upper : 8;
        /** Sector count - transfer mode for set transfer mode operation. */
        unsigned int count : 16;
        /** Reserved. */
        unsigned int reserved1 : 8;
        /** Control. */
        unsigned int control : 8;
        /** Reserved. */
        unsigned int reserved2 : 32;
} sata_std_command_frame_t;

/** Command frame for NCQ data operation. */
typedef struct {
        /** FIS type - always 0x27. */
        uint8_t fis_type;
        /** Indicate that FIS is a Command - always SATA_CMD_FIS_COMMAND_INDICATOR. */
        uint8_t c;
        /** Command - FPDMA Read - 0x60, FPDMA Write - 0x61. */
        uint8_t command;
        /** bits 7:0 of sector count. */
        uint8_t sector_count_low;
        /** bits 7:0 of lba. */
        uint8_t lba0;
        /** bits 15:8 of lba. */
        uint8_t lba1;
        /** bits 23:16 of lba. */
        uint8_t lba2;
        uint8_t fua;
        /** bits 31:24 of lba. */
        uint8_t lba3;
        /** bits 39:32 of lba. */
        uint8_t lba4;
        /** bits 47:40 of lba. */
        uint8_t lba5;
        /** bits 15:8 of sector count. */
        uint8_t sector_count_high;
        /** Tag number of NCQ operation. */
        uint8_t tag;
        /** Reserved. */
        uint8_t reserved1;
        /** Reserved. */
        uint8_t reserved2;
        /** Control. */
        uint8_t control;
        /** Reserved. */
        uint8_t reserved3;
        /** Reserved. */
        uint8_t reserved4;
        /** Reserved. */
        uint8_t reserved5;
        /** Reserved. */
        uint8_t reserved6;
} sata_ncq_command_frame_t;

/*----------------------------------------------------------------------------*/
/*-- SATA Identify device ----------------------------------------------------*/
/*----------------------------------------------------------------------------*/

/** Data returned from identify device and identify packet device command. */
typedef struct {
        uint16_t gen_conf;
        uint16_t cylinders;
        uint16_t reserved2;
        uint16_t heads;
        uint16_t _vs4;
        uint16_t _vs5;
        uint16_t sectors;
        uint16_t _vs7;
        uint16_t _vs8;
        uint16_t _vs9;

        uint16_t serial_number[10];
        uint16_t _vs20;
        uint16_t _vs21;
        uint16_t vs_bytes;
        uint16_t firmware_rev[4];
        uint16_t model_name[20];

        uint16_t max_rw_multiple;
        uint16_t reserved48;
        /* Different meaning for packet device. */
        uint16_t caps;
        uint16_t reserved50;
        uint16_t pio_timing;
        uint16_t dma_timing;

        uint16_t validity;
        uint16_t cur_cyl;
        uint16_t cur_heads;
        uint16_t cur_sectors;
        uint16_t cur_capacity0;
        uint16_t cur_capacity1;
        uint16_t mss;
        uint16_t total_lba28_0;
        uint16_t total_lba28_1;
        uint16_t sw_dma;
        uint16_t mw_dma;
        uint16_t pio_modes;
        uint16_t min_mw_dma_cycle;
        uint16_t rec_mw_dma_cycle;
        uint16_t min_raw_pio_cycle;
        uint16_t min_iordy_pio_cycle;

        uint16_t reserved69;
        uint16_t reserved70;
        uint16_t reserved71;
        uint16_t reserved72;
        uint16_t reserved73;
        uint16_t reserved74;

        uint16_t queue_depth;
        /** SATA capatibilities - different meaning for packet device. */
        uint16_t sata_cap;
        /** SATA additional capatibilities - different meaning for packet device. */
        uint16_t sata_cap2;
        uint16_t reserved78[1 + 79 - 78];
        uint16_t version_maj;
        uint16_t version_min;
        uint16_t cmd_set0;
        uint16_t cmd_set1;
        uint16_t csf_sup_ext;
        uint16_t csf_enabled0;
        uint16_t csf_enabled1;
        uint16_t csf_default;
        uint16_t udma;

        uint16_t reserved89[1 + 99 - 89];

        /* Total number of blocks in LBA-48 addressing. */
        uint16_t total_lba48_0;
        uint16_t total_lba48_1;
        uint16_t total_lba48_2;
        uint16_t total_lba48_3;

        uint16_t reserved104[1 + 105 - 104];
        uint16_t physical_logic_sector_size;
        /* Note: more fields are defined in ATA/ATAPI-7. */
        uint16_t reserved107[1 + 127 - 107];
        uint16_t reserved128[1 + 159 - 128];
        uint16_t reserved160[1 + 255 - 160];
} sata_identify_data_t;

/** Capability bits for register device. */
enum sata_rd_caps {
        sata_rd_cap_iordy = 0x0800,
        sata_rd_cap_iordy_cbd = 0x0400,
        sata_rd_cap_lba = 0x0200,
        sata_rd_cap_dma = 0x0100
};

/** Bits of @c identify_data_t.cmd_set1. */
enum sata_cs1 {
        /** 48-bit address feature set. */
        sata_cs1_addr48 = 0x0400
};

/** SATA capatibilities for not packet device - Serial ATA revision 3_1. */
enum sata_np_caps {
        /** Supports READ LOG DMA EXT. */
        sata_np_cap_log_ext = 0x8000,
        /** Supports Device Automatic Partial to Slumber transitions. */
        sata_np_cap_dev_slm = 0x4000,
        /** Supports Host Automatic Partial to Slumber transitions. */
        sata_np_cap_host_slm = 0x2000,
        /** Supports NCQ priority information. */
        sata_np_cap_ncq_prio = 0x1000,
        /** Supports Unload while NCQ command outstanding. */
        sata_np_cap_unload_ncq = 0x0800,
        /** Supports Phy event counters. */
        sata_np_cap_phy_ctx = 0x0400,
        /** Supports recepits of host-initiated interface power management. */
        sata_np_cap_host_pmngmnt = 0x0200,

        /** Supports NCQ. */
        sata_np_cap_ncq = 0x0100,

        /** Supports SATA 3. */
        sata_np_cap_sata_3 = 0x0008,
        /** Supports SATA 2. */
        sata_np_cap_sata_2 = 0x0004,
        /** Supports SATA 1. */
        sata_np_cap_sata_1 = 0x0002
};

/** SATA capatibilities for packet device - Serial ATA revision 3_1. */
enum sata_pt_caps {
        /** Supports READ LOG DMA EXT. */
        sata_pt_cap_log_ext = 0x8000,
        /** Supports Device Automatic Partial to Slumber transitions. */
        sata_pt_cap_dev_slm = 0x4000,
        /** Supports Host Automatic Partial to Slumber transitions. */
        sata_pt_cap_host_slm = 0x2000,
        /** Supports Phy event counters. */
        sata_pt_cap_phy_ctx = 0x0400,
        /** Supports recepits of host-initiated interface power management. */
        sata_pt_cap_host_pmngmnt = 0x0200,

        /** Supports SATA 3. */
        sata_pt_cap_sat_3 = 0x0008,
        /** Supports SATA 2. */
        sata_pt_cap_sat_2 = 0x0004,
        /** Supports SATA 1. */
        sata_pt_cap_sat_1 = 0x0002
};

#endif