mirror of https://github.com/wolfSSL/wolfBoot.git
113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
/* ata.h
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*
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* Copyright (C) 2023 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef ATA_H
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#define ATA_H
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#include <stdint.h>
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struct __attribute__((packed)) hba_cmd_header {
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uint8_t cfl:5, a:1, w:1, p:1;
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uint8_t r:1, b:1, c:1, _res0:1, pmp:4;
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uint16_t prdtl;
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volatile uint32_t prbdc;
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uint32_t ctba;
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uint32_t ctbau;
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uint32_t _res1[4];
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};
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int ata_drive_new(uint32_t ahci_base, unsigned ahci_port, uint32_t clb, uint32_t ctable, uint32_t fis);
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int ata_drive_read(int drv, uint64_t start, uint32_t count, uint8_t *buf);
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int ata_drive_write(int drv, uint64_t start, uint32_t count,
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const uint8_t *buf);
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int ata_identify_device(int drv);
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int ata_security_erase_prepare(int drv);
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int ata_security_erase_unit(int drv, const char *passphrase, int master);
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int ata_security_set_password(int drv, int master, const char *passphrase);
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int ata_security_disable_password(int drv, const char *passphrase, int master);
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int ata_device_config_identify(int drv);
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int ata_security_freeze_lock(int drv);
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int ata_security_unlock_device(int drv, const char *passphrase, int master);
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int ata_cmd_complete_async();
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/* @brief Enum with the possible state for each drive.
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* See ATA/ATAPI Command Set (ATA8-ACS) section 4.7.4
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*/
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enum ata_security_state {
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ATA_SEC0 = 0, /* SEC0: Powered down/Security disabled */
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ATA_SEC1, /* SEC1: Security disabled/not Frozen */
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ATA_SEC2, /* SEC2: Security disabled/Frozen */
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_ATA_POFF3, /* SEC3: Powered down/Security enabled */
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ATA_SEC4, /* SEC4: Security enabled/Locked */
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ATA_SEC5, /* SEC5: Unlocked/not Frozen */
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ATA_SEC6 /* SEC6: Unlocked/ Frozen */
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};
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enum ata_security_state ata_security_get_state(int);
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#define ATA_DEV_BUSY (1 << 7)
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#define ATA_DEV_DRQ (1 << 3)
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/* FIS types */
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#define FIS_TYPE_REG_H2D 0x27
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#define FIS_TYPE_REG_D2H 0x34
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#define FIS_TYPE_DMA_ACT 0x39
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#define FIS_TYPE_DMA_SETUP 0x41
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#define FIS_TYPE_DATA 0x46
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#define FIS_TYPE_BIST 0x58
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#define FIS_TYPE_PIO_SETUP 0x5F
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#define FIS_TYPE_DEV_BITS 0xA1
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#define FIS_LEN_H2D 20
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#define FIS_H2D_CMD (1 << 7)
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/* ATA commands */
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#define ATA_CMD_READ_DMA_EX 0x25
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#define ATA_CMD_WRITE_DMA_EX 0x35
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#define ATA_CMD_DEVICE_CONFIGURATION_IDENTIFY 0xB1
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#define ATA_CMD_WRITE_DMA 0xCA
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#define ATA_CMD_IDENTIFY_DEVICE 0xEC
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#define ATA_IDENTIFY_DEVICE_COMMAND_LEN (256 * 2)
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/* Security feature set */
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#define ATA_CMD_SECURITY_SET_PASSWORD 0xF1
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#define ATA_CMD_SECURITY_UNLOCK 0xF2
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#define ATA_CMD_SECURITY_ERASE_PREPARE 0xF3
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#define ATA_CMD_SECURITY_ERASE_UNIT 0xF4
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#define ATA_CMD_SECURITY_FREEZE_LOCK 0xF5
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#define ATA_CMD_SECURITY_DISABLE_PASSWORD 0xF6
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/* Constants for security set commands */
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#define ATA_SECURITY_COMMAND_LEN (256 * 2)
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#define ATA_SECURITY_PASSWORD_OFFSET (1 * 2)
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#define ATA_ERR_BUSY -2
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#define ATA_ERR_OP_IN_PROGRESS -3
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#define ATA_ERR_OP_NOT_IN_PROGRESS -4
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#endif
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