2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* disk/ata/registers.h
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* Driver for ATA.
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*/
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#ifndef SORTIX_DISK_ATA_REGISTERS_H
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#define SORTIX_DISK_ATA_REGISTERS_H
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#include <endian.h>
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#include <stdint.h>
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namespace Sortix {
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namespace ATA {
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struct prd
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{
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little_uint32_t physical;
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little_uint16_t count;
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little_uint16_t flags;
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};
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static const uint16_t PRD_FLAG_EOT = 1 << 15;
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static const uint16_t REG_DATA = 0x0;
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static const uint16_t REG_FEATURE = 0x1;
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static const uint16_t REG_ERROR = 0x1;
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static const uint16_t REG_SECTOR_COUNT = 0x2;
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static const uint16_t REG_LBA_LOW = 0x3;
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static const uint16_t REG_LBA_MID = 0x4;
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static const uint16_t REG_LBA_HIGH = 0x5;
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static const uint16_t REG_DRIVE_SELECT = 0x6;
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static const uint16_t REG_COMMAND = 0x7;
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static const uint16_t REG_STATUS = 0x7;
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static const uint8_t CMD_READ = 0x20;
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static const uint8_t CMD_READ_EXT = 0x24;
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static const uint8_t CMD_READ_DMA = 0xC8;
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static const uint8_t CMD_READ_DMA_EXT = 0x25;
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static const uint8_t CMD_WRITE = 0x30;
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static const uint8_t CMD_WRITE_EXT = 0x34;
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static const uint8_t CMD_WRITE_DMA = 0xCA;
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static const uint8_t CMD_WRITE_DMA_EXT = 0x35;
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static const uint8_t CMD_FLUSH_CACHE = 0xE7;
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static const uint8_t CMD_FLUSH_CACHE_EXT = 0xEA;
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static const uint8_t CMD_IDENTIFY = 0xEC;
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static const uint8_t STATUS_ERROR = 1 << 0;
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static const uint8_t STATUS_DATAREADY = 1 << 3;
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static const uint8_t STATUS_DRIVEFAULT = 1 << 5;
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static const uint8_t STATUS_BUSY = 1 << 7;
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static const uint16_t BUSMASTER_REG_COMMAND = 0x0;
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static const uint16_t BUSMASTER_REG_STATUS = 0x2;
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static const uint16_t BUSMASTER_REG_PDRT = 0x4;
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static const uint16_t BUSMASTER_COMMAND_START = 1 << 0;
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static const uint16_t BUSMASTER_COMMAND_READING = 1 << 3;
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static const uint8_t BUSMASTER_STATUS_DMA = 1 << 0;
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static const uint8_t BUSMASTER_STATUS_DMA_FAILURE = 1 << 1;
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static const uint8_t BUSMASTER_STATUS_INTERRUPT_PENDING = 1 << 2;
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static const uint8_t BUSMASTER_STATUS_MASTER_DMA_INIT = 1 << 5;
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static const uint8_t BUSMASTER_STATUS_SLAVE_DMA_INIT = 1 << 6;
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static const uint8_t BUSMASTER_STATUS_SIMPLEX = 1 << 7;
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} // namespace ATA
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} // namespace Sortix
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#endif
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