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.
118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/*
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* Copyright (c) 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/ahci/port.h
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* Driver for the Advanced Host Controller Interface.
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*/
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#ifndef SORTIX_DISK_AHCI_PORT_H
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#define SORTIX_DISK_AHCI_PORT_H
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#include <sys/types.h>
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#include <endian.h>
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#include <stdint.h>
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#include <sortix/kernel/addralloc.h>
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#include <sortix/kernel/harddisk.h>
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#include <sortix/kernel/ioctx.h>
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#include <sortix/kernel/kthread.h>
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namespace Sortix {
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namespace AHCI {
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struct command_header;
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struct command_table;
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struct fis;
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struct port_regs;
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struct prd;
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class HBA;
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class Port : public Harddisk
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{
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public:
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Port(HBA* hba, uint32_t port_index);
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virtual ~Port();
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public:
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virtual off_t GetSize();
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virtual blkcnt_t GetBlockCount();
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virtual blksize_t GetBlockSize();
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virtual uint16_t GetCylinderCount();
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virtual uint16_t GetHeadCount();
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virtual uint16_t GetSectorCount();
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virtual const char* GetDriver();
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virtual const char* GetModel();
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virtual const char* GetSerial();
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virtual const char* GetRevision();
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virtual const unsigned char* GetATAIdentify(size_t* size_ptr);
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virtual int sync(ioctx_t* ctx);
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virtual ssize_t pread(ioctx_t* ctx, unsigned char* buf, size_t count, off_t off);
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virtual ssize_t pwrite(ioctx_t* ctx, const unsigned char* buf, size_t count, off_t off);
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public:
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bool Initialize();
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bool FinishInitialize();
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void OnInterrupt();
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private:
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__attribute__((format(printf, 2, 3)))
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void LogF(const char* format, ...);
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bool Reset();
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void Seek(blkcnt_t block_index, size_t count);
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void CommandDMA(uint8_t cmd, size_t size, bool write);
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bool FinishTransferDMA();
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void PrepareAwaitInterrupt();
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bool AwaitInterrupt(unsigned int msescs);
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private:
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kthread_mutex_t port_lock;
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unsigned char identify_data[512];
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char serial[20 + 1];
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char revision[8 + 1];
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char model[40 + 1];
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addralloc_t control_alloc;
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addralloc_t dma_alloc;
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HBA* hba;
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volatile struct port_regs* regs;
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volatile struct command_header* clist;
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volatile struct fis* fis;
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volatile struct command_table* ctbl;
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volatile struct prd* prdt;
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addr_t control_physical_frame;
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addr_t dma_physical_frame;
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uint32_t port_index;
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bool is_control_page_mapped;
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bool is_dma_page_mapped;
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bool is_lba48;
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off_t device_size;
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blksize_t block_count;
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blkcnt_t block_size;
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uint16_t cylinder_count;
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uint16_t head_count;
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uint16_t sector_count;
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volatile bool interrupt_signaled;
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bool transfer_in_progress;
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size_t transfer_size;
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bool transfer_is_write;
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};
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} // namespace AHCI
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} // namespace Sortix
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#endif
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