PciAtaController.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of 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.
 */

#ifndef PCI_ATA_CONTROLLER_H
#define PCI_ATA_CONTROLLER_H

#include "AtaController.h"
#include "pedigree/kernel/machine/types.h"
#include "pedigree/kernel/processor/state_forward.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/StaticString.h"
#include "pedigree/kernel/utilities/String.h"

class BusMasterIde;
class Controller;
class IoBase;

#define ATA_CMD_READ 0
#define ATA_CMD_WRITE 1

class PciAtaController : public AtaController
{
  public:
    PciAtaController(Controller *pDev, int nController = 0);
    virtual ~PciAtaController();

    virtual void getName(String &str)
    {
        TinyStaticString s;
        s.clear();
        s += "pci-ata-";
        s.append(m_nController);
        str = String(static_cast<const char *>(s));
    }

    virtual bool sendCommand(
        size_t nUnit, uintptr_t pCommand, uint8_t nCommandSize,
        uintptr_t pRespBuffer, uint16_t nRespBytes, bool bWrite);

    virtual uint64_t executeRequest(
        uint64_t p1, uint64_t p2, uint64_t p3, uint64_t p4, uint64_t p5,
        uint64_t p6, uint64_t p7, uint64_t p8);

    // IRQ handler callback.
    virtual bool irq(irq_id_t number, InterruptState &state);

    IoBase *m_pCommandRegs;
    IoBase *m_pControlRegs;

  private:
    PciAtaController(const PciAtaController &);
    void operator=(const PciAtaController &);

    enum
    {
        UnknownController,
        PIIX,
        PIIX3,
        PIIX4,
        ICH,
        ICH0,
        ICH2,
        ICH3,
        ICH4,
        ICH5
    } m_PciControllerType;

    void diskHelper(
        bool master, IoBase *cmd, IoBase *ctl, BusMasterIde *dma, size_t irq);

  protected:
    int m_nController;
};

#endif