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 "pedigree/kernel/machine/types.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/StaticString.h"
#include "pedigree/kernel/utilities/String.h"
 
#include "AtaController.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 shutdown();
 
  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 IrqDisposition irq(irq_id_t number);
 
  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;
 
  irq_id_t m_IrqIds[3];
  size_t m_IrqCount;
 
  void diskHelper(bool master, IoBase* cmd, IoBase* ctl, BusMasterIde* dma, size_t irq);
 
 protected:
  virtual bool workerPlacement(ThreadPlacement& placement) const;
 
  int m_nController;
};
 
#endif