1 /* 2 * Copyright 2007, Marcus Overhagen. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _AHCI_CONTROLLER_H 6 #define _AHCI_CONTROLLER_H 7 8 9 #include "ahci_defs.h" 10 #include "ahci_port.h" 11 12 13 class AHCIController { 14 public: 15 AHCIController(device_node *node, 16 pci_device_module_info *pciModule, 17 pci_device *pciDevice); 18 ~AHCIController(); 19 20 status_t Init(); 21 void Uninit(); 22 23 void ExecuteRequest(scsi_ccb *request); 24 uchar AbortRequest(scsi_ccb *request); 25 uchar TerminateRequest(scsi_ccb *request); 26 uchar ResetDevice(uchar targetID, uchar targetLUN); 27 void GetRestrictions(uchar targetID, bool *isATAPI, 28 bool *noAutoSense, uint32 *maxBlocks); 29 30 device_node * DeviceNode() { return fNode; } 31 32 private: 33 bool IsDevicePresent(uint device); 34 status_t ResetController(); 35 void FlushPostedWrites(); 36 37 static int32 Interrupt(void *data); 38 39 friend class AHCIPort; 40 41 private: 42 device_node * fNode; 43 pci_device_module_info *fPCI; 44 pci_device * fPCIDevice; 45 uint16 fPCIVendorID; 46 uint16 fPCIDeviceID; 47 uint32 fFlags; 48 49 volatile ahci_hba * fRegs; 50 area_id fRegsArea; 51 int fCommandSlotCount; 52 int fPortCount; 53 uint32 fPortImplementedMask; 54 uint32 fIRQ; 55 bool fUseMSI; 56 AHCIPort * fPort[32]; 57 58 // --- Instance check workaround begin 59 port_id fInstanceCheck; 60 // --- Instance check workaround end 61 62 }; 63 64 65 inline void 66 AHCIController::FlushPostedWrites() 67 { 68 volatile uint32 dummy = fRegs->ghc; 69 dummy = dummy; 70 } 71 72 #endif // _AHCI_CONTROLLER_H 73