KernelLand/Modules/Storage/AHCI/ahci.h

   1 /*
   2  * Acess2 Kernel - AHCI Driver
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * ahci.h
   6  * - Driver header
   7  */
   8 #ifndef _AHCI__AHCI_H_
   9 #define _AHCI__AHCI_H_
  10
  11 #define AHCI_CAP_S64A   (1 << 31)       // Supports 64-bit addressing
  12 #define AHCI_CAP_SNCQ   (1 << 30)       // Supports Native Command Queuing
  13 #define AHCI_CAP_SXS    (1 << 5)        // Support External SATA
  14
  15 struct sAHCI_MemSpace
  16 {
  17         Uint32  CAP;    // Host Capabilities
  18         Uint32  GHC;    // Global Host Control;
  19         Uint16  IS;     // Interrupt Status
  20         Uint16  PI;     // Ports Implemented
  21         Uint32  VS;     // Version
  22         Uint32  CCC_CTL;        // Command Completion Coalsecing Control
  23         Uint16  CCC_PORTS;      // Command Completion Coalsecing Ports
  24         Uint32  EM_LOC; // Enclosure Management Location
  25         Uint32  CAP2;   // Host Capabilities Extended
  26         Uint16  BOHC;   // BIOS/OS Handoff Control and Status
  27
  28         Uint16  _padding[(0x100-0x2C)/2];
  29
  30         struct s_port
  31         {
  32                 Uint32  PxCLB;  // Command List Base Address
  33                 Uint32  PxCLBU; // (High of above)
  34                 Uint32  PxFB;   // FIS Base Address
  35                 Uint32  PxFBU;  // (high of above)
  36                 Uint32  PxIS;   // Interrupt Status
  37                 Uint32  PxIE;   // Interrupt Enable
  38                 Uint32  PxCMD;  // Command and Status
  39                 Uint32  _resvd;
  40                 Uint32  PxTFD;  // Task File Data
  41                 Uint32  PxSIG;  // Signature
  42                 Uint32  PxSSTS; // Serial ATA Status
  43                 Uint32  PxSCTL; // Serial ATA Control
  44                 Uint32  PxSERR; // Serial ATA Error
  45                 Uint32  PxSACT; // Serial ATA Active
  46                 Uint32  PxCI;   // Command Issue
  47                 Uint32  PxSNTF; // Serial ATA Notification
  48                 Uint32  PxFBS;  // FIS-based Switching Control
  49                 Uint32  _resvd2[(0x70-0x44)/4];
  50                 Uint32  PxVS[4];
  51         }       Ports[32];
  52 };
  53
  54 #endif
  55