arch/all-pc/hidds/pcipc/pci.h

   1 #ifndef _PCI_H
   2 #define _PCI_H
   3
   4 #include <exec/types.h>
   5 #include <exec/libraries.h>
   6 #include <exec/execbase.h>
   7 #include <exec/nodes.h>
   8 #include <exec/lists.h>
   9
  10 #include <dos/bptr.h>
  11
  12 #include <oop/oop.h>
  13
  14 #include <aros/arossupportbase.h>
  15 #include <exec/execbase.h>
  16
  17 #include <libraries/acpica.h>
  18
  19 #include LC_LIBDEFS_FILE
  20
  21 #ifdef __i386__
  22 /*
  23  * On i386 we can support very old Pentium-1 motherboards with PCI
  24  * configuration mechanism 2.
  25  * x86-64 is much more legacy-free...
  26  */
  27 #define LEGACY_SUPPORT
  28 #endif
  29
  30 struct pci_staticdata
  31 {
  32     OOP_AttrBase   hiddPCIDriverAB;
  33     OOP_AttrBase   hiddAB;
  34
  35     OOP_AttrBase   hidd_PCIDeviceAB;
  36
  37     OOP_Class     *driverClass;
  38
  39     /* Low-level sub-methods */
  40     ULONG        (*ReadConfigLong)(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg);
  41     void         (*WriteConfigLong)(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg, ULONG val);
  42
  43     ACPI_TABLE_MCFG *mcfg_tbl;
  44
  45 };
  46
  47 struct pcibase
  48 {
  49     struct Library          LibNode;
  50     struct pci_staticdata   psd;
  51 };
  52
  53 /* PCI configuration mechanism 1 registers */
  54 #define PCI_AddressPort 0x0cf8
  55 #define PCI_DataPort    0x0cfc
  56
  57 /*
  58  * PCI configuration mechanism 2 registers
  59  * This mechanism is obsolete long ago. But AROS runs on old hardware,
  60  * and we support this.
  61  */
  62 #define PCI_CSEPort     0x0cf8
  63 #define PCI_ForwardPort 0x0cfa
  64
  65 /*
  66  * PCI configuration mechanism selector register.
  67  * Supported by some transition-time chipsets, like Intel Neptune.
  68  */
  69 #define PCI_MechSelect  0x0cfb
  70
  71 #define PCICS_VENDOR    0x00
  72 #define PCICS_PRODUCT   0x02
  73 #define PCICS_SUBCLASS  0x0a
  74
  75 #define PCI_CLASS_BRIDGE_HOST   0x0600
  76 #define PCI_CLASS_DISPLAY_VGA   0x0300
  77
  78 #define PCI_VENDOR_INTEL        0x8086
  79 #define PCI_VENDOR_COMPAQ       0x0e11
  80
  81 #define BASE(lib) ((struct pcibase*)(lib))
  82
  83 #define PSD(cl) (&((struct pcibase*)cl->UserData)->psd)
  84
  85 typedef union _pcicfg
  86 {
  87     ULONG   ul;
  88     UWORD   uw[2];
  89     UBYTE   ub[4];
  90 } pcicfg;
  91
  92 static inline UWORD ReadConfigWord(struct pci_staticdata *psd, UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg)
  93 {
  94     pcicfg temp;
  95
  96     temp.ul = psd->ReadConfigLong(bus, dev, sub, reg);
  97     return temp.uw[(reg&2)>>1];
  98 }
  99
 100 ULONG ReadConfig1Long(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg);
 101 void WriteConfig1Long(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg, ULONG val);
 102
 103 #ifdef LEGACY_SUPPORT
 104
 105 void ProbePCI(struct pci_staticdata *psd);
 106
 107 #else
 108
 109 #define ProbePCI(x)
 110
 111 #endif
 112
 113 #endif /* _PCI_H */