Archipelago » qemu

// PCI 0x04: command(word), 0x06(word): status

#define PCI_COMMAND_IOACCESS                0x0001

#define PCI_COMMAND_MEMACCESS               0x0002

#define PCI_COMMAND_BUSMASTER               0x0004

#define PCI_COMMAND_SPECIALCYCLE            0x0008

#define PCI_COMMAND_MEMWRITEINVALID         0x0010

#define PCI_COMMAND_PALETTESNOOPING         0x0020

#define PCI_COMMAND_PARITYDETECTION         0x0040

#define PCI_COMMAND_ADDRESSDATASTEPPING     0x0080

#define PCI_COMMAND_BACKTOBACKTRANS         0x0200

// PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)

#define PCI_CLASS_BASE_DISPLAY        0x03

// PCI 0x08, 0x00ff0000

#define PCI_CLASS_SUB_VGA             0x00

// PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)

// 0x10-0x3f (headertype 00h)

// PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers

//   0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)

#define PCI_MAP_MEM                 0x0

#define PCI_MAP_IO                  0x1

#define PCI_MAP_MEM_ADDR_MASK       (~0xf)

#define PCI_MAP_IO_ADDR_MASK        (~0x3)

#define PCI_MAP_MEMFLAGS_32BIT      0x0

#define PCI_MAP_MEMFLAGS_32BIT_1M   0x1

#define PCI_MAP_MEMFLAGS_64BIT      0x4

#define PCI_MAP_MEMFLAGS_CACHEABLE  0x8

// PCI 0x28: cardbus CIS pointer

// PCI 0x2c: subsystem vendor id, 0x2e: subsystem id

// PCI 0x30: expansion ROM base address

#define PCI_ROMBIOS_ENABLED         0x1

// PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer

// PCI 0x38: reserved

// PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat

     pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;