forked from KolibriOS/kolibrios
117 lines
3.2 KiB
C++
117 lines
3.2 KiB
C++
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#define PCI_CLASS_BRIDGE_HOST 0x06
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#define INTEL_82443LX_0 (0x7180<<16)|0x8086
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#define INTEL_82443BX_0 (0x7190<<16)|0x8086
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#define INTEL_82443GX_0 (0x71a0<<16)|0x8086
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#define INTEL_82810_MC1 (0x7120<<16)|0x8086
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#define INTEL_82810_MC3 (0x7122<<16)|0x8086
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#define INTEL_82810E_MC (0x7124<<16)|0x8086
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#define INTEL_82815_MC (0x1130<<16)|0x8086
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#define INTEL_82820_HB (0x2500<<16)|0x8086
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#define INTEL_82820_UP_HB (0x2501<<16)|0x8086
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#define INTEL_82830_HB (0x3575<<16)|0x8086
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#define INTEL_82840_HB (0x1a21<<16)|0x8086
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#define INTEL_82845_HB (0x1a30<<16)|0x8086
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#define INTEL_82845G_HB (0x2560<<16)|0x8086
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#define INTEL_82850_HB (0x2530<<16)|0x8086
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#define INTEL_82855PM_HB (0x3340<<16)|0x8086
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#define INTEL_82855GM_HB (0x3580<<16)|0x8086
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#define INTEL_82860_HB (0x2531<<16)|0x8086
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#define INTEL_82865_HB (0x2570<<16)|0x8086
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#define INTEL_82875_HB (0x2578<<16)|0x8086
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#define INTEL_7505_0 (0x2550<<16)|0x8086
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#define INTEL_7205_0 (0x255d<<16)|0x8086
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#define INTEL_82915G_HB (0x2580<<16)|0x8086
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#define INTEL_82915GM_HB (0x2590<<16)|0x8086
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#define INTEL_82945G_HB (0x2770<<16)|0x8086
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#define INTEL_82945GM_HB (0x27A0<<16)|0x8086
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typedef struct
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{
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int id;
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int driver;
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}pci_device_t;
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static pci_device_t agp_dev_table[] = {
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// { INTEL_82443LX_0, 0 },
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// { INTEL_82443BX_0, 0 },
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// { INTEL_82443GX_0, 0 },
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// { INTEL_82810_MC1, 0 },
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// { INTEL_82810_MC3, 0 },
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// { INTEL_82810E_MC, 0 },
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// { INTEL_82815_MC, 0 },
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// { INTEL_82820_HB, 0 },
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// { INTEL_82820_UP_HB,0 },
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// { INTEL_82830_HB, 0 },
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// { INTEL_82840_HB, 0 },
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// { INTEL_82845_HB, 0 },
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// { INTEL_82845G_HB, 0 },
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// { INTEL_82850_HB, 0 },
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// { INTEL_82855PM_HB, 0 },
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// { INTEL_82855GM_HB, 0 },
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// { INTEL_82860_HB, 0 },
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{ INTEL_82865_HB, 0 },
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// { INTEL_82875_HB, 0 },
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// { INTEL_7505_0, 0 },
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// { INTEL_7205_0, 0 },
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// { INTEL_82915G_HB, 0 },
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// { INTEL_82915GM_HB, 0 },
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// { INTEL_82945G_HB, 0 },
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// { INTEL_82945GM_HB, 0 },
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{ 0, 0 }
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};
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pci_device_t* agp_dev_match(u32_t dev, pci_device_t *list)
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{
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while(list->id)
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{
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if(dev == list->id)
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return list;
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list++;
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}
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return NULL;
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}
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int FindPciDevice()
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{
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u32_t bus, last_bus;
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PCITAG tag;
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if( (last_bus = PciApi(1))==-1)
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return 0;
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for(bus=0;bus<=last_bus;bus++)
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{
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u32_t devfn;
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for(devfn=0;devfn<256;devfn++)
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{
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u32_t pciId;
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u8_t devclass;
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pci_device_t *dev;
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pciId = PciRead32(bus,devfn, 0);
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devclass = PciRead8(bus,devfn, 0x0B);
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if( devclass != PCI_CLASS_BRIDGE_HOST)
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continue;
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if( (dev = agp_dev_match(pciId, agp_dev_table))!=NULL)
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{
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dbgprintf("detect agp host %x\n",dev->id);
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PCITAG PciTag = pciTag(bus,(devfn>>3)&0x1F,devfn&0x7);
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return init_bridge(PciTag);
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};
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};
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};
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return 0;
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};
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