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code runs until ohci_lowlevel_init() but can't continue since pci_get_resource() is not implemented yet

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This commit is contained in:
Markus Fröschle
2013-11-03 11:20:39 +00:00
parent 459722216f
commit f36016f12d
11 changed files with 129 additions and 52 deletions
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15
BaS_gcc/sources/pci.c
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@@ -164,7 +164,7 @@ struct resource_descriptor *pci_get_resource(uint16_t handle)
return (struct resource_descriptor *) 0L;
}
uint16_t pci_find_device(uint16_t device_id, uint16_t vendor_id, int index)
int16_t pci_find_device(uint16_t device_id, uint16_t vendor_id, int index)
{
uint16_t bus;
uint16_t slot;
@@ -184,16 +184,23 @@ uint16_t pci_find_device(uint16_t device_id, uint16_t vendor_id, int index)
value = pci_read_config_longword(handle, 0);
if (value != 0xffffffff) /* we have a device at this position */
{
if (vendor_id == 0xffff) /* ignore vendor id */
if (vendor_id == 0xffff && pos == index) /* ignore device id */
{
return handle;
}
else if (PCI_VENDOR_ID(value) == vendor_id && PCI_DEVICE_ID(value) == device_id)
else
{
/* we found a match, but at wrong position */
pos++;
continue;
}
if (PCI_VENDOR_ID(value) == vendor_id && PCI_DEVICE_ID(value) == device_id)
{
if (pos == index)
return handle;
pos++;
}
else
pos++;
}
}
}