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Dump xHCI extended capabilities

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This commit is contained in:
Josh Holtrop 2023-09-19 11:07:18 -04:00
parent 14bb3adf37
commit 4814b51daf
1 changed files with 41 additions and 0 deletions
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41
src/hulk/usb/xhci.d
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@ -177,6 +177,47 @@ struct XHCI
m_port_registers = cast(PortRegisters *)(cast(void *)m_operational_registers + 0x400);
m_runtime_registers = cast(RuntimeRegisters *)(base_address + m_capability_registers.rts_offset);
m_doorbell_registers = cast(DoorbellRegister *)(base_address + m_capability_registers.doorbell_offset);
dump_extended_capabilities();
}
private void dump_extended_capabilities()
{
size_t ext_cap_off = (m_capability_registers.hcc_params1 >> 16u);
if (ext_cap_off != 0u)
{
Klog.writefln("Extended capabilities:");
uint * extended_capabilities = cast(uint *)m_capability_registers + ext_cap_off;
for (;;)
{
uint ec0 = extended_capabilities[0];
size_t next_offset = (ec0 >> 8u) & 0xFFu;
size_t len = next_offset;
if (len < 1u)
{
len = 1u;
}
ubyte type = ec0 & 0xFFu;
if (type == 2u)
{
len = 4u;
}
for (size_t i = 0u; i < len; i++)
{
uint ecv = extended_capabilities[i];
Klog.writef(" %02X %02X %02X %02X",
ecv & 0xFFu,
(ecv >> 8u) & 0xFFu,
(ecv >> 16u) & 0xFFu,
(ecv >> 24u) & 0xFFu);
}
Klog.writef("\n");
if (next_offset == 0u)
{
break;
}
extended_capabilities += next_offset;
}
}
}
static void build(Pci.Device * pci_device)