private ACPIInterrupt AllocateIRQ(int irq, bool sharable, bool active_low, bool level_trigger)
{
if (isa_irqs[irq] == null)
{
return(null);
}
ACPIInterrupt irq_int = isa_irqs[irq];
irq_int.is_level_trigger = level_trigger;
irq_int.is_low_active = active_low;
if (sharable == false)
{
isa_irqs[irq] = null;
}
return(irq_int);
}
public void InterpretResources(ACPIObject resources, List <File.Property> props)
{
/* The value of _CRS should be a Buffer, i.e. an array of type byte[] */
if (resources.Type != ACPIObject.DataType.Buffer)
{
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: WARNING: " +
"_CRS output is not of type Package, but rather of type " +
resources.Type.ToString());
return;
}
byte[] rs = resources.Data as byte[];
if (rs == null)
{
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: WARNING: " +
"_CRS output data is not of type byte[]");
return;
}
int idx = 0;
while (idx < rs.Length)
{
byte tag = rs[idx];
if ((tag & 0x80) == 0)
{
/* Small resource */
int len = tag & 0x7;
int type = (tag >> 3) & 0xf;
//System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small resource: type: " + type.ToString() + ", len: " + len.ToString());
switch (type)
{
case 0:
case 1:
case 2:
case 3:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small reserved item");
throw new NotSupportedException();
case 4:
//System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small irq format item");
{
uint irq_mask_1 = rs[idx + 1];
uint irq_mask_2 = rs[idx + 2];
uint flags = 0x1; // active high edge triggered
if (len == 3)
{
flags = rs[idx + 3];
}
bool sharable = ((flags & 0x10) != 0);
bool active_low = ((flags & 0x08) != 0);
bool level_trigger = ((flags & 0x1) == 0);
for (int i = 0; i < 8; i++)
{
if ((irq_mask_1 & 0x1) != 0)
{
ACPIInterrupt irq = AllocateIRQ(i, sharable, active_low, level_trigger);
if (irq != null)
{
props.Add(new File.Property {
Name = "interrupt", Value = irq
});
}
}
irq_mask_1 >>= 1;
}
for (int i = 0; i < 8; i++)
{
if ((irq_mask_2 & 0x1) != 0)
{
ACPIInterrupt irq = AllocateIRQ(i + 8, sharable, active_low, level_trigger);
if (irq != null)
{
props.Add(new File.Property {
Name = "interrupt", Value = irq
});
}
}
irq_mask_2 >>= 1;
}
}
break;
case 5:
//System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small dma format item");
{
uint dma_mask = rs[idx + 1];
for (int i = 0; i < 8; i++)
{
if ((dma_mask & 0x1) != 0)
{
props.Add(new File.Property {
Name = "dma", Value = i
});
}
dma_mask >>= 1;
}
}
break;
case 6:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small start dependent functions item");
throw new NotImplementedException();
case 7:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small end dependent functions item");
throw new NotImplementedException();
case 8:
//System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small io port descriptor item");
{
uint io_base = rs[idx + 2];
io_base |= (uint)rs[idx + 3] << 8;
uint io_len = rs[idx + 7];
props.Add(new File.Property {
Name = "io", Value = ios.AllocFixed(io_base, io_len, true)
});
}
break;
case 9:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small fixed location io port descriptor item");
throw new NotImplementedException();
case 0xa:
case 0xb:
case 0xc:
case 0xd:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small reserved item");
throw new NotSupportedException();
case 0xe:
System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: small vendor defined descriptor item");
throw new NotImplementedException();
}
if (type == 0xf)
{
break;
}
idx++;
idx += len;
}
else
{
uint type = tag & 0x7fU;
uint len = rs[idx + 1];
len |= (uint)rs[idx + 2] << 8;
//System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: large resource: type: " + type.ToString() + ", len: " + len.ToString());
switch (type)
{
case 0x6:
{
ulong min = BitConverter.ToUInt32(rs, idx + 4);
ulong length = BitConverter.ToUInt32(rs, idx + 8);
props.Add(new File.Property {
Name = "pmem", Value = pmems.AllocFixed(min, length, true)
});
}
break;
case 0x7:
case 0x8:
case 0xa:
{
int res_type = rs[idx + 3];
int gen_flags = rs[idx + 4];
int spec_flags = rs[idx + 5];
ulong gran = 0;
ulong min = 0;
ulong max = 0;
ulong tran = 0;
ulong length = 0;
switch (type)
{
case 0x7:
gran = BitConverter.ToUInt32(rs, idx + 6);
min = BitConverter.ToUInt32(rs, idx + 10);
max = BitConverter.ToUInt32(rs, idx + 14);
tran = BitConverter.ToUInt32(rs, idx + 18);
length = BitConverter.ToUInt32(rs, idx + 22);
break;
case 0x8:
gran = BitConverter.ToUInt16(rs, idx + 6);
min = BitConverter.ToUInt16(rs, idx + 8);
max = BitConverter.ToUInt16(rs, idx + 10);
tran = BitConverter.ToUInt16(rs, idx + 12);
length = BitConverter.ToUInt16(rs, idx + 14);
break;
case 0xa:
gran = BitConverter.ToUInt64(rs, idx + 6);
min = BitConverter.ToUInt64(rs, idx + 14);
max = BitConverter.ToUInt64(rs, idx + 22);
tran = BitConverter.ToUInt64(rs, idx + 30);
length = BitConverter.ToUInt64(rs, idx + 38);
break;
}
/*System.Diagnostics.Debugger.Log(0, "acpipc", "InterpretResources: large resource: res_type: " +
* res_type.ToString("X8") + ", gen_flags: " + gen_flags.ToString("X8") +
* ", spec_flags: " + spec_flags.ToString("X8") +
* ", gran: " + gran.ToString("X16") +
* ", min: " + min.ToString("X16") +
* ", max: " + max.ToString("X16") +
* ", tran: " + tran.ToString("X16") +
* ", length: " + length.ToString("X16"));*/
switch (res_type)
{
case 0:
props.Add(new File.Property {
Name = "pmem", Value = pmems.AllocFixed(min, length, true)
});
break;
case 1:
props.Add(new File.Property {
Name = "io", Value = ios.AllocFixed((uint)min, (uint)length, true)
});
break;
}
}
break;
default:
throw new NotImplementedException("large descriptor type " + type.ToString());
}
idx += 3;
idx += (int)len;
}
}
}
public IDictionary <int, ACPIInterrupt[]> GetPRT()
{
var prt = EvaluateObject("_PRT");
if (prt == null || prt.Type != ACPIObject.DataType.Package)
{
return(null);
}
Dictionary <int, ACPIInterrupt[]> prts = new Dictionary <int, ACPIInterrupt[]>(
new tysos.Program.MyGenericEqualityComparer <int>());
foreach (var prtentry in (ACPIObject[])prt.Data)
{
if (prtentry.Type == ACPIObject.DataType.Package)
{
var prtobj = prtentry.Data as ACPIObject[];
int dev = (int)prtobj[0].IntegerData;
if (!prts.ContainsKey(dev))
{
prts[dev] = new ACPIInterrupt[4];
}
int pin = (int)prtobj[1].IntegerData;
/*StringBuilder sb = new StringBuilder();
* sb.Append("_PRT: ");
* for (int i = 0; i < prtobj.Length; i++)
* {
* if (i != 0)
* sb.Append(", ");
* sb.Append(i.ToString());
* sb.Append(": ");
* sb.Append(prtobj[i].Type.ToString());
* sb.Append(": ");
* sb.Append(prtobj[i].Data.ToString());
* }
* System.Diagnostics.Debugger.Log(0, "pci", sb.ToString());
*
* System.Diagnostics.Debugger.Log(0, "pci", "PRT: dev: " + dev.ToString() + ", pin: " + pin.ToString() + ", source.Type: " + prtobj[2].Type.ToString() + ", sourceIndex: " + prtobj[3].IntegerData.ToString());*/
if (prtobj[2].Type == ACPIObject.DataType.ObjectReference)
{
ACPIObject.ObjRefData ord = prtobj[2].Data as
ACPIObject.ObjRefData;
System.Diagnostics.Debugger.Log(0, "pci", ord.Object.Name);
var crs = acpi.n.Evaluate(ord.Object.Name + "._CRS", acpi.mi);
List <File.Property> props = new List <File.Property>();
acpi.InterpretResources(crs, props);
if (props.Count == 1)
{
prts[dev][pin] = props[0].Value as ACPIInterrupt;
}
}
else if (prtobj[2].Type == ACPIObject.DataType.Integer &&
prtobj[2].IntegerData == 0)
{
int gsi = (int)prtobj[3].IntegerData;
prts[dev][pin] = acpi.GeneratePCIIRQ(gsi);
}
}
}
return(prts);
}
