uint capabilities; // bits 0-31 at offset 0
internal Hpet(PnpConfig config)
{
int cpuId;
Microsoft.Singularity.Hal.Platform p = Microsoft.Singularity.Hal.Platform.ThePlatform;
cpuId = p.ApicId;
this.config = config;
IoMemoryRange imr = (IoMemoryRange)config.DynamicRanges[0];
this.region = imr.MemoryAtOffset(0, (int)imr.Length.ToUInt32(),
Access.ReadWrite);
capabilities = region.Read32(0x00);
periodFs = region.Read32(0x04);
if (cpuId == 0)
{
DebugStub.Print("new Hpet writing regions\n");
// Disable interrupts on timers
for (uint i = 0; i <= MaxCounterIndex; i++)
{
DisableInterrupt(i);
}
uint gc = region.Read32(0x10) & ~3u; // Clear legacy bits
region.Write32(0x10, gc | 1); // Enable main counter
}
}
private uint irqMask2; // copy of interrupt mask
internal Pic(PnpConfig config)
{
PicResources pr = new PicResources(config);
IoMemoryRange range = pr.registers;
IoMemory regs = range.MemoryAtOffset(0, PicRegisterSize, Access.ReadWrite);
intcps_revision = regs.MappedPortAtOffset(INTCPS_REVISION, 4, Access.Read);
intcps_sysconfig = regs.MappedPortAtOffset(INTCPS_SYSCONFIG, 4, Access.ReadWrite);
intcps_sysstatus = regs.MappedPortAtOffset(INTCPS_SYSSTATUS, 4, Access.Read);
intcps_sir_irq = regs.MappedPortAtOffset(INTCPS_SIR_IRQ, 4, Access.Read);
intcps_sir_fiq = regs.MappedPortAtOffset(INTCPS_SIR_FIQ, 4, Access.Read);
intcps_control = regs.MappedPortAtOffset(INTCPS_CONTROL, 4, Access.ReadWrite);
intcps_protection = regs.MappedPortAtOffset(INTCPS_PROTECTION, 4, Access.ReadWrite);
intcps_idle = regs.MappedPortAtOffset(INTCPS_IDLE, 4, Access.ReadWrite);
intcps_irq_priority = regs.MappedPortAtOffset(INTCPS_IRQ_PRIORITY, 4, Access.ReadWrite);
intcps_fiq_priority = regs.MappedPortAtOffset(INTCPS_FIQ_PRIORITY, 4, Access.ReadWrite);
intcps_threshhold = regs.MappedPortAtOffset(INTCPS_THRESHHOLD, 4, Access.ReadWrite);
intcps_itr = CreatePortVector(regs, INTCPS_ITR, Access.Read);
intcps_mir = CreatePortVector(regs, INTCPS_MIR, Access.ReadWrite);
intcps_mir_clear = CreatePortVector(regs, INTCPS_MIR_CLEAR, Access.Write);
intcps_mir_set = CreatePortVector(regs, INTCPS_MIR_SET, Access.Write);
intcps_isr_set = CreatePortVector(regs, INTCPS_ISR_SET, Access.ReadWrite);
intcps_isr_clear = CreatePortVector(regs, INTCPS_ISR_CLEAR, Access.Write);
intcps_pending_irq = CreatePortVector(regs, INTCPS_PENDING_IRQ, Access.Read);
intcps_pending_fiq = CreatePortVector(regs, INTCPS_PENDING_FIQ, Access.Read);
intcps_ilr = regs.MappedPortAtOffset(
INTCPS_ILR_Base,
INTCPS_ILR_Offset * INTCPS_Vectors,
Access.ReadWrite
);
}
