diff options
Diffstat (limited to 'dev/uart8250.cc')
| -rw-r--r-- | dev/uart8250.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/dev/uart8250.cc b/dev/uart8250.cc index 99e3bd017..63756042a 100644 --- a/dev/uart8250.cc +++ b/dev/uart8250.cc @@ -88,7 +88,7 @@ Uart8250::IntrEvent::process() void Uart8250::IntrEvent::scheduleIntr() { - static const Tick interval = (Tick)((Clock::Float::s / 2e9) * 450); + static const Tick interval = (Tick)((Clock::Float::s / 2e9) * 600); DPRINTF(Uart, "Scheduling IER interrupt for %#x, at cycle %lld\n", intrBit, curTick + interval); if (!scheduled()) @@ -146,10 +146,11 @@ Uart8250::read(MemReqPtr &req, uint8_t *data) break; case 0x2: // Intr Identification Register (IIR) DPRINTF(Uart, "IIR Read, status = %#x\n", (uint32_t)status); - if (status) - *(uint8_t*)data = 0; + status &= ~TX_INT; + if (status & RX_INT) + *(uint8_t*)data = 0x4; else - *(uint8_t*)data = 1; + *(uint8_t*)data = 0x1; break; case 0x3: // Line Control Register (LCR) *(uint8_t*)data = LCR; |