| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include <hypervisor/io.h> |
| |
| class Guest; |
| |
| // Implements the PL011 UART. |
| class Pl011 : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest, uint64_t addr); |
| |
| // IoHandler interface. |
| zx_status_t Read(uint64_t addr, IoValue* io) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& io) override; |
| |
| private: |
| static const size_t kBufferSize = 128; |
| |
| uint8_t tx_buffer_[kBufferSize] = {}; |
| uint16_t tx_offset_ = 0; |
| |
| void Print(uint8_t ch); |
| }; |
| |
| using Uart = Pl011; |
