| // 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. |
| |
| #include "qemu-bus.h" |
| |
| #include <assert.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <zircon/threads.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/driver.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/platform/bus.h> |
| #include <fbl/alloc_checker.h> |
| |
| namespace board_qemu_arm64 { |
| |
| static bool use_fake_display() { |
| const char* ufd = getenv("driver.qemu_bus.use_fake_display"); |
| return (ufd != nullptr && (!strcmp(ufd, "1") || !strcmp(ufd, "true") || !strcmp(ufd, "on"))); |
| } |
| |
| int QemuArm64::Thread() { |
| zx_status_t status; |
| zxlogf(INFO, "qemu-bus thread running "); |
| |
| if (use_fake_display()) { |
| status = DisplayInit(); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: DisplayInit() failed %d", __func__, status); |
| return thrd_error; |
| } |
| zxlogf(INFO, "qemu.use_fake_display=1, disabling goldfish-display"); |
| setenv("driver.goldfish-display.disable", "true", 1); |
| } |
| |
| status = PciInit(); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: PciInit() failed %d", __func__, status); |
| return thrd_error; |
| } |
| |
| status = SysmemInit(); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: SysmemInit() failed %d", __func__, status); |
| return thrd_error; |
| } |
| |
| status = PciAdd(); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: PciAdd() failed %d", __func__, status); |
| return thrd_error; |
| } |
| |
| status = RtcInit(); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: RtcInit() failed %d", __func__, status); |
| return thrd_error; |
| } |
| |
| return 0; |
| } |
| |
| zx_status_t QemuArm64::Start() { |
| auto cb = [](void* arg) -> int { return reinterpret_cast<QemuArm64*>(arg)->Thread(); }; |
| int rc = thrd_create_with_name(&thread_, cb, this, "qemu-arm64"); |
| return thrd_status_to_zx_status(rc); |
| } |
| |
| zx_status_t QemuArm64::Create(void* ctx, zx_device_t* parent) { |
| ddk::PBusProtocolClient pbus(parent); |
| if (!pbus.is_valid()) { |
| zxlogf(ERROR, "%s: Failed to get ZX_PROTOCOL_PBUS", __func__); |
| return ZX_ERR_NO_RESOURCES; |
| } |
| |
| fbl::AllocChecker ac; |
| auto board = fbl::make_unique_checked<QemuArm64>(&ac, parent, pbus); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| zx_status_t status; |
| if ((status = board->DdkAdd("qemu-bus", DEVICE_ADD_NON_BINDABLE)) != ZX_OK) { |
| zxlogf(ERROR, "%s: DdkAdd failed %d", __func__, status); |
| return status; |
| } |
| |
| if ((status = board->Start()) != ZX_OK) { |
| return status; |
| } |
| |
| __UNUSED auto* dummy = board.release(); |
| return ZX_OK; |
| } |
| |
| } // namespace board_qemu_arm64 |
| |
| static constexpr zx_driver_ops_t driver_ops = []() { |
| zx_driver_ops_t ops = {}; |
| ops.version = DRIVER_OPS_VERSION; |
| ops.bind = board_qemu_arm64::QemuArm64::Create; |
| return ops; |
| }(); |
| |
| // clang-format off |
| ZIRCON_DRIVER_BEGIN(qemu_bus, driver_ops, "zircon", "0.1", 3) |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_PBUS), |
| BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_QEMU), |
| BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_QEMU), ZIRCON_DRIVER_END(qemu_bus) |
| //clang-format on |