drivers/wlan/testing/driver.cpp

// Copyright 2018 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 "driver.h"

#include "phy-device.h"

#include <ddk/debug.h>
#include <ddk/device.h>
#include <ddk/driver.h>
#include <ddk/protocol/test.h>
#include <lib/async-loop/cpp/loop.h>

#include <memory>

// Not guarded by a mutex, because it will be valid between .init and .release and nothing else will
// exist outside those two calls.
static async::Loop* loop = nullptr;

extern "C" zx_status_t wlanphy_test_init(void** out_ctx) {
    zxlogf(INFO, "%s\n", __func__);
    loop = new async::Loop;
    zx_status_t status = loop->StartThread("wlan-test-loop");
    if (status != ZX_OK) {
        zxlogf(ERROR, "wlanphy_test: could not create event loop: %d\n", status);
        delete loop;
        loop = nullptr;
    }
    zxlogf(INFO, "wlanphy_test: event loop started\n");
    return status;
}

extern "C" zx_status_t wlanphy_test_bind(void* ctx, zx_device_t* device) {
    zxlogf(INFO, "%s\n", __func__);

    test_protocol_t proto;
    auto status = device_get_protocol(device, ZX_PROTOCOL_TEST, reinterpret_cast<void*>(&proto));
    if (status != ZX_OK) { return status; }

    auto dev = std::make_unique<wlan::testing::PhyDevice>(device);
    status = dev->Bind();
    if (status != ZX_OK) {
        zxlogf(ERROR, "wlanphy-test: could not bind: %d\n", status);
    } else {
        // devhost is now responsible for the memory used by wlan-test. It will
        // be cleaned up in the Device::Release() method.
        dev.release();
    }

    return status;
}

extern "C" void wlanphy_test_release(void* ctx) {
    if (loop != nullptr) {
        loop->Shutdown();
    }
    delete loop;
    loop = nullptr;
}

async_t* wlanphy_async_t() {
    return loop->async();
}